Download Product Brochure [ PDF 1 MB ] - Raven Roofing Supplies

ROOF TILES
CI/SfB (47) Ng2
June 2004
Goxhill Hand Made Plain Tile

Goxhill
Hand Made Plain Tile
Hand made clay roof tiles have created many of the finest
and most distinctive roofs in Britain today. For over 300 years,
they have provided a richness of colour and texture which
becomes more attractive with age. Accessories such as feature
tiles for vertical applications and elements such as eyebrow
dormers add to the beauty of buildings whose roofs are
frequently seen as the focal point of their design.
Made for decades from our own reserves of natural alluvial
clay from the banks of the river Humber, every Goxhill Hand
Made Plain Tile is unique, with small variations providing
finished roofs of individual charm and character. All tiles are
fired in the most efficient kilns available, to ensure that quality,
durability and appearance are better today than ever, with a
standard guarantee of 60 years.
Facing page: Baronsmead, Dorking, Surrey (Goxhill tiles in Brindle Mix).
Winner – Clay Roof Tile Council Awards – Best Use of Clay in a Residential Refurbishment.
2

Product data
low res
96 Dark Red 97 Dark Chestnut 98 Light Red 99 Autumn Brown
Brindle Mix
There is now widespread appreciation of the considerable
added value that plain tile roofs in natural clay can provide.
The incorporation of traditional detailing elements such as
junctions with Sussex cutting or Soldier courses, “Winchester
cutting” at verges, and features such as eyebrow dormers and
turrets illustrates just why the visual identity of plain tiled
buildings is now so highly valued by designers.
Some of today’s best contemporary building designs owe much to the
added scope that clay plain tiles have provided. In part, this is due to
their use for vertical as well as roof tiling. Originally used to provide a
lightweight means of waterproofing the upper floors of timber framed
buildings, vertical cladding is now largely used for its decorative qualities.
Formerly associated with the south east and counties such as Essex in
particular, it is now spreading due to the greater prominence of smaller
developments of distinctive properties.
The use of hand made feature tiles in shapes, such as club pattern and
internal or external angles adds distinguishing finishing touches to both
intricate and simple designs.
Goxhill Hand Made Plain Tiles are available in four standard sandfaced
colours, with the option of the “Brindle Mix” achieved by mixing colours.
Sandtoft also has an extensive range of decorative ridges and finials,
to give any roof an added touch of individuality.
Appearance
Small variations between the tiles and the rich colouring of natural clay
provide roofs of great beauty, which become even more attractive as
they mature. Goxhill Hand Made Plain Tiles are available in four colours
as shown above. Colours can be mixed to create a weathered effect.
Brindle mix is achieved by mixing Autumn Brown (50%), Dark Chestnut
(30%) and Dark Red 20%).
Composition
Sandtoft clay tiles are manufactured from naturally occurring alluvial
clay deposits which are processed, extruded or pressed and fired at
high temperatures.
Authority and testing
Sandtoft Goxhill Hand Made Plain Tiles are manufactured in accordance
with the requirements of BS EN 1304: 1998.
Flexural strength
Tiles are tested in accordance with the test method for flexural strength
given in BS EN 538: 1994 and achieve results higher than the minimum
recommended strength requirement.
Impermeability
Tiles are tested in accordance with Test Method 2 for impermeability
given in BS EN 539-1: 1994 and achieve Category 1 classification.
Frost resistance
Tiles are tested in accordance with Test Method D for frost resistance
given in BS EN 539-2: 1998 and are deemed suitable for use in
geographical Zone D.
All Sandtoft clay tiles are manufactured under a Quality Management
system which is certified to comply with BS EN ISO 9001. Sandtoft clay
tiles will also meet the relevant performance requirements of BS 5534:
2003, the new British Standard for Slating and Tiling.
Environment
The manufacture of Sandtoft clay tiles is independently certified to
comply with ISO 14001: Environmental Management Systems. This
ensures that clay tiles are processed by the most energy-efficient
means possible. The raw material is excavated from local reserves.
Old clay pits are restored as wetland habitats, two of which are now
registered Sites of Special Scientific Interest (SSSI).
Guarantee
BS 7543, the British Standard guide to ‘Durability of buildings and
building elements, products and components’ gives the normal
design life of buildings to be a minimum of 60 years. Sandtoft clay
tiles are guaranteed to remain durable for at least 60 years, subject
to the standard terms of the guarantee. All Sandtoft roof tiles are
included in the National Federation of Roofing Contractors’
Co-partnership Guarantee Scheme which offers a 10 year guarantee
for materials and workmanship along with insolvency insurance cover.
4

A typical roof and dormer incorporating
Goxhill Dark Chestnut feature tiles

Technical data
Roofing
Vertical cladding
Roof pitch (minimum) 40˚ –
Headlap (minimum) 65 mm 38 mm
Gauge (maximum) 100 mm 114 mm
Size of tile (overall) 265 x 165 mm 265 x 165 mm
Effective width 165 mm 165 mm
Covering capacity (net) 60 tiles per m 2 53 tiles per m 2
Weight per 1000 (approx.) 1.12 tonnes 1.12 tonnes
Weight as laid (approx.) 68 kg per m 2 60 kg per m 2
Batten length at
max. gauge (net) 10 m per m 2 8.7 m per m 2
Batten size
Nails for tiles
38 x 25 mm (for rafter spacings
up to 600 mm centres)
38 x 3.35 mm aluminium alloy
Notes: Clay tiles are subject to small variations in size because of drying
and firing shrinkage in the manufacturing process.
For projects where the rafters are below the minimum recommended roof
pitch, please contact Sandtoft Technical Department for advice.
6

Goxhill fittings and accessories
Half round ridge
Invisivent
Valley tile
Arris hip
External angles
Bonnet hip
(also available)
Internal angles
(also available)
Finial blockend
LH tile-and-a-half- tile*
* In alternate courses
Standard tile*
Eaves /tops tile Tile-and-a-half Club pattern
feature tile
Club pattern
feature tops tile
Club pattern feature
tile-and-a-half tile
8

low res

Specifying Goxhill Plain Tiles
This brochure forms part of a package,
designed to offer architects, housebuilders
and contractors everything they need to
know to design and install a roof with
Sandtoft Goxhill Handmade Plain Tiles.
If you require further technical information,
please photocopy this page, indicate the
information you require below, and fax back
to Sandtoft on (01427) 871222. Alternatively,
visit our website at: www.sandtoft.com
If you would like us to prepare a roof
specification for an ongoing project, please
fill out and return the details below, marked
‘Sandtoft/NBS design specification brief.’
Alternatively, if you would like to complete a
specification yourself, a full set of clauses for
each Sandtoft tile range is available at:
www.sandtoft.com
1. Personal details (please complete)
Name
Position
Company
Address
3. Sandtoft/NBS design specification brief
Type(s) of tiling
Project reference (e.g. extension to dwelling):
Base (e.g. trussed rafters at 600 mm centres):
Rafter pitch
Lay over (e.g. trussed rafters, sarking, counterbattens)
Tile type (e.g. Goxhill Plain Tiles)
Tile colour
Vertical tiling (e.g. to gable walls)
Base (e.g. blockwork, vertical battens at 450mm
centres)
Ventilated eaves
Fascia ventilator grilles Rafter ventilator trays
Verges
Bedded undercloak Nailed undercloak
Cloaked verge
Dry verge
Roof slope ventilators
Warm roof
Cold roof
Position (e.g. high level, eaves level)
Roof slope terminals
Ventilator tile type
To vent (e.g. soil and vent pipes, kitchen ventilation
pipes)
General
Roof window
Change of roof pitch
Side abutment
Top edge abutment
Snow guards
Top edge ventilated abutment
Junction (lead saddle) (e.g. junction of ridge with
hip, junction of ridge with valley, junction of ridge
with abutment, top junction of two valley gutters)
Sundry accessories (e.g. pipe flashing)
Tel
Fax
E-mail
Are you a self builder? Yes No
2. Further technical information
Technical details (please tick format required):
hard copy format
fax
email CAD file
cd-rom
CAD drawings (please tick format required):
hard copy format
email CAD file
cd-rom
Wind loadings + questionnaire
Installation instructions
Any other requirements (please state):
Hips
Mortar bedded hip
Mortar bedded and nailed hip
Mortar bedded security hip
Hip tile (e.g. segmental ridge, angle ridge, bonnet hip,
arris hip)
Colour
Valley
GRP valley
Lead valley
Concrete trough valley
Purpose made valley tile
Ridge
Dry ventilated ridge Mortar bedded ridge
Mortar bedded and nailed ridge
Mortar bedded security ridge
Mortar bedded mono ridge
Ridge tile (e.g. segmental ridge, angle ridge):
Mechanical fixing
To enable us to calculate tile fixing (i.e. nail/clipping)
requirements please supply the following additional
information:
Pitch
Duo or mono pitch roof
Building height to eaves
Building width
Postcode
Ridge tile colour:
11

Performance
Mechanical fixing
Plain tiles should have a minimum mechanical fixings in accordance
with the following:
At verges, abutments and either side of hips and valleys, the end tile
in each course should be twice nailed.
At eaves and top edges, each tile in two courses of tiles should be
twice nailed.
For rafter pitches below 60°, each tile in every fifth course should be
twice nailed.
For rafter pitches of 60° and above, each tile should be twice nailed.
In addition, a wind loading calculation should be carried out in
accordance with BS 5534 to determine any additional fixing which
may be necessary.
Detailed wind loading and mechanical fixing specifications are
available on request from the Sandtoft Technical Department.
Further information and guidance is available on request.
Effects of environmental and other factors
Sandtoft clay roof tiles are highly durable and resistant to a wide
range of environmental factors.
Further information is available on request from the Environmental
Department.
Roof ventilation
Roofs should be designed to avoid harmful condensation and be
properly ventilated to comply with BS 5250, ‘Code of Practice for the
control of condensation in buildings.’ Further information is given in
the ‘Roof ventilation’ brochure.
Detailed roofspace ventilation specifications are available on request
from the Technical Department.
Health and Safety
Technical data on Sandtoft roof tiles to comply with the Health and
Safety Executive – Control of Substances Hazardous to Health (COSHH)
Regulations is available on request from the Technical Department.
Sitework
Sandtoft roof tiles should be laid and fixed to comply with BS 5534,
‘Code of Practice for Slating and Tiling’ and BS 8000: Part 6, ‘Code
of Practice for Workmanship on Building Sites – Slating and Tiling’.
Further information on mechanical fixing is given in the ‘Sandtoft
Wind Loading and Mechanical Fixing’ brochure.
Maintenance
Sandtoft clay roof tiles do not normally require any maintenance
during their design life. In areas where lichen, mosses and wind
blown vegetation, e.g. pine needles etc. are a risk, it is prudent to
avoid blockage of the tile rainwater channels.
Supply
Packaging
Sandtoft clay roof tiles are supplied polythene wrapped on pallets.
Ordering
Orders for collection or delivery of Sandtoft products should clearly
state: tile profile, fittings, accessories, all quantities, colour, site
address, any specific requirements.
To order Goxhill Hand Made Plain Tiles contact:
Sandtoft Broomfleet Works
Tel 01430 426200
Fax 01430 426229
Technical services
Sandtoft Technical Department offers specialist advice
and support to assist the roof designer, stockist and contractor.
A range of services is available, including mechanical fixing
recommendations, detailed specification clauses based on the
National Building Specification (NBS) format, CAD detailing and
material estimates, as well as general advice on all aspects of
pitched roofing.
Please contact the Sandtoft Technical Department on 01427 871270
or visit www.sandtoft.com for more information, such as CAD details
in .dwg or .dxf format.
ROOF TILES
Sandtoft Roof Tiles Limited, Sandtoft, Doncaster, South Yorkshire DN8 5SY
Tel 01427 871200 Fax 01427 871222 E-mail info@sandtoft.co.uk
www.sandtoft.com
Tile colours shown in this brochure are as accurate as allowed for by the printing process.
Tiles should be taken from several pallets and mixed at random on the roof. Actual samples
are available on request.
At Sandtoft we are continually innovating and improving the product range. We reserve the right
to change product specifications without notice. Please contact customer services for the latest
information or try www.sandtoft.com