It can be difficult to provide a very high level of thermal performance in these roof types whether you re looking to insulate at joist level for a cold roof where joist depth can be an issue or above the roof deck where overall roof height may need to be considered if a warm roof construction is desired.
Warm deck roof construction details.
Warm roofs have an insulation layer above the roof deck.
Depending on the type of roof you are considering here s some technical details you may find useful.
The insulation is immediately below the waterproofing layer.
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.
The warm deck roof design is the modern method for flat roof construction and is preferred wherever this option is possible.
The vapour control layer is above the decking but below the insulation.
In a warm deck roof the insulation is positioned above the structural deck and no ventilation is required.
This video will demonstrate how to install a cure it grp waterproofing system in a warm roof build up.
So called because the insulating layer is located above the roof rafters and between the structural supports a warm deck roof results in a temperature for the roof and loft area that is consistent with the rest of the.
In case of warm roofs they have an insulation above the roof deck in this way it keeps.
It is the most acceptable type of construction for domestic possessions and belongings as it avoids the need for aeration of the roof construction.
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.
This usually keeps the deck warm.
This is placed over the.
The insulation can be adhered mechanically fixed or loose laid.
In a warm flat roof construction the insulation is positioned above the structural deck and no ventilation is required.
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.