The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.
Flat warm roof construction detail.
Construction studies drawing detail showing how to draw a flat roof warm deck construction detail to a scale of 1 10 with a short introduction highlighting t.
In case of warm roofs they have an insulation above the roof deck in this way it keeps the deck warm.
Flat roof types.
Warm roof systems.
Warm cold and inverted.
Depending on the type of roof you are considering here s some technical details you may find useful.
Flat roof construction can come in the form of a warm roof or cold roof depending on the requirement of the owner and architect as they relate to the building regulations regarding heat loss and insulation.
Types of flat roof construction warm and cold flat roofs.
Joists are placed on edge spaced at 400 600mm centres supported by external and internal load bearing walls.
A flat roof must be strong durable and stable throughout its lifetime.
It must provide adequate protection against the elements keeping the buildings structure and interior dry.
The construction of the flat roof is similar to that of the timber upper floor.
In the case of a flat roof insulation is usually in the form of either a rigid board above the deck or a fibrous quilt immediately above the ceiling depending on the type of roof construction.
They can be built up from profiled metal decks as the insulation selected would provide enough rigidity to span the open sections of such decks.
Details both in 2d and 3d to give a clear understanding.
Having a manual for warm flat roof construction with details and a summary of rules to follow helps.
This usually keeps the deck warm.
Warm roof build ups can be installed on most modern construction material types such as concrete timber and timber based sheets.
It is the most acceptable type of construction for domestic possessions and belongings as it avoids the need for aeration of the roof construction.
Throughout the course of the year the roof deck and all below it is kept at a temperature close to that of the inside of the building therefore the roof structure is protected from extremes of hot and cold lessening the.
There are three recognised designs of flat roof construction.
This is placed over the.
A roof is defined in bs 6229 as a flat roof if it has a pitch of 10 degrees or less.
Flat roof design guide.
For additional stability you can also use steel joists that are built into one or both of the walls.
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.
