It must provide adequate protection against the elements keeping the buildings structure and interior dry.
Warm flat roof eaves detail.
This appendix contains common details for flat roofs and balconies.
A roof is defined in bs 6229 as a flat roof if it has a pitch of 10 degrees or less.
Construction details for flat roofs and balconies.
Flat roof types.
Eaves detail the eaves detail shows where the roof members and coverings meet the wall of the dwelling.
The wallplate is secured to the internal wall separated by dpc.
Warm flat roofs inverted flat roofs green flat roofs.
Warm roof systems benefit from the insulation sitting above the deck.
Flat roof u value 0 18 w m2k 2 warm deck flat roof the type of insulation for this is usually of a rigid type and the thickness will vary depending on the manufacturer s specifications.
Additional construction details drawings.
The flat roof shown above shows warm deck roof construction.
The insulation can be adhered mechanically fixed or loose laid.
The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.
Warm roof to coated metal drip edge.
Warm roof to parapet outlet.
Warm roof to outlet with sump gutter.
As well as the small selection of roof detail drawings shown here many of the building notes have a related construction detail drawing with specific dimensions eg rafter sizes spans insulations types for purchase with the building specifications.
This enables the temperature of the structure and the deck to be kept close to the temperature of the inside of the building hence warm.
That will help you remember certain factors and details to build the best possible flat roof.
Flat roof details and information relating to insulating a flat roof.
Having a manual for warm flat roof construction with details and a summary of rules to follow helps.
A flat roof must be strong durable and stable throughout its lifetime.
Warm roof to outlet.
Warm roof to hot service penetration.
The vapour control layer is above the decking but below the insulation.
The insulation is immediately below the waterproofing layer.
Warm roof timber deck.
This is placed over the.
Details both in 2d and 3d to give a clear understanding.
Further information on specific waterproofing systems may be obtained from bs 8217.
Warm roof to cable duct.
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The cavity is closed with a proprietary cavity closer.
The following sketches show examples of typical common construction details and illustrate general principles.
A warm flat roof or a built up roof bur is one where all the insulation is above the joists deck making them part of the warm fabric of the building.
