Another key advantage of specifying a pitched roof is the ability to provide a very high level of thermal performance in these roof types whether you re looking to insulate at joist ceiling level for a cold pitched roof or at rafter level if a living area within a warm roof construction is desired.
Pitched roof internal insulation.
Insulating a sloping roof it s worth insulating the sloping insides of a pitched roof in order to conserve heat if the space is to be used for anything except simple storage.
On the other hand if you are planning on using your loft space then you should probably opt for a warm pitched roof construction where the insulation is placed over under or between the roof rafters.
Pitched roof with internal insulation between rafters solution description.
λ 0 037 to 0 040 w m c excellent thermal lag excellent soundproofing compression resistance at 10.
Thermal and acoustic insulation of pitched roofs with expanded insulation corkboard between rafters.
110 to 120 kg m3 thermal conductivity.