STEP U7-Handbook-EN Planning a Straw Bale House
Part of the STEP Training - Straw Building Training for European Professionals
Part of the STEP Training - Straw Building Training for European Professionals
- No tags were found...
Transform your PDFs into Flipbooks and boost your revenue!
Leverage SEO-optimized Flipbooks, powerful backlinks, and multimedia content to professionally showcase your products and significantly increase your reach.
(Solar-)
Architecture
Design
Construction
House Installation
Repairs & Maintenance
CONCEPT
2
Straw Bale
HOUSE
U7 – CONCEPT OF THE HOUSE
CONTENT
U7
TIME
PAGE
U7 Intro: Solar Architecture 3 h 4
European Cahrter for Solar Energy in Architecture and Urban Planning 5
U7 Learning Outcomes 10
Intro: History Passive and Active Solar Architeckture 11
U7 Session 1 : Concept of the House – Basics 2 days 21
Presentation: Design Prorcess & National Standards 22
Info 1 : Architecture Short Course: Designconcept 23
Info 2: : Architecture Short Course: Architectural Concept 24
Info 3: : Architecture Short Course: Building Costs 25
Info 4: : Architecture Short Course: Selectionl Building Materials 26
Info 5: More Architecture Videos 27
Info 6: 5 Prinziples of Sustainable Architecture 28
Info 7: Architects and Visions 33
Info 8: Organic Architecture 34
Info 9: Organic: Straw Bale Building & renewable Materials 36
Lesson: Construction plan Straw Bale House (Sketchup) 38
U7 Session 2: House Technique 11 h 40
Presentation: House Technique 42
Info 1 : Heating and Cooling 43
Info 2: Thermal Solar Devices 44
Info 2: Biomass Heating System 45
Info 2: Heat Pumps 46
Info 3: (Controlled) Ventilation 47
Info 4: Wall- and Ffloor Heating 48
Info 5: Mass Oven and Radiation 49
Info 3: Chimney 50
Info 3: (Elektrical) Installations 51
U5 Session 3: Repairs and Maintenance 4 h 52
Info 1 : Common mistakes 53
Credits and Imprint 56
3
„To survive,
we need to adept
all activities
to the natural rhythm
of the earth.“
Sir Norman Foster
4
INTRO
SOLAR
ARCHITECTURE
U7 – CONCEPT OF THE HOUSE
Intro: Solar Architecture
INTRO
U7
001
Europ. Charter for Solar Energy in
Architecture and Urban Planning
Roughly half of the energy consumed in Europe is used to run buildings. A further
25 % is accounted for by traffic. Large quantities of non-renewable fossil fuel are
used to generate this energy, fuel that will not be available to future generations. The
processes involved in the conversion of fuel into energy also have a lasting negative
effect on the environment through the emissions they cause. In addition to this,
unscrupulous, intensive cultivation, a destructive exploitation of raw materials, and
a worldwide reduction in the areas of land devoted to agriculture are leading to a
progressive diminution of natural habitats.
The history of man is the history This situation calls for a rapid and fundamental
of energy transformation.
reorientation in our thinking, particularly on the part
Every historical epoch has developed of planners and institutions involved in the process
of construction. The form of our future built
its own energy-harvesting techniques.
environment must be based on a responsible
Today we are on the threshold
approach to nature and the use of the inexhaustible
of a new solar age.
energy potential of the sun.
The role of architecture as a responsible profession is
of far-reaching significance in this respect. In future, architects must exert a far more
decisive influence on the conception and layout of urban structures and buildings on
the use of materials and construction components, and thus on the use of energy,
than they have in the past.
The aim of our work in the future must, therefore, be to design buildings and urban
spaces in such a way that natural resources will be conserved and renewable forms
of energy - especially solar energy - will be used as extensively as possible, thus
avoiding many these undesirable developments. In order to attain these goals,
it will be necessary to modify existing courses of instruction and training, as well as
energy supply systems, funding and distribution models, standards, statutory
regulations and laws in accordance with the new objectives.
5
U7 – CONCEPT OF THE HOUSE
Intro: Solar Architecture
INTRO
U7
Planners
Architects and engineers must design their projects with a knowledge of local
conditions, existing resources, and the main criteria governing the use of renewable
forms of energy and materials. In view of the responsibility they are thus required to
assume, their role in society must be strengthened in relation to that of nonindependent
planning companies and commercial undertakings. New design
concepts must be developed that will increase awareness of the sun as a source of
light and heat; for an acceptance of solar technology in construction by the general
public can only be achieved by means of convincing visual ideas and examples.
This means:
- cities, buildings and their various elements must be interpreted as a complex
system of material and energy flows;
- the use of environmentally friendly forms of energy must be planned from a
holistic point of view. A professional knowledge of all functional, technical and
design relationships, conditions and possibilities is a precondition for the creation
of modernarchitecture;
- the extensive and constantly expanding body of knowledge about the
conditions governing the internal climate of buildings, the development of solar
technology, and the scope for simulation, calculation and measurement must be
systematically represented and made available in a clear, comprehensible and
extendible form;
- the training and further education of architects and engineers must be related to
future needs and should take place within mutually related systems on various
levels, using the facilities afforded by the new media. Schools, universities, and
professional associations are called upon to develop relevant options.
Building sites
The specific local situation, the existing vegetation and building fabric, climatic and
topographical factors, and the range and availability of ecologically sustainable
forms of energy seen in relation to the duration and intensity of their use, as well as
local constraints, all have to be analysed and evaluated as the basis for each
individual planning project.
The natural resources available in a given location, especially sun, wind and
geothermal heat, should be harnessed for the climatic conditioning of buildings and
should be reflected in the design of their layout and form.
Depending on the geographical situation, the physical form, the material
composition and the use to which a structure is put, the various existing or
emerging patterns of building development will enter into a reciprocal relationship
with the following local factors:
- climatic data (elevation of the sun, seasonal and regional range of sunlight, air
temperatures, wind force and direction, periods when winds occur, quantities of
precipitation, etc.);
- the degree of exposure and aspect of open spaces and the surface of the ground
(angle of slope, form, contour, proportion, scale, etc.);
- the location, geometry, dimensions and volume of surrounding buildings,
topographical formations, areas of water and vegetation (changing patterns of
shade, reflection, volume, emissions, etc.);
- the suitability of existing earth masses as thermal storage bodies;
- human and mechanical patterns of movement; existing building conventions
and the architectural heritage.
6
U7 – CONCEPT OF THE HOUSE
Intro: Solar Architecture
INTRO
U7
The Materials and Forms of Construction
Buildings and urban open spaces should be designed in such a way that a minimum
of energy is needed to light and service them in terms of harnessing heat for hot
water, heating, cooling, ventilation and the generation of electricity from light. To
cover all remaining needs, solutions should be chosen that meet the criteria of an
overall energy balance and that comply with the latest technical knowledge on the
use of environmentally compatible forms of energy.
The use of materials, forms of construction, production technology, transport,
assembly and dismantling of building components must, therefore, take account of
the energy content and the life cycle of materials.
- Regenerable raw materials that are available in adequate quantities and forms
of construction that have a minimal primary energy / "grey" energy content
should be given preference.
-The recycling of materials should be guaranteed, with scope for eventual reuse
or for ecologically sustainable disposal.
- Load-bearing structures and the skins of buildings must be of great durability so
as to ensure an efficient use of materials, labour and energy, and to minimize the
cost of disposal. An optimal relationship between production or embedded
energy, (also known as embodied energy), and longevity should be achieved.
- Building elements that serve the passive or active harnessing of solar energy
and that can be easily accommodated to constructional, design, modular and
dimensional requirements should be subject to further development and given
priority in use.
- New systems and products in the field of energy and construction technology
should be capable of simple integration into a building and should be easy to
replace or renew.
Buildings in use
In terms of their energy balance, buildings should be regarded as self-contained
systems with an optimal exploitation of environmentally sustainable forms of
energy to meet various needs. They should be developed as permanent systems that
will be capable of accommodating different uses over a long period.
- Functions should be laid out in plan and section in such a way that account is
taken of changes of temperature and thermal zones.
-The planning and execution of buildings and the choice of materials should be
based on a flexible concept, so that later changes of use can be accommodated
with a minimum expenditure of materials and energy.
-The permeability of the skin of a building towards light, heat and air, and its
transparency must be controllable and capable of modification, so that it can
react to changing local climatic conditions (solar screening, protection against
glare, light deflection, shading, temporary thermal protection, adjustable natural
ventilation).
- It should be possible to meet comfort requirements largely through the design
of the building by incorporating passive measures with a direct effect. The
remaining energy needs in terms of heating, cooling, electricity, ventilation and
lighting should be met by active systems powered by ecologically sustainable
forms of energy.
The technical and energy resources used in a building should be appropriate to its
function. Graphs showing the requirements for different user categories should be
reconsidered and, where appropriate, modified. Buildings with special uses, such as
museums, libraries, hospitals, etc., should be considered separately, since specific
climatic constraints exist for these types.
7
U7 – CONCEPT OF THE HOUSE
Intro: Solar Architecture
INTRO
U7
Signatories:
Alberto Campo Baenza, Madrid E;
Victor Lûpez Cotelo, Madrid E;
Ralph Erskine, Stockholm S;
Nicos Fintikakis, Athen GR;
Sir Norman Foster, London GB;
Nicholas Grimshaw, London GB;
Herman Hertzberger, Amsterdam NL;
Thomas Herzog, München D;
Knud Holscher, Kopenhagen DK;
Sir Michael Hopkins, London GB;
Francoise Jourda, Lyon F;
Uwe Kiessler, München D;
Henning Larsen, Kopenhagen DK;
Bengt Lundsten, Helsinki FI;
David Mackay, Barcelona E;
Angelo Mangiarotti, Mailand I;
Manfredi Nicoletti, Rom I;
Frei Otto, Leonberg D;
Juhani Pallasmaa, Helsinki FI;
Gustav Peichl, Wien A;
Renzo Piano, Genua I;
JosÈ M. de Prada Poole, Madrid E;
Sir Richard Rogers, London GB;
Francesca Sartogo, Rom I;
Hermann; Schröder, München D;
Roland Schweitzer, Paris F;
Peter C. von Seidlein, Stuttgart D;
Thomas Sieverts, Berlin D;
Otto Steidle, München D;
Alexandros N. Tombazis, Athen GR
Source: "Solar Energy in Architecture
and Urban Planning. Solarenergie in
Architektur und Stadtplanung. Energia
solare in architettura e pianificazione
urbana.". Prestel Verlag, Munich;
New York 1 996.
This document was drawn up by Thomas
Herzog in 1 994-95 in the context of READ
(Renewable Energies in Architecture and
Design) project supported by the European
Commission DG XII. The contents were
8discussed and the wording agreed with
leading European architects.
The City
Renewable forms of energy present an opportunity to make life in cities more
attractive. In the realms of energy supply and transport infrastructures, the use of
these kinds of energy should be maximized through the actual form of the building.
The existing building fabric should be used as far as is practical and possible. The
combustion of fossil fuels must be drastically reduced.
The relationship between cities and nature should be developed to achieve a
symbiosis between the two. Alterations and other measures carried out in public
spaces or existing buildings, or caused by new construction, must take account of
the historical and cultural identity of a location and the geographic and
climatic conditions of the landscape.
The city must be comprehended in its entirety as a selfcontained long-living
organism. It must be possible to control the constant changes in its use and
appearance, as well as in technology, in order to ensure a minimum of disturbance
and a maximum conservation of resources. Cities are resources in built form and
have a high primary energycontent. To achieve a closer integration with the
overall balance of nature, their various neighbourhoods, buildings and open spaces,
their infrastructures, and their functional, transport and
communication systems must be subject to a constant process of
modification and reconstruction that follows natural cycles of
renewal.
The form of the urban and landscape structures that man
creates must be governed by the following environmental
and bioclimatic factors:
- orientation of streets and building structures to the sun;
- temperature control and use of daylight in the public realm;
- topography (land form, overall exposure, general situation);
- direction and intensity of wind (alignment of streets, sheltered
public spaces, systematic ventilation, cold-air corridors);
- vegetation and distribution of planted areas (oxygen supply, dust
consolidation, temperature balance, shading, windbreaks);
- hydro-geology (relationship to water and waterway systems).
Urban functions such as habitation, production, services, cultural
and leisure activities should be co-ordinated with each other where
this is functionally possible and socially compatible. In this way the
volume of vehicular traffic can be reduced. Production and service
facilities can complement each other and be used more intensively
and efficiently. Pedestrians, and vehicles that are not propelled by
the combustion of fossil fuels must be given privileged treatment in
urban areas. Public transport should enjoy special support. Parking
needs should be reduced and the consumption of petrol and other
fuel minimized.
An economic use of land, achieved through a reasonable density in
new planning schemes coupled with a programme of infill
developments, can help to cut expenditure for infrastructure and
transport and reduce the exploitation of further areas of land.
Measures to restore an ecological balance should also be
implemented. In the public spaces of towns and cities, steps should
be taken to improve the urban climate, temperature control, wind
protection and the specific heating or cooling of these spaces.
Berlin 3/1996
Alberto Campo Baeza: DBJC House, www.javiercallejas.com
Victor Lûpez Cotelo, Santiago, nuevasarquitecturas.blogspot.co.at
Thomas Herzog, Solarhaus
Sir Norman Foster, Reichstagsgebäude Kuppel (wikimedia)
Nicholas Grimshaw: Experimental Media and Performing Arts Center Hermann Hertzberger, Diagoon Delft (Wikimedia)
Renzo Piano, Jean-Marie Tjibaou Cultural Centre (Wikimedia)
Gustav Peichl, Haus der Barmherzigkeit, Wien (wikimedia)
U7 – CONCEPT OF THE HOUSE
LEARNING OUTCOMES
U7
Level 3 (ECVET credit points: 4) / Level 4 (15)
Knowledge
Trainees …
• know about the existing national relevant building
regulations related to straw bale building.
• know the symbols to be able to understand
plans and construction drawings.
• understand the main concept of the building
(purpose, main structure: foundation, walls,
openings and roof).
• know general principles of sustainable design
(location, climate, shape, energy saving, building
materials).
• know general requirements for healthy environment
and inner climate.
• are familiar with different measurement for
environ¬mental impact (ecological foot print,
building biology, life cycle management …).
• know different concepts for sustainable houses
like passive house concept, bioclimatic
house in France, Minergie in CH etc...
• know about solar and internal gains, the importance
of insulation and the different types
of windows.
• know the relevance of wind- and airtightness,
natural or mechanical ventilation according to
national regulations.
• know about thermal protection in summer
and winter and the use of thermal mass.
• know criteria for choosing building materials
(sustainability, embodied energy, CO 2 equivalents,
health, price, cradle to cradle concept,
social aspects).
• know different heating systems, their advantages
and disadvantages (emissions, CO 2
, renewable,
…).
• know principles how to provide inner climate
comfort in winter and summer (cooling systems).
• know principles of house infrastructure (electricity,
water, sewage) and know the specific
requirements for straw bale houses.
• are aware of most common faults of straw
bale construction, its damages and its cause.
• are aware of different life duration of the construction
parts and their maintenance intervals.
Skills
Trainees can …
• read and understand a plan with all technical
details.
• draw and sketch basic details.
• repair damages of the straw bale parts of the
house.
Competence
Trainees can …
• understand, execute and explain general principles of ecological design.
• evaluate and choose suitable building materials and systems and know when and how to ask experts.
• support other experts to reduce the ecological foot print.
• work in teams.
10
U7 – CONCEPT OF THE HOUSE
Intro: Solar Architecture
INTRO
U7
002
History of Passive and
Active Solar Architecture
The passive solar architecture is not new, it has been used in all parts of the world
for millennia. An example may be ancient Greece about 2,500 years ago, which was
then also in an energy crisis. As a solution to the problem of ever scarcer and more
expensive firewood, the glazed south face with a protruding stem (roof overhang)
has been developed. Socrates described it this way: "In houses facing the south, the
sun penetrates through the vestibule into the living rooms in the winter and warms
them. In summer, however, the roof of the vestibule keeps the sun off and provides
cooling shade. "
The massive walls and the thick slabs of the dark stone floor absorbed sunlight
during the day and radiated it back at night - inventing the 'storage heating system'.
Within only a decade, the new architectural style should have prevailed to the
farthest colony!
In addition, the world-wide clay/earth
construction architecture is connected
with solar energy in more than one form -
after all, the clay bricks are usually dried
and hardened by the sun.
An early form of passive solar use are the
so-called Beehive houses made of mud
bricks, which are used as living and
storage space. Due to its conical shape,
one part of the roof is irradiated more and
more strongly than the other, creating an
air circulation inside, which sucks the
warm air through a hole in the upper part
to the outside. In addition, the thick clay
walls protect from the sun.
11
U7 – CONCEPT OF THE HOUSE
Intro: Solar Architecture in North America
INTRO
U7
The term solar house (Sonnenhaus) was mainly used for those buildings that cover
both their hot water and their heating energy needs with solar energy. For the
Central European climate energy technologies are only under very favorable
circumstances able, to cover the total heat demand on their own - should things not
be prohibitively expensive. Especially, if the electric current is also to be produced
solar-energetically, it seems to be necessary to interconnect with other systems (heat
pumps, wind turbines, heat recovery, methane gas, etc.). The architectural target
projection then corresponds more to that of an energetically completely selfsufficient
house.
A pioneering designer of passive solar homes in the
1930s and 1940s is the architect George Fred Keck of
Chicago, Illinois. For the 1933 Century of Progress
Exposition in Chicago, he designed the fully-glazed,
three-story, and twelve-page House ofTomorrow to
reflect 'European Modernism'.
Keck notes that the house, clad in aluminum, warms up
enough on sunny winter days, even before the stove is
installed - and begins to incorporate large south-facing
windows into his designs. In 1940, he designed a
passive solar home for property magnate Howard
Sloan of Glenview, Ill. As the Chicago Tribune calls it,
which is the first modern use of the term. Sloan himself
then begins with the construction of passive solar
houses and is considered a co-initiator of a veritable solar house movement in the
1940s.
In 1940, the first reports appeared that the scientific staff of the Massachusetts
Institute ofTechnology (MIT) Hoyt C. Hottel and Byron B. Woertz have been building
a house that uses the sun for heating and hot water. It will be used as a habitable
laboratory for various forms of solar energy production. The water heated by the
solar collectors of the roof called "heat traps" is stored in a large cellar tank. It is
MIT's Solarhouse I, which plays a crucial pioneering role in the development of this
technology.
Even the world-famous Frank Lloyd Wright uses in
some of his designs principles of passive solar
architecture, especially at his built in 1944 near
Madison in Wisconsin Jacobs House II, with his
characteristic quadrant shape with fully glazed, inner
south facade, known also under the name, Solar
Plenary Hall'or' Solar Hemicyclo' (left picture).
The Dover Sun House is the first house built in 1948 to
incorporate flat solar panels and a passive solar
energy concept that will allow the five-room house to
be constructed throughout the year using only solar
energy for heating! Core element is a large-scale 'heat trap', which consists of two
separate glass panes with a black metal plate in between. Here, the air is heated to
around 65 ° C and then distributed by fans in the house. Instead of water, Glauber's
salt (sodium sulfate decahydrate) is used as the heat storage medium.
1 2
U7 – CONCEPT OF THE HOUSE
Intro: Solar Architecture in Europe
INTRO
U7
In 1973, Vagn Korsgaard developed a DTH energy house at the Danish Technical
University in Copenhagen, carried out simulations, optimized designs and finally
built a passive house that is still used as a university guesthouse, as all passive
systems still work. The active solar technology was not renewed after defects. The
goal zero-energy house at the DTH is later reset in favor of the low-energy house.
The first eco-house in Belgium was built in 1976 by the
architect and visionary Luc Schuiten to "make it possible
to survive even after the end of the oil and coal". The
Orejona solar wooden house is located in a wooded area
near Brussels. (Photo: www.vegetalcity.net/en/topics/thecarrying-out/)
Still, the high prices of these high-quality and
sophisticated multi-component solar energy systems
prevent a broader application. However, profitability
increases with increasing living space, and in 1973 300
m2 of living space is considered a minimum. Between
1974 and 1977, the number of (simple) solar houses in
the United States rose from just 250 to around 10,000, with half of the builders
receiving public support. The goal is to increase this number to 2.5 million houses by
1985. Meanwhile, the use of solar heating and cooling systems is also being tested
in high-rise buildings, as has been the case to a lesser extent in Jordan and Kuwait.
In Germany, a model house is being built in Walldorf near Heidelberg, where a
reduction of the annual fuel oil demand by up to 75% is achieved, as well as the
solar house of Stuttgarter Energieversorgung Schwaben AG (EVS) with 1 ,100 m2 of
living space in 1977, which already had two winters in 1980 additional energy use is
inhabited. The house has a large earth / water storage for heat energy but is not yet
profitable as a single product. Price advantages would only arise in a series
production.
ArchitectThomas Herzog built a futuristic solar house
with a triangular cross-section in Regensburg from 1977
to 1979, which in addition to the passive utilization also
integrates thermal collectors and solar cells from AEG.
The house is energetically
finely divided into zones:
energy collection zone or
garden zone / distribution
zone / room zone / side
room zone.
The large slanted glazing
in the south for energy
gathering also forms a
buffering transition zone.
Storage mass stores the collected heat and releases it with a time delay. The heated
living area is a compact partial zone to the west, and the east, north and west
facades are heavily insulated. All rooms are open passageways, allowing the air to
circulate as needed. The overheating protection is done by venting - the cut of the
house follows thermal conditions. In addition there is a sunscreen, which prevents
the conversion of sunlight into heat energy in summer.
1 3
U7 – CONCEPT OF THE HOUSE
Intro: Solar Architecture in Europe
INTRO
U7
Already in 1979, the Freiburger Stadtbau GmbH
commissioned the Solarhaus Freiburg as a trend-setting
pilot project for the use of solar energy. In the German-
American demonstration project, solar technologies are
being used for the first time in an apartment building.
Amongst others, vacuum tube collectors from Philips /
Stiebel Eltron and the Corning Glass Works are being
tested.
After 25 years, the solar heating system is still working
flawlessly with continuous operation, with low
maintenance and high yield: Solar heat has saved 65,000 liters of fuel oil during this
period. If the insulation measures are added, the solar house has until 2004, so over
the course of its first 25 years of operation, consumed less than a quarter of a
million liters of fuel oil less than comparable conventional buildings from that time!
Between 1979 and 1985, the first Austrian thermal solar plant in the Neumarkt II
multi-family residential building was erected in the Salzburg's Alpine foothills in four
phases, comprising a total of 11 8 residential units.
There is now a general breakdown that differentiates between four categories of
passive solar energy systems, which are used partly or jointly by solar houses.
These are:
• the direct exploitation
• the thermal storage
• the thermal buffer zones
• the thermal circulation
The techniques generally used in low-energy houses can be summarized as follows,
according to the Gesellschaft für Rationelle Energieanwendung:
• Compact building form
• Particularly high thermal insulation
• Highly insulated windows with high solar energy consumption (passive)
• Temporary heat protection of the windows at night (insulated, tightly sealed)
• Reduction of thermal bridge losses through carefully executed connection
details
• Windproof building envelope
• Ventilation systems with heat recovery
• Highly adjustable, adaptable heating systems with high efficiency
• Active solar energy use (brewing water / heating flow)
• Translucent thermal insulation materials in the exterior wall or roof area
• Ground channels for supplying fresh air at low outside temperatures
• heat pumps (soil / groundwater / outside air)
1 4
U7 – CONCEPT OF THE HOUSE
Intro: Solar Architecture in Europe
INTRO
U7
The largest low-energy house in Europe to date
is built in 1995 in Vienna-Leopoldstadt, it
consists of 333 apartments in two opposite
parts of the building of 8 and 9 floors and has
among other things a sun roof with swimming
pool - although it is a project of social housing.
Designed by the architect Harry Glück, this Alt
Erlaa residential complex has a compact,
energy-saving building form, heat-resistant
windows and a heat recovery system that heats
the process water. Here again, in cooperation
with the Fraunhofer Institute for Building
Physics, a total of 500 sensors are distributed
throughout the complex, registering 1 3
different parameters every 10 minutes.
In May 2006, the solar company Jenni Energietechnik AG built the first exclusively
solar-heated multi-family house in Europe in the Swiss Oberburg. 276 m2 of solar
panels supply their heat to a 205,000-liter solar
storage tank, which stands in the middle of the
building and stores up to 95 ° C hot water for
the winter months. The building does not
require additional heating. In addition to the
central hot water storage tank, the building is
also state-of-the-art in terms of energy
consumption and comfort in the ventilation,
exterior noise and heating sectors. The 100%
solar apartment building was inaugurated in
August 2007.
The Sonnenschiff by Rolf Disch is considered to be the world's first commercial plus
energy service center at its opening in 2006 in Freiburg. On the building, which
stands directly next to the solar settlement
Freiburg (see below), Sunstream is obtained,
and at the nose of the solar ship, a rather
symbolic small wind turbine provides
additional renewable electricity. In addition,
state-of-the-art building technologies ensure
optimal energy savings. The exterior walls,
parapets and ventilation flaps of the office and
commercial building are vacuum-insulated, and
the large mass of the building is used as
storage for heat or cold. The exterior walls are
glazed over a large area with floor-to-ceiling,
highly insulated special windows, and the
ceilings and walls contain additional latent heat
storage (cold accumulators). There is also a
unique ventilation system with heat exchanger.
The solar ship already wins the European Solar Prize 2002 during its planning phase
- followed by five further high honors until 2008.
The Solarsiedlung Freiburg (Am Schlierberg) is considered to be the largest solar
housing estate in Germany with over 210 plus-energy houses and apartments (from
75 m2 to 260 m2 of living space) when completed in 2007.
1 5
U7 – CONCEPT OF THE HOUSE
Intro: Solar Architecture in Europe
INTRO
U7
2007: After being able to speak of the previous years as a beginning, the green,
ecological, adapted or even sustainable architecture is rapidly gaining momentum.
Which also makes the solar architecture more and more conscious of the specialists,
the decision makers and the public.
Nevertheless, these are first and foremost
technological (high-tech) concepts that actively
convert solar energy and make less passive use
of it, and that only partially addresses the need
for a CO2-free cycle economy and sustainable
materials.
The Russel House (also Sliding House) was
developed in 2008 in Suffolk, UK. The biggest
difference can be seen when suddenly the
greenhouse appears, as you can see on the
photos left. Passive heating or cooling saves a
lot of energy. Next door is also a small wind
turbine set up. In contrast to many other projects
this is excellently documented and therefore
also described here.
In June 2010, the first Solar Decathlon Europe
(SDE) took place in Madrid. The rules are based
on the original American competition rules. New
are the evaluation points for innovation and
sustainability of the concept. Team Austria of TU
Vienna won in 201 3 with the passive house LISI,
www.solardecathlon.at
A particular form of solar application in architecture is formed by entire SOLAR
CITIES, which make extensive use of solar and other renewable energies. One of the
first solar settlements was the village of Penzberg, which had already converted to
solar energy in Bavaria in 1980, which subsequently also became the first town in
Germany where - according to Wüstenrot - "no oil was needed at all".
The BedZed (Beddington Zero Energy
Development) community in Hackbridge,
London, is a carbon-neutral planned solar estate
built between 2000 and 2002 by the Peabody
Trust, a charitable foundation and registered
housing cooperative. It comprises 99 apartments
and around 1 ,400 m2 of work space. In addition
to equipping with solar cells and combining
boilers to generate electricity and heat, energy
meters are placed prominently in the house
rather than hidden away from sight. Other
effective steps include extra thick insulated
walls, strategically placed windows to maximize
light and heat from solar energy, and airflow
that eliminates the need for fans or air conditioning.
1 6
Text: AchmedA. W. Khammas, Buch der Synergie (www.buch-der-synergie.de) with
remarks by Herbert Gruber; Photos: Wikimedia (or source mentioned in the text)
U7 – CONCEPT OF THE HOUSE
Intro: Solar Architecture in Europe
INTRO
U7
In Linz, Austria, a new district was
built in Pichling starting in 2001 with
1 ,294 apartments, whose name
solarCity stands for a comprehensive
use of solar energy. This starts with
the planning of the buildings
according to the principles of solar
architecture through the use of
passive and active solar energy. The
individual access to the sun results
from apartments with large
windows, and solar panels on the
roofs contribute to warm water
heating. The 1995 planned city was originally intended for 25,000 people.
After 2001 , a former barracks area in the
Spanish city of Zaragoza is rededicated for
housing, created since 2004, the eco-city
Valdespartera, a municipal funded housing
project with about 10,000 housing units whose
special feature is the adaptation of ecological
housing with the local microclimatic conditions.
The Ecociudad Valdespartera is set up as an
implementation company, of which the city
holds 80%, and the regional government 20%.
The main approaches of the project are the
urban design, which is based on solar radiation
and terrain, as well as ecological materials and logistics concepts. The buildings are
equipped with solar panels, with heat-storing tiles and a good insulation of the
interiors. (Image: vimeo.com/99166929)
Several sets of criteria for ECO-CITIES have been suggested, encompassing the
economic, social, and environmental qualities that an eco-city should satisfy. The
ideal "eco-city" has been described as a city that fulfils the following requirements:
Operates on a self-contained economy, resources needed are found locally
Has completely carbon-neutral and renewable energy production
Has a well-planned city layout and public transportation system that makes the
priority methods of transportation as follows possible: walking first, then cycling,
and then public transportation.
Resource conservation—maximizing efficiency of water and energy resources,
constructing a waste management system that can recycle waste and reuse it,
creating a zero-waste system
Restores environmentally damaged urban areas
Ensures decent and affordable housing for all socio-economic and ethnic groups
and improve jobs opportunities for disadvantaged groups, such as women,
minorities, and the disabled
Supports local agriculture and produce
Promotes voluntary simplicity in lifestyle choices, decreasing material
consumption, and increasing awareness of environmental and sustainability
issues
Future Visions of SMART CITIES: www.youtube.com/watch?v=RAU85nCfFTA
17
U7 – CONCEPT OF THE HOUSE
Eco-Cities & Straw Bale Building
INTRO
U7
Lammas is the UK’s first planned Ecovillage. Lammas is a project which began as a
fireside chat (as so many do!) with Simon Dale, Tony Wrench and Paul Wimbush.
Tony Wrench had built a low impact roundhouse which has come to define low
impact living in the UK. Paul
Wimbush had been living in low
impact communities for most of his
adult life and was ready to create a
blueprint from what he had learned.
The houses at Lammas use lowimpact
architecture with a
combination of recycled and natural
materials. The project is essentially
a self-build affair, where nine
families have 5 acres on which to
build a family home, a workshop/shed and animal shelters. There are a combination
of building styles including straw bale, earth sheltered, timber frame and cob. The
houses feature the latest environmental technologies and design techniques. The
dwellings blend into the landscape. Indeed they are largely made from elements of
the landscape (for example turf roofs, cob walls, timber cladding).
http://lammas.org.uk/
The Eco-Village Sieben Linden is a
socio-ecological model settlement
and community in the Altmark
community Beetzendorf (Saxony-
Anhalt). It sees itself as a model and
research project for a futureoriented
way of life in which work
and leisure, economy and ecology,
individual and community,
cosmopolitan and village culture find a balance in small life circles. For Siebenlinden
the architect Dirk Scharmer has planned numerous multi-family houses in straw bale
construction (the first in Germany). http://www.siebenlinden.de
18
Standing for ‘Low Impact Living Affordable
Community’ LILAC is the UK’s first cohousing
project. A community of 20 people are living and
sharing this area in Victoria Park, making the world
a better place for it.
It’s a world away from any of the more modern
buildings in the Leeds area, yet it’s probably the
most ambitious, looking to improve the
environment and make housing more affordable
for the local community. Working with architects at
White Design Associates, the community used the
ModCell system to build their houses using
renewable, locally-sourced materials that help to
reduce carbon emissions by nearly half. Comprising of 20 households, it’s an
important build, because it allows first time buyers to get their foot on the property
ladder with affordable housing that is unconditionally their own. The idea of LILAC is
that you buy shares in the community, splitting the cost of your home with the rest
of the citizens, helping out with building, cooking, cleaning and, well, being nice to
each other. http://www.lilac.coop/
U7 – CONCEPT OF THE HOUSE
Solar-Architecture & Straw Bale Building
INTRO
U7
With the use of straw bales as insulating
material, in 2007 a further step was taken in the
single-family home of Christian and Barbara
Fink in Graz to reduce the energy required for
the construction of a building. Together with the
timber-framed construction, the use of clay
plaster on the storage walls in the interior and
the energy supply concept, which is 100% based
on renewable energy sources, a building was
erected in Gleisdorf that most convincingly
demonstrates the program ideas of "Energy in
minds!" Designed by architects Hegedys & Ull,
this ecological building material, low energy
demand and the use of solar energy and
biomass make possible a concert ("CONCERTO") of sustainability and cosiness.
www.baubiologie.at/strohballenbau/passivhaus-fink-3/oder
www.aee.at/aee/index.php?option=com_content&view=article&id=269&Itemid=113
In Tamera (Portugal), two
construction methods have been
implemented so far: clay
construction - based on the idea of
realizing cost-effective alternatives
that use the resources of the
environment - and the multi-zone
architecture that is currently visible
above all through the shadow roof
constructions. The SolarVillage is still
looking for a visionary concept for a
solar architecture of the future. In the
following, the two approaches are
described by the respective
architects: Gernot Minke, former
Professor of Earth Building in Kassel,
Germany, and Martin Pietsch,
designer and master builder, Tamera.
The walls of the auditorium ofTamera tower eight meters high. With 400 seats, the
Auditorium of the Peace Research Center is the largest bale-and-loam construction
in the Iberian Peninsula. The auditorium consists of a wooden framework, which was
bricked up with straw bales and plastered inside and outside with a clay layer. On
the outside wall, lime was added to the clay to protect it from the weather. The
gently sloping roof is overgrown with grass and herbs.
With the help of loans and a donation from its network in 2011 , Tamera was able to
set up a so-called "grid-connected island system": The existing 20kW tracked
photovoltaic systems directly supplies Tamera with electricity, saving the harvested
surplusSince 201 2, Tamera has been able to meet its electricity needs by 60% in
summer and 40% in winter through solar energy. The rest comes from the public
network. For a complete self-sufficiency it would be necessary - not least by the
seasonal fluctuations - to build a very large-sized and expensive energy storage.
For this reason, Tamera is currently aiming for an 80% supply from renewable energy
sources. When this goal is achieved, complete energy can be achieved in the event
of a breakdown or failure of the care systems through behavioral change.
www.tamera.org/
19
HOUSE
CONCEPT
20
U7 – CONCEPT OF THE HOUSE
SESSION PLAN S1
U7
Session Plan U7-S1 : House Design
Objectives:
• understanding the main concept of the building (purpose, main
structure: foundation, walls, openings and roof)
• knowing general principles of sustainable building (sustainable,
wider context, external influences: location, climate, shape…
energy saving/alternative energy, sources/water, waste, building
materials, everyday use, building surrounding/permaculture),
requirements for healthy environment, inner climate
• being acquainted with different tools to measure environmental
impact (ecological foot print, building biology, life cycle
management systems: LEEDS, BREEM….
• knowing criteria of national standards for sustainable houses,
eg.: passive house concept, bioclimatic house in France, …, solar
and internal gains, insulation, windows, reduction of thermal
bridges, airtightness, natural or MVHR (mechanical ventilation
with heat recovery), shading in summer, use of thermal mass
• knowing criteria for choosing building materials (sustainability,
embodied energy, CO 2
equivalents, health, price, cradle to cradle
concept, social aspects)
• reading plans and technical details (meaning of different line
types, floor plan, sections)
Methods:
• Explanations, discussions, working in groups
• Presentation for the group
• Sketching a basic house design
Theory
Practice
• Main concept of the building (purpose, main structure:
foundation, walls, openings and roof)
• External influences (location, climate, shape …) and
requirements for inner climate
• Principles of national standards for sustainable house, eg.:
passive standard concept: external solar gains and internal
gains, insulation, windows, elimination of thermal bridges,
airtightness, MVHR (mechanical ventilation with heat recovery),
shading in summer)
• Steps of designing process
• Building materials (sustainable use, primary energy, CO 2
equivalents, health, price)
• Sketching a basic house design
• Reading plans
Trainer:
Place:
Classroom
Workshop
Duration:
1 day
Equipment:
Beamer
Flip chart
Laptop
Training resource pack
Documents:
Info Sheets:
i1 – Concept of the House
i2 – Sustainability
i3 – Designing Process
i4 – National Standards
i5 – Building Materials
i6 – Understanding Plans
i7 – House Design
Trainer Sheets:
Tr1 Exercise – Sustainability
Tr2 Exercise – Materials
Tr3 Exercise – Sketches
Text Sheet:
Tx1 Concept of the Building
Tx2 Sustainable Principles
Evaluation:
Multiple Choice
Organisation:
• Preparing examples of building materials (2 hours in advance)
21
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : House Design
INFO S1
U7
22
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Architecture Basics
TIPPS
U7
003
Architecture Short Course 1 :
How to Develop a Design Concept
All architecture begins with a concept. If you’re struggling to find one, curious about
what one is, or wondering how architects begin their projects; this short course will
walk you through the process I use and some of the techniques I rely on to develop
architectural concepts all illustrated with one of my residential projects. Design is a
dialogue, and the concept ensures you have something to talk about. In this video I
discuss the precise steps I take when beginning each project and how those steps
lead me to an architectural concept. Before we can develop the concept, we have to
first understand the practical constraints. My design process begins only after
gathering and assessing all the given parameters for a project. Now, this primarily
consists of three types of information. There’s information derived from the site -
things like: local climate, the prevailing winds, the solar aspect, vegetation,
neighbouring structures, the site’s history, and any unique liabilities or opportunities.
The site of course also comes along with legal frameworks for development, which
describe where and what we can and can’t build. The second type of information
we’ll gather is from the client. Every client has a set of cultural beliefs and
preconceptions, preferences and agendas. Of course, we’ll want to determine their
budget, and understand the personality traits and organizational politics which
might also shape the design. The client and the building type together determine
what architects call, “the program” which is essentially a detailed accounting of all
the spaces the building will contain. And the third type of information I gather is
related to the building typology – is it a museum, a home…or a school for example?
To learn about a building typology we often conduct an analysis of notable or
relevant historical precedents. We want to know the essential problems these types
of structures grapple with. Understanding the history of the archetype allows us to
approach a problem from a fresh perspective. All of this is necessary information
that we collect for every project. This inventory can also serve as the progenitor for
the design concept – our seed idea. And, rather than shunting creativity, these
constraints often incite the creative process.
Concept Inspirations Discussed: - Site - Client - Narrative - Materials - Structural -
Mainifestos – Formal
As with a good film, the setting, the characters, the cinematography, and the plot all
conspire to make it what it is. It’s the experience you’ll recall rather than the concept
per se. Sure, the concept sets the film in motion and it’s the starting point for all that
follows. But this concept – the one or two-line description – can’t possible capture
the richness and depth of the finished film…or in our case the architecture. Yet
without it, the work is unfulfilling and so it should be clear that the concept is
necessary for all our work as architects.
VIDEO-TIPP
https://www.youtube.com/
watch?v=k4dVgbuxBAw
30X40 Design Workshop
23
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Architecture Basics
TIPPS
U7
004
Architecture 2: Developing
the Architectural Concept
Developing the architectural concept into floor plans, designing the form, and
refining the spatial ideas are all covered in part 2 of our architecture short course.
The first step in making the abstract concept real is to sketch a floor plan and then
give that plan a three-dimensional form. A floor plan is a quick way of describing the
hierarchy and relationship of spaces and it begins fixing their real physical
dimensions and shapes. Throughout the design process architects must continually
consider the design in both the plan, or overhead view, and the sectional, or
volumetric view. The easiest way I’ve found to do this is to begin by sketching a plan
and then construct a three-dimensional version of that plan either in model form or
by sketching. In order to get to three dimensions, we have to make some decisions
about form, space, and order. When we speak about form we’re referring not only to
a building’s shape but also to its size, scale, color, and texture…basically, all the
visual properties of an object. Form has a direct relationship to space in that it
influences both interior and exterior rooms. And lastly, order is how we choose to
orient and relate the forms and spaces to each other. This directs the inhabitant’s
experience of a place.
VIDEO-TIPP
www.youtube.com/
watch?v=U2W5Wmp1 5YA
30X40 Design Workshop
24
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Architecture Basics
TIPPS
U7
005
Architecture 3: Building Costs
as a creative constraint
Building cost has a direct impact on our design and it's one of the most basic and
obvious concerns for architects and clients. In this video I'll show you how I use it as
a creative constraint that informs our building design. Building cost is divided into
two general categories: soft and hard costs. Soft costs are the indirect cost of design:
architectural fees, consultant fees, permitting, financing, and legal fees. Hard costs
are all the cost directly attributed to the construction of the physical building. Early
on in the design process we know little about the building and so we use square
footage as a means for estimating the building's cost to construct. But square
footage alone won't provide all the information we need to properly describe the
cost of a structure, some spaces cost more to build than others. Factoring the square
footage provides an added level of precision and allows clients and architects to
better plan how design affects the overall budget. Planning for unforeseeable
conditions is important as well and I describe how much of a contingency to add to
the project at each phase of the work. Cost considerations are crucial to realizing
both our client's project and our vision for the work in the world and this video
shares the framework I use to get there.
VIDEO-TIPP
www.youtube.com/
watch?v=oZbd-S7WcwU
30X40 Design Workshop
25
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Architecture Basics
TIPPS
U7
26
006
Architecture Short Course 4:
Choosing Architectural Materials
A primer on how to choose architectural building materials. In part 4 of the
architecture short course I share my personal system for selecting materials and I
walk you through the selection process for the case study residential project we've
been following.
The lesson is divided into five general categories: 1 - Physical characteristics
2 - Context, 3 - Experiential qualities, 4 - Cost, 5 - Manufacturing concerns
Each category can be thought of democratically, that is, none is necessarily more or
less important than another. Your design will begin to suggest what materials best
represent your ideas. Study the work of architects like Tadao Ando, Louis Kahn, Peter
Zumthor, LeCorbusier or Aalto – and witness the depth of knowledge and skill they
deployed using a relatively limited set of building materials: wood, concrete, glass,
and brick. You can say quite a lot using a very spare palette of materials. The real
lesson here is that the material selections were a result of intentionally considering
all aspects of the experience I wanted to create for our client as well as the necessity
of building something durable and meaningful here in an extreme coastal
environment. It has to look good and tell the right story. It has to comfort and
shelter, reduce and minimize our impact on the site and recreate - in an abstract way
- the quiet of the forest in the new place we’ve created. It’s a tall order, but by
following a process which prioritizes the most important characteristics for each part
of the architecture you can find a methodology for choosing wisely. Material
selection requires you to be an observer and student of the built world. Study
buildings you admire and note how the material qualities effect how you feel there.
Choose a few simple materials and get to know them deeply. Concrete and wood are
excellent places to start. And if you’re like Tadao Ando, perhaps make a career of.
Learn to exploit their inherent qualities: heavy and light, cool and warm, malleable
and permanent. Use these as a basis for your own explorations and tests to make
your designs more truthful, more beautiful and more interesting.
VIDEO-TIPP 30X40 Design Workshop: www.youtube.com/watch?v=dcbgDFpfScY
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Architecture Basics
TIPPS
U7
007
30X40 Design Workshop:
More Videos
Floor Plan Design Tutorial (8:36)
https://www.youtube.com/watch?v=R7YxG4nsqeg
In this design tutorial I'll show you how I develop and sketch floor plan ideas quickly.
From diagram to rough sketch and on to more formalized plan layouts, you can
follow along as I show you everything you need to draw a floor plan using one of
our new residential projects as an example. I discuss in detail: - why you should start
with diagrams (and not floor plans) - information you'll need before drawing - tools I
use and recommend - tips for developing better ideas - form, space, and order (of
course) - using grids - scale - and what I listen to when designing...
How to Find Architectural Ideas (10:48)
https://www.youtube.com/watch?v=CqQumzZVa1 U
Eight strategies I use to find architectural ideas. Do you find the blank page as
terrifying as I do? I'm starting a new project and I thought I'd use this video to talk
about how I deal with this and precisely how I search for new ideas for my
architecture. I discuss in detail: - Bisociation -Trusting the design process -
Embracing constraints - Inventing deadlines - Doing the opposite (anti-project) -
Subtracting to solve - Stealing (like an artist) These are just a few of the design hacks
I use to help grease the creative wheels and instill the confidence I need to keep
moving forward. What's great is these techniques work for a whole host of
disciplines and creative fields, it isn't exclusive to architecture.
Draw like an Architect - Essential Tips (11 :51 )
https://www.youtube.com/watch?v=24rnfO8s0hU&t=1 3s
In this video I share my tips for improving your architectural drawing technique. I'll
walk you through a detail sketch, a basic section sketch and then transition into a
few of my CAD working drawings to illustrate how a simple toolset can produce a
range of drawings. Important concepts discussed: - Lineweight (and the pens I use) -
Atmospheric perspective - Drawing technique - Corners - Iteration - Foreground,
middle-ground, and background -The 'squint' test - Shade + shadow - Entourage
(http://www.mrcutout.com/ , http://skalgubbar.se/ , http://pimpmydrawing.com/ ) In
the end, it’s not about copying my drawing style or anyone else’s. It’s about
developing your own and the best way to do that is by seeking out the architectural
drawings you like and try and duplicate their results. Study their commonalities,
how do they differ from the way you draw? Some of my favourites are found in the
Detail in Contemporary Residential architecture books or Detail magazines…all the
German stuff.
How to Choose the Right Projects + How to Say No to the Wrong Ones (An
Architect's Guide) (7:37)
https://www.youtube.com/watch?v=XUlJoiOWhqE
Often our first inclination is to accept every opportunity that presents itself, but -
somewhat counterintuitively - saying no can actually help your business grow
buying you freedom and helping you build a stronger brand. In this video I list the
questions you should ask when deciding which projects to take on and how best to
determine which ones to decline. I share the framework I use when choosing which
clients my small business can collaborate with. Be sure to watch the end where I
describe the benefits and a methodology for saying, "No..." Although these
questions specifically apply to a residential design practice, they can be applied
more broadly to many facets of life helping you to focus on your priorities and goals
rather than the priorities of others.
27
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Sustainable Architecture
TIPPS
U7
008
5 Prinziples of Sustainability in
Architecture (Frey Architects)
Ecology, economy, society, creative will and incentive: these are the five principles
of sustainability for the architect Wolfgang Frey. With his five-finger principle, he
makes clear that an isolated consideration of individual aspects is not sufficient and
rather a holistic planning approach is necessary to build ecologically, economically
and socially sustainable.
1. Ecology in architecture
The use of abundantly available cheap materials and construction models often runs
counter to the intelligent use of resources. It takes both: the development of
concepts that lead to intelligent and viable solutions, also helping to raise the awareness
of those who stand to benefit from these solutions. In addition to ecological
architectural designs, we focus on the economic and social aspects of housing
development. Only taking account of all these aspects can lead to lasting changes.
Energy-optimized
A building should preferably not consume energy, but instead produces an energy
surplus (so-called ‚positive energy house’). Energy efficiency is not only about the
energy consumed in the building, but also the energy that has been used in
materials to construct the building.
28
Modern architecture: energy-saving and energy-efficient
Ideally, a building does not consume energy, but it produces an excess of energy, as
in the case of the Plus Energy House. Saving energy and using regenerative energy
costs less and has no negative impact on the environment. Knowledge of state-ofthe-art
technologies and their use as well as existing environmental standards are
the planning basis for realizing sustainable buildings.
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Sustainable Architecture
TIPPS
U7
The long-term protection of the environment and climate, not least as a habitat for
humans, is one of the most urgent goals of modern, sustainable architecture. The
construction of energy-saving and energy-efficient buildings and the further
development of corresponding concepts in architecture is therefore of particular
concern to us.
The Resources
It is common practice to use materials whose production consumes a lot of energy
to build houses that are supposed to be very energy efficient once occupied. For
instance, the manufacturing of cement or the firing of roof tiles (this is also true for
those that ensure high degrees of insulation) requires extreme amounts of energy
and results in massive CO2 emissions.
Also materials containing asbestos are admittedly cost-effective but will also cause
major liabilities. Natural building materials are easier to process even after decades.
Renewable materials need less energy to be manufactured. They don’t produce
waste and therefore have no negative effect on the energy balance. So wherever it’s
possible we only apply renewable resources and equipment.
Healthy materials
Environmentally harmful materials also have impact on people’s physical and
emotional well-being. That’s why we do not use materials such as PVC, solventbased
paints and lacquers or herbicide agents.
2. Economy in architecture
We recognize the responsibility of architects in both structural and financial
planning. Just as it is necessary to plan the dimensions of a building, it is also
necessary to work out various financing alternatives, with the aim of arriving at an
alternative that is optimally cost-effective and ideally matches the interests and
capacities of owners and users.
For us, it is far better to ask the right questions instead of avoiding them. Questions
like: How should we approach the execution of these details? What distinguishes this
variant? What would it cost? The answers to each question can shed light on various
aspects of the task. And finally, it is worthwhile to cultivate a culture of discourse in
the interest of arriving at common solutions.
Management Control System
Over the years we have developed a management control system that monitors the
budget of a project. The systems works with construction index figures relating to
work sections.
Affordability
Affordable building costs guarantee affordable financing costs. If the building costs
could be limited to the necessary expenses and remain low, these savings can be
passed on to the residents. For instance: the approach to building an apartment
house is based on the identification of a group of homeowners whose members can
join forces to reduce the costs of construction.
Financial modelling
In order to achieve new ideas we also had to develop new financial models that fit
the projects, which otherwise wouldn’t been possible. One example is ‘pro scholare’
– a non-profit organization that provides rental payment guarantees to protect both
owners and tenants.
29
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Sustainable Architecture
TIPPS
U7
3. Realizing Shared Visions
Architecture and city development always entail a certain shaping intervention in the
lives of people. It is incumbent on those who are involved in the process of city
development to recognize and embrace the responsibility attached to the authority
invested in them. After all the decisions they make will lead to abiding states of
development that can have a major impact on people’s life.
Political will
All municipalities have a certain societal responsibility. The municipalities
themselves usually define the value of the fulfillment of their responsibility to the
public. Municipalities often have the power to shape planning laws. They can pass
project-specific development plans, issue calls to tender for development proposals
relating to property that was formerly not available for development and so on. We
have over 40 years of experience in municipal constructions and offer consulting
services for municipalities.
Aesthetic design
While the development of urban environments requires the possibility of securing
both commercial and socio-cultural interests, the challenges of modern city
development, especially in connection with these societal usage structures, can only
be met with the people who live in the city. City development depends on initiative
THE MAIN PURPOSE OF BUILDING IS
TO CREATE LIVING ENVIRONMENTS.
and liberty. The environment should meet the
interest of the people in order to achieve
identification.
Legal framework
Development in sustainable buildings always implies that the legal frame has to be
revised or new implementation needs to be developed. One example took place in a
traditional nursing centre where residents were not allowed in the kitchen. Working
together with the political authorities, we found a solution that permits the residents
of small communities to access in the kitchens.
4. Society and Architecture
Sustainable architecture intends to create living places wherein social integration
takes place. Sustainable urban planning includes human dignity, need for security,
public facilities and much more. This distinguishes the task of designing residential
buildings from other architectural tasks because all people need a place to live.
Other buildings are designed to certain functions. In case of residential buildings, the
focus is solely on people and their existential needs. Everyone needs a place to live,
and their homes should be as individual as the people who live inside.
We firmly believe that a comfortable and appropriate home is a potential source of
peace and inspiration and that this peace and inspiration are a part of the foundation
of a flourishing society.
Integrative
People have always lived in groups together. The more individual the members, the
more viable the group.
30
Safety aspects
We make a difference between “active” and “passive” safety aspects. One of the
passive measures is to create guidelines of sight and create visual references in
order to avoid unexpected and overwhelming contact. Through this disorientation of
the individual is avoided and therefore the risk for potential aggression is reduced.
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Sustainable Architecture
TIPPS
U7
Reducing the anonymity is one of the active measures. This increases the
responsibility of the residents, thus arise the willingness to actively participate in the
community. Participation is an important factor to ensure security of all. Measures
from the aspect of architecture design are, for instance, turning corridors into
welcoming meeting rooms and building communicative entranceways.
Public Spaces and encounters
The public space is an important factor to improve the communication of residents.
However, it doesn’t mean the purely physical encounters that are restricted to the
anonymous meeting of requirements. Dignity is preserved only when people
actually recognize the humanity of those they encounter. This is an area where
architecture can help. If the architect takes the dignity of people into consideration
and such people feel that they have been taken into consideration, then they will be
more inclined to respect their fellow human beings.
Urban development
If city developers succeed in increasing the attractiveness of the public spaces
around us, then people will be encouraged to spend more time outdoors. This
highlights the importance of paying careful attention to the appeal of the residual
space around the structures, so that people will experience them as pleasant, both
on account of and despite the weather. This task of offering people opportunities to
spend time outdoors usually requires relatively little structural expense. The creation
of a partially sheltered transition zone between indoor spaces and outdoor spaces,
for instance, offers a pleasant place to stay, come rain or shine.
5. The incentive systems for sustainable architecture
Motivation is also a crucial factor because while many people may readily grasp the
importance of sustainability, they will not necessarily feel capable of acting
accordingly when it comes to making the big and the little decisions. It is a matter of
supplying people with the motivational content they need to act in the manner that,
all things considered, is right.
Energy Contracting
The owner of the building is usually responsible for installing heating systems in
apartment buildings. However, the installation of heating systems is usually not
something that has a direct impact on the owner’s interests. Building owners who
invest in intelligent engineering systems face increased up-front costs and no
possibility of refinancing.
Therefore the model of energy contracting is used in the apartment buildings
designed by Frey Architekten. According to this model, an independent contractor is
responsible for the heating system of the building. This contractor also assumes
responsibility for procuring and supplying the required energy, which is then
invoiced exactly in proportion to the amount of heat supplied. The tenants therefore
no longer pay for consumed oil or gas, but instead according to certain kilowatt heat
rates for the heat they’ve actually used.
Public Private Partnership
The task of achieving common goals requires the introduction of incentives that tend
to unify the interests of those involved. Public private partnerships (PPPs) represent
one such model. One particular model includes the architect as building promoter.
Thus, the financial responsibilities become a personal commitment. As owners,
they’re responsible in finding the optimal solutions for top quality at low cost.
31
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Sustainable Architecture
TIPPS
U7
Shared Use
In urban centers with densely built-up areas, the combined and share uses are
feasible and meaningful. For example, the sharing of underground parking lots
saves investments and operating costs while increasing the usable floor space.
Added value through additional uses
Additional options can generate more value and are thus sustainable. For example,
roof surfaces can be rented for solar panels installations. For the owner, this results
in incomings and a better
weather protection against rain,
UV rays and heat. Other
elements can also be added
around a compact building envelope to give shape to the building and its setting.
Such elements may also serve various practical functions that enhance the
experience of those who spend time in or around the building.
IF WE ONLY DO WHAT WE ALREADY KNOW,
WE ONLY ACHIEVE WHAT WE HAVE ALREADY ACHIEVED.
Ownership
In our “motivation through ownership”-concept, the craftsman becomes owner in
the condominium he builds. Our approach is to involve the skilled craftsmen as
stakeholders. This gives us access to a tremendous amount of knowledge that is
relevant to the building process and that is not only free of charge, but saves money
and leads to higher quality work. This sort of optimization lowers the construction
costs and the re- financing costs to the point where the revenue drawn from the
rental payments suffices to cover the total investment and more.
Source/Quelle: http://www.freyarchitekten.com/en/sustainability/
Heidelberg Village in Germany will be part ofthe world's largest passive housing
complex when complete. Designed by Frey Architects
32
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Sustainable Architectural Visions
TIPPS
U7
009
Architects & Visions
Video-(TED)Tipps
Cameron Sinclair (Architecture for Humanity) at TED2006:
A call for open-source architecture
www.ted.com/talks/cameron_sinclair_on_open_source_architecture/
We founded "Architecture for Humanity" with $ 700 and a website. And Chris
somehow decided to give me $ 100,000. So why not so many people? Open source
architecture is the way. You have a diverse community of stakeholders - and we do
not just talk about inventors and designers, we also talk about the funding model.
My role is not that of a designer, it is a channel between the designer and the
humanitarian world. And what we need is something that replicates me globally
because I have not slept for seven years. Second, what will that be? Designers want
to respond to humanitarian crises, but they do not want any company in the West to
take their ideas and make profits from them. So Creative Commons designed the
Developing Nations license.
Designer Alastair Parvin / WikiHouse: Architecture for the People by the People
www.ted.com/talks/alastair_parvin_architecture_for_the_people_by_the_people
When we use the word "architect" or "designer", we usually mean a professional,
someone who is paid. We tend to think that these professionals will be the ones who
will help us solve the really big systemic design challenges like climate change,
urbanization and social inequality. That's our way of thinking. But it is wrong.
Jeanne Gang: Buildings that blend nature and city
www.ted.com/talks/jeanne_gang_buildings_that_blend_nature_and_city
I am a "relationship builder". When you think of Relationship Builder, don't you
automatically think of architects? Probably not. That's because most people think
architects design buildings and cities, but they actually build relationships because
cities are about people. There are places where people meet for all kinds of
exchanges. In addition, urban silhouettes are very specific urban habitats, with their
own insects, plants and animals, and even their own weather.
Marc Kushner at TED201 4: Why the buildings of the future will be shaped by ... you
www.ted.com/talks/marc_kushner_why_the_buildings_of_the_future_will_be_shaped
_by_you
"Architecture is not about math or zoning - it's about inner emotions," says Marc
Kushner. In a rousing - often witty - lecture, he zooms through the last thirty years of
architecture to show how the public, once separated, has become an integral part of
the design process. With the help of social media, the feedback reaches the architects
years before a building is created. The result? Architecture that will do more for us
than ever before.
33
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Organic Architecture
TIPPS
U7
010
Organic Architecture
Biomorphism
What is the charm of a hobbit cave? Why does it seem idyllic? Pastoral? Sublime?
Part of its attractiveness lies in the architectural fusion of habitable structure and
existing landscape. This approach summarizes the design aesthetics of organic
architecture. Among the most recent examples of organic art of the 21 st century are
the art of Andy Goldsworthy and the fashionable interior accessories that you can
find at Ikea orTarget. However, the design aesthetic of organic architecture emerged
from a special style of early 20th century art that sought to translate the forms found
in nature into unique works of art.
Since the beginning of the 20th century, artists have begun to accept the principles
of natural form as a particular aesthetic. The style gained ground in the 1930s when
artists rejected the inspiration of science and technology and the aesthetics of plastic
and metal that were seen in earlier forms of modern art. Instead, artists began to
engage with both inspiration in nature and the general trend of abstract art. Artists
who adopted the philosophy of biomorphism attempted to translate the principles of
natural form into their work by channeling the appearance of organic objects and
mimicking the flow of natural currents such as water and wind.
Video-Tipp:
Study.com/Ivy Roberts: The Impact of Organic Art on Architecture & Sculpture
study.com/academy/lesson/the-impact-of-organic-art-on-architecture-sculpture.html
34
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Organic Architecture
TIPPS
U7
011
Organic Architecture
Video-Tipps
Antti Lovag: Maison Bernard - The Approach
https://vimeo.com/101 275024
Antti Lovag has a unique vision of architecture. To underline
the unconventional dimension of his approach, he defines
himself as a "biologist". He does not care about architecture
as such, but focuses on humans and their habitat to create
a shell that encompasses human needs.
Friedensreich Hundertwasser – 3:40: Hundertwasser Art
Centre, Whangarei, New Zealand
https://www.youtube.com/watch?v=4PmONVJyVsI
Whangarei, the gateway to New Zealand's beautiful north,
has the opportunity to build the world's last authentic
Hundertwasser building. Designed by the artist in 1993 and
taken over by the Hundertwasser Non Profit Foundation in
Vienna, the iconic and unique building is nearing
completion.
Ross Lovegrove: Organic design inspired by Nature
www.ted.com/talks/ross_lovegrove_shares_organic_designs
Designer Ross Lovegrove explains his philosophy of
"grease-free" design and gives insight into some of his
exceptional products, including the Ty Nant drinking bottle
and the Go chair.
Javier Senoisiain: Organic Architecture/Bioarchitecture
spanish with engl. subtitles:
www.youtube.com/watch?v=_rCKzi3Cusc
spanish: vimeo.com/229654910 or vimeo.com/220527737
Javier Senosiain is a Mexican architect who is celebrated as
a key figure and discoverer of so-called organic
architecture. He is currently Professor of Architecture at the
National Autonomous University of Mexico (UNAM). Javier
Senosiain's architectural creations - such as the well-known
Shell House - have attracted both comment and
controversy. A house in Vista del Valle, north of Mexico City, sits on a hill overlooking
the city and is built in the shape of a shark. It is a reinforced concrete structure
coated with polyurethane and UV-resistant elastomeric sealant. Inside is a complex
labyrinth of rooms and interconnected carpet tunnels.
35
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Organic Architecture
TIPPS
U7
01 2
Organic Architecture
with Straw Bales & NAWAROs
Michel Post/Orio Architekten: Ontwerp Aardewoning Slijk-Ewijk
orioarchitecten.wordpress.com/201 7/06/30/ontwerp-aardewoning-slijk-ewijk-krijgtsteeds-meer-vorm/
Wood construction (CUT technique) with curved frames. StrohNatur
(www.strohnatur.at) has already proven that such organic constructions are also
suitable for straw bale construction and can also do without cement sprayed plaster
and steel, with the OrganiCut technology, see image series below:
36
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Organic Architecture
TIPPS
U7
Schilf/Reed: Reviving an Ancient Technique in the Iraq Marshlands /
©TraceyShelton2011 www.youtube.com/watch?v=VXjNTEVwxQA
With over 4,000 years of history, the ancient craft of the Mudhief or Reed House still
has its place of cultural, social and political importance in the Iraqi swamps, but
these ancient architectural creations are now known to few aging craftsmen, slowly
fading with time. Near the town of Chabyish on the edge of the central swamp, the
Nature Iraq team has launched a pilot project to revive this ancient style of
construction.
Marcel Kalberer and others have modernized the technology with reed, bamboo and
other fast-growing "canias". A sturdy shoring that can also be insulated with straw
bales, as Okambuva has proven: Taller de cañas y paja - Benidoleig 201 6
(www.youtube.com/watch?v=8mOL5e0LpXU)
37
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Sketchup Lesson - Construction Plan
TIPPS
U7
38
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S1 : Sketchup Lesson - Construction Plan
TIPPS
U7
Sketchup - Import Floor Plan:
www.youtube.com/watch?v=paXB5_tNTUA
39
INSTALLATION
40
Straw Bale
HOUSE
U7 – CONCEPT OF THE HOUSE
SESSION PLAN S2
U7
Session Plan U7-S2: House Installation
Objectives:
• Knowing about different heating systems, their advantages and
disadvantages (emissions, CO 2
, renewable, …)
• Knowing principles how to provide inner climate comfort in
winter and summer (cooling systems)
• Knowing principles of house infrastructure (electricity, water,
sewage) and know the specific requirements for straw bale houses
• Being aware of integration of other trades and service installation
of the house (plumbing, electrics, etc.)
Methods:
• Explanations
• Presentations
• Demonstrations
Theory
Practice
• different heating systems, its advantages and disadvantages
(emissions, CO 2
, renewable, …)
• basic rules of stove and chimney construction in complete
safety
• principles how to provide inner climate comfort in summer –
cooling systems
• necessity of air ventilation and know how to provide it
• principles of house installations (electricity, water, sewage,
ventilating system)
• techniques of fixing installations in straw walls
• regulations and norms
• good execution of installation (water, sewage, ventilating
system) – airtightness, water proof, wind proof, acoustic
insulation, fire protection
• integration of other trades and service installation of the
house (plumbing, electrics etc.)
• fixing sockets and cables in straw walls
• fixing heating tubes in straw walls
• fixing tubes for a wall heating
• provide air tightness (tape or mortar)
Organisation:
• Preparing the walls for demonstrations and installation materials
(2 days before)
Trainer:
Place:
Classroom
Workshop
Duration:
2 days
Equipment:
Beamer
Flip chart
Documents:
Info Sheets:
i1 - Heating and cooling
i2 - Ventilation
i3 - Installations
i4 - Health and safety
i5 - Stove and chimney
Trainer Sheet:
Tr1 Exercise – sketching the
house design
Text Sheets:
Tx1 Heating and cooling
Tx2 Ventilation
Tx3 Health and safety
Other document:
Project of installations
Presentations:
Slide show:
Ppt1 Installations
Photo documentation:
Wall Heating (good)
Electric Installation (good
and bad)
Evaluation:
Multiple Choice
41
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S2: House Installation
INFO S2
U7
42
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S2: House Installation
INFO S2
U7
01 3
Renewable Energy
and its forms
Currently, we cover our energy needs mainly from fossil energy sources. The energy
sources coal, oil and gas are extracted from the depths of the earth and used.
Originally, they were also created from biological sources, eg. by deposition of
algae. But the time of their creation is so long back (millions of years) that we can
not simply renew it.
Renewable energy sources are therefore those that are available again at least in the
temporal context of a human generation.
There are only a few sources of energy, these are our sun, our earth and also our
moon. Strictly speaking, the energy of the earth and the moon comes from the
formation of our solar system.
How much energy does the sun provide to the earth? The radiant power of the sun,
which strikes the earth, is the so-called solar constant and amounts to 1 367 W / m2.
Accordingly, the power constantly radiating onto the projected surface of the disc is
approximately 1 75 PW. This results in the energy of 5.5 * 1024 Joule over one year.
The total technical energy turnover of humans is currently around 500 EJ. This
means that approximately 10,000 times our technical energy requirement is radiated
by the sun.
The earth itself continuously supplies a heat output of approximately 63 mW / m2 to
its surface. This power is composed of roughly equal parts of radioactive decay
processes in the Earth's interior and stored in the earth's crust heat from the time of
Earth's origin. Summed over the entire earth's surface and a year, this gives the total
energy of about 1 * 1021 Joule, twice the total energy needs of people. In other
words, together with solar energy, our energy supply would be more than
sufficiently ensured.
43
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S2: House Installation
INFO S2
U7
01 4
How you plan a
Thermal Solar Energy Device
In order to plan a thermal solar system, the hot water demand and - in case of a
supporting heating system - also the heating demand must be determined. Basically,
the size of a solar thermal system depends on the desired solar coverage, but the
existing available space (roof, facade) and the static limits the space.
Another important parameter is the orientation of the system. For solar panels, roof
pitches between 20 ° and 60 ° are optimal, with shallower roofs (between 20 ° and 30
°) more favorable in summer and steeper roofs (50 ° to 60 °) in winter. (Austria Solar)
The guideline value for a 4-person household for domestic hot water heating is 1.5
m2 of collector surface per person with a solar storage volume of 0.3 to 0.4 m3 and
an annual average coverage of 50 to 60% (Lenz et al., 2010). For systems with
additional heating support, 8 to 1 6 m2 are dimensioned, combined with a water
storage tank of 1 ,000 liters.
In the case of energy-efficient buildings, 20 to 30% of the total heat demand can be
covered with a collector area of 10 to 20 m2 and a storage volume of 0.7 to 2.0 m3
(Lenz et al. 2010). Ideally, family houses in passive house quality can cover the total
heat demand of solar energy. Essential for an efficient operation are the quality of
the components (collector, heat exchanger) the optimal design and combination of
collector surface, storage (buffer storage, stratified storage tank), dimensioning of
the piping system.
Video-Tipp Thermal Solar: www.youtube.com/watch?v=I0FAqkfBLZ0, 1 :1 3 min
44
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S2: House Installation
INFO S2
U7
01 5
Selection and Dimensioning of a
suitable Biomass-Heating System
All forms of wood fuels - firewood, wood chips and pellets - can now be incinerated
(thanks to the technological developments of the past 20 years) with low emissions
and high efficiencies.
Which wood fuel or wood heating system is the right solution for a building depends
on various factors:
How big is the heat requirement?
Detached house, multi-family house, public institution etc.
New building or inventory
Space heating or central heating
What about the local availability of wood fuels?
How big is the need for comfort?
How much space, especially for fuel storage, is available?
Wood heating systems can be used in both new construction and renovation. The
only exclusion reason would be that there is no storage space available for the fuel
in the existing building and also that there is no possibility to build one
retrospectively. It should be noted that after thermal renovation of a building, the
heating load must be redetermined. The new biomass boiler can often turn out to be
much smaller in terms of its rated power.
45
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S2: House Installation
INFO S2
U7
01 6
Air-Water, Earth-Water, Water-
Water Heat Pumps
A heat pump is a work machine that raises heat from a lower to a higher
temperature level with the help of high-quality drive energy (electrical energy). Heat
is extracted from a heat source (eg, outside air, geothermal, groundwater, or waste
heat) and used to produce the desired indoor air temperature in a building.
The compression heat pump is the most common type. A refrigerant moves in a
cyclic process and repeatedly changes the state of aggregation between liquid and
gaseous:
1. In the evaporator, the refrigerant evaporates at low pressure, absorbing energy
from the heat source.
2. The compressor compresses the refrigerant, increasing pressure and
temperature. This requires high-quality (usually electrical) energy.
3. In the condenser (condenser) the refrigerant condenses again. Energy is
released via a heat exchanger to the heating water.
4. In a throttle body (expansion valve), the refrigerant is relieved to the (low)
outlet pressure, while it cools down.
Thereafter, the refrigerant is returned to the evaporator, the cycle starts from the
beginning.
46
Video-Tipp: "Die Funktionsweise des Wärmepumpenkreislaufs", 0:39 min.
/www.youtube.com/watch?v=orAjaSibepg
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S2: House Installation
INFO S2
U7
Heat recovery ventilation systems/units
1 ) inventer - decentralized ventilation directly
through at least two units mounted in the
wall. They work together, switching the
opposite direction. Heat recovery is done
through ceramic element.
2) De-centralized unit - small unit is usually
mounted in the room and serves to one – to
max.3 adjacent rooms. Volume of exchanged
air is max.100 m3/h (50 Pa).
3) Centralized unit - can be of different size, the heat recovers in one unit and than is
distributed in the whole house by tubes, or by cascading system, just through gaps
or holes with small vents.
4) Hot air solar panel AIR-INVENT
Works only on solar energy, pushing inside the warm air heated by sun in the solar
panel fixed on a façade.
017
(Controlled)
Room-Ventilation
Ventilation is needed to provide oxygen for metabolism and to dilute metabolic
pollutants (carbon dioxide and odour).
It is also used to assist in maintaining good indoor air quality by diluting and
removing other pollutants emitted within a space but should not be used as a
substitute for proper source control of pollutants.
Good ventilation is a major contributor to the health and comfort of building
occupants.
Recommended air exchange
nA=0,4h-1 according to EnEV 2002 and DIN4701 V-10
Possibilities to ventilate a house:
Opening windows and doors regularly
Through micro ventilation in windows
Automatic window ventilation
Extract ventilators
HRV (Heat recovery ventilating units)
Ventilation by opening windows increases the energy needed for heating or cooling,
however heat recovery ventilation can be used to mitigate the energy consumption.
47
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S2: House Installation
INFO S2
U7
018
Heat distributors: Mass Oven vs.
Wall- and Floor Heating Systems
Depending on the way in which the heat energy is distributed in the building and
brought into the room, different climatic conditions develop in the rooms.
A pleasant and healthy indoor climate depends on several factors:
• the room air temperature
• the temperature of the surrounding components (walls, floor, ceiling + furniture)
• the relative humidity
To feel comfortable in a room, the room air temperature should be about 20 ° C. If
the temperature of the surrounding areas is also at least 20 ° C, the air temperature
may even be lower than 20 ° C without making us feel uncomfortable. This increases
the relative humidity, which is much healthier for the respiratory tract and mucous
membranes.
With reference to a healthy indoor climate, it can be listed as follows:
48
1. Mass Oven
2. wall heating systems (under plaster)
3. Floor Heating
4. Open fireplace
5. radiator heating
6. Luftheizungsöfen
7. Air heating via Ventialation systems
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S2: House Installation
INFO S2
U7
019
Mass-(Tiled) Furnace:
Radiation from a large surface
It is possible to cover the heating demand of modern buildings with a relatively low
heating load (up to approx. 8 KW) exclusively with a mass furnace.
However, when planning such facilities, there are some important points to keep in
mind:
•The heating load should be determined relatively accurately in order to design the
dimensioning = performance of the furnace accordingly
•The space for storage of the determined amount of timber must
be planned
•The location of the furnace system is to be optimized with regard
to room layout and heat distribution
•The builders must be aware of the need to heat at least 1 -2 times
a day to maintain the appropriate temperature level
• Domestic hot water production should be electrically secured
with solar support
In addition, it is possible to introduce part of the heat generated in
the mass furnace via absorbers in a water circulation system, and
to provide heat energy to remote areas, or to support the hot water
system. In this case, the intervall for heating new wood in winter
can increase to 8 hours, synonymous with 3 times heating
throughout the day.
Picture left: Basic diagram ofmass furnace with absorber system
49
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S2: House Installation
INFO S2
U7
018
Types of chimney and Selection of
the matching fireplaces
The chimney is required for the safe discharge of flue gases from fireplaces inside
the building. For this, the chimney must fulfill primarily 3 tasks:
1. Ensure that all exhaust gases are permanently discharged safely into the
atmosphere (gas-tightness, resistance to temperature and acids!)
Especially with vacuum systems additionally:
2. Apply so much force = delivery pressure that all resistances in the furnace are
overcome
3. Aspirate the air required for combustion
There are many different types of chimneys: brick edged, bricked round, made of
metal or ceramic, single-walled or multi-walled, 2- or 3-shell, with or without
insulation, ...
Each design has both advantages and disadvantages and must ultimately be
evaluated according to the following criteria: insulation, mass of the inner shell,
smoothness of the inner wall.
Hints for choosing the right chimney:
50
•The hotter the exhaust gases from the stove go into the chimney, the easier the
function of the stove will forgive a poorly insulated or too high chimney.
•The better the efficiency of the fireplace, the colder its exhaust gases and the
more important are good insulation, low mass and suitable cross-section.
•The larger the amount of flue gas in the fireplace (for example, in very high
power appliances), the larger the cross section of the chimney must be.
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S2: House Installation
INFO S2
U7
019
Electrical installations:
take care of air-tightness
Electric cables are laid either in specially designed installation levels (for example
3.5 cm Heraklith BM) or in armored pipes on the surface of the straw bale wall. They
can be fastened with a clamp made of 3 mm copper wire which is inserted into the
bales of straw approx. 10-1 5 cm deep.
When the armored pipes are plastered over, they disappear completely into the
plaster level (loam/clay), which also guarantees fire protection.
Only flush-mounted boxes (for sockets and light switches) completely break through
the plaster level, which is why additional air-tightness must be ensured here.
Sockets can be installed airtight, if
under the flush box a continuous layer of plaster is available (to the straw
something hollow (alligator, electric fox, kitchen knife), lubricate plaster into the
recess and put the box in the still damp plaster.To guarantee fast durability, the
box can also be attached with a quick cement.
the flush-mounted box is mounted on a Fermacell (cellulose-reinforced gypsum
plate) or wood plate piece (screwed on) and this is then plastered over, the plate
can be provided on the back with a wooden skewer, so they can be better fixed on
the straw wall holds (skewer also screw).
external penetrations (such as façade or garden lighting are best laid through the
bales during filling, but holes can subsequently be drilled in the bales afterwards)
If the pipes penetrate the plaster layer, they must be provided with cuffs
(adhesive tapes) for the air tightness. These must not stick to the straw surface
but to the cable or the armored tube, for which the airtight tape should be
plastered over, the same applies to water connections in the garden.
51
REPAIRS
& Maintenance
52
U7 – CONCEPT OF THE HOUSE
SESSION PLAN S3
U7
Session Plan U7-S3: Repairs and Maintenance
Objectives:
• Awareness of most common faults of straw bale construction,
their damage and cause
• Knowing steps and principles how to repair most common faults
and damage of straw bale construction
• Awareness of different life duration of the construction parts and
their maintenance intervals
• Repairing common damages of the house
Methods:
• Explanations
• Presentations
• Demonstrations
Trainer:
Place:
Classroom
Workshop
Duration:
1 day
Equipment:
Beamer
Flip chart
Theory
• Most common faults of straw bale construction, their
damage and cause
• Steps and principles how to repair most common faults and
damage of straw bale construction
• Different life duration of the construction parts and their
maintenance intervals
• How to repair common damage of the house
Documents:
Info Sheets:
i1 – Damage
Text Sheets:
Tx1 Damage
Tx2 Repair and
Maintenance
Presentations:
Slide Show:
Ppt1 Damage
Evaluation:
Multiple Choice
• Repair and maintenance
Practice
Organisation:
53
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S3: Repairs and Maintenance
INFO S3
U7
54
U7 – CONCEPT OF THE HOUSE
Session Plan U7-S3: Repairs and Maintenance
INFO S3
U7
55
STEP – Straw Bale Training for European Professionals
UNIT 7 – Concept for the House (201 7)
Editor/Tipps: Herbert Gruber (ASBN)
Coworkers: Helmuth Santler, Karsten Bäsmann, Zuzana
Kierulfova, with texts from: 30X40 Design Workshop, TED,
TU Vienna - e-genius (Haustechnik), Buch der Synergie
(buch-der-synergie.de). Design: Herbert Gruber (HG);
Fotos: HG, Wikimedia, Pexels, Sol Power: Prestel (U4);
Illustrationen/Icons: Michael Howlett (SBUK)
Dieses Handbuch bases on the
Handbook of the Leonardo-
Group STEP (201 5)
56