Using Thin-R Sarking XT/SK (T&G) on sloped roof areas can provide the most efficient U-values with minimal intrusion into valuable living space. Warm roof construction is a particularly effective way of insulating complex roofs.
Insulating above the roof timbers ensures that the structure is kept at, or near the internal environmental conditions, reducing thermal stress and condensation risk. XT/SK is a robust T&G engineered jointed board that achieves excellent U-values at minimal thicknesses.
U-Value calculations to EN ISO:6946
XT/SK Insulation for Pitched Roofs
Rafters taken at 600mm centres
|Sarking Over (mm)||60mm (Between rafters)||75mm (Between rafters)||100mm (Between rafters)|
|3rd Layer @ 40mm||0.15||0.14||0.12|
|3rd layer @ 40mm||0.13||0.12||0.11|
|3rd Layer @ 40mm||0.11||0.11||0.10|
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