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Krašna, E. 2006. Stroškovna analiza izbire gradbenih materialov pri gradnji stanovanjskega objekta
Dipl. nal.-VSŠ. Ljubljana, UL, FGG, Odd. za gradbeništvo, Operativna smer.
III
BIBLIOGRAPHY, DOCUMENTATION AND EXTRACT
UDK: 691.003 (093.2)
Author:
Supervisor:
Title:
Notes:
Erik Krašna
Assist. Prof. Jana Šelih
The cost analysis of selection building materials for
residential building construction
103 p., 41 tab., 7 fig.
Key words: bill of quantities, price analysis, construction physics
Abstract
The thesis deals with cost-based selection of construction materials, illustrated on the example
of a single-storey house to be built in Gabarje. A bill of quantites is prepared for every
thickness and type of building material. The calculation is based on the data related to the
origin of material, the purchase price and the price of the material supplied to the site for the
materials selected. A pro forma invoice that includes the cost of materials, labour and
transport is prepared for every item.
Three different load-bearing materials (cast-in-situ concrete, brick wall and foam concrete
brick wall) and two different insulation materials are selected. The analysed envelope system
consists of load-bearing wall and insulation layer, where the thickness of both layers is
varying. All feasible envelope systems are analysed by using the software that complies to the
Slovenian standard for building energy efficiency, and yields as result the building's annual
heat consumption and heat resistances of the walls.
The break-even analysis was carried out for all envelope systems considered. The system
resulting in lowest initial (construction) cost that also meets the regulatory requirements was
selected as the reference case. Three differenty types of fuel, namely wood, natural gas and oil
were considered in the analysis. Assuming that the price of fuel does not change in the future,
the analysis results show that the fastest return of initial investment into additional thermal
insulation is achieved for the case of foam concrete brick walls.