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Technical
Timber and Structure
Wherever possible The Timber Conservatory Company sources the timber used in the
construction of our conservatories, lantern roofs and sliding sash windows from
responsibly managed forests. Selected sections are used for a combination of
strength, durability, machining flexibility and an ability to accept a wide
range of finishes.
Selected timber sections are used for a combination of strength, durability,
machining flexibility and an ability to accept a wide range of finishes. This
hardwood timber is naturally resistant to wood rot and fungal attack and the
natural oils present in the timber make it resistant to moisture penetration.
• Specification conformance – Class 1 hardwood to BS1186*
• Framework dimensions – standard depth 70mm with 68mm wide mullion and
projecting storm proof casements. Where flush walling is specified incorporating
shot-in casements (often required for listed buildings) a 95mm deep framework
with 68mm mullion is used
• Roof wind and snow loading – satisfies BS6399*
Using a matrix of sizes underwritten by our structural engineer every roof is
designed to meet current British standards. Structural tie-bars to be included
where necessary and if building regulation approval is required full structural
calculations can be supplied at extra cost. Flat roof areas and ridges are to be
finished with plain lead work.
Roof cappings
• Low maintenance, polyester powder coated aluminium weather cappings as standard
– in white, brown, or grey. (other colour options available at extra cost)
• Matching Cast aluminium polyester powder coated finials and crests are
available on most roof designs
Decorative finishes
• Paint finishes: The timber is treated with three coats of micro-porous paint or
two coats of natural stain (factory spray applied) providing a fully finished
product.
• Colours:
Choice of 6 standard colours or 5 stains with other options available at extra
cost
• All stains, paint primers and finishes are micro-porous allowing the timber to
breathe naturally.
Opening Windows, Doors and Fittings
• High security espagnolette catches with lockable handles
• Brass coloured finish. Also available in black, white and polished chrome
• Door security meets BS644*
• Window security has been tested to BS7950*
• Weather proofing using a specialist rubber double gasket system
• Weather resistance – tested to BS6375* Class C. Windows have been tested to
BS6375* Part 1, 1989 and BS5368* Part 1, 1976
• Shoot bolt security locking system is standard on side hung casements and small
fanlights
• Part L compliant – test report available
Rainwater and Drainage Standard specification
• Ogee profile PVCu guttering and down pipes as standard
• Extruded aluminium guttering and down pipes option available at extra cost.
• Colours – white or black (other options available at extra cost)
Opening Roof Vents
• Powder coated aluminium opening roof vent using a dry glazed system with
gaskets or a low-profile aluminium clad timber opening roof vent.
• Manual operation using worm gear system and roof vent pole handle
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