Warm Flat Roof Construction Details

Flat pitched cold warm roofs flat roofs.

Warm flat roof construction details.

Pitched or sloping roof. 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. The construction of the flat roof is similar to that of the timber upper floor. Trada and approved document part a give guidance on sizes of joists for flat roofs relating to spans and loading.

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. In a warm roof construction the principal thermal insulation layer is located above the structural decking resulting in the structural deck and support structure being at a temperature close to that of the interior of the building. A warm flat roof is formed by placing a layer of insulation over the top of the roof structure. Due to the insulation being over the top of the roof the timber structure beneath is warm which is why the term warm roof is formed.

A pitched or slanted roof has a terrain of at least 15 but it is often much more. If you re worried about the security of your domestic extensions whether they be garages sheds. Joists are placed on edge spaced at 400 600mm centres supported by external and internal load bearing walls.