XO/SK (T&G) is an engineered tongue and grooved external roof insulation system with robust facings which meets the passive U-value of 0.15 W/m2K.
Using XO/SK improves detailing, speeds up the installation process and provides a uniform plane to detail more effectively. Creating a warm roof reduces the normal amount of junctions prone to thermal bridging greatly improving the thermal performance of the roof.
U-Value calculations to EN ISO:6946
Sarking Warm Roof Construction
Rafters taken at 400mm centres
U-Value | Over rafters | Between rafters |
---|---|---|
0.15 | 125mm | - |
0.15 | 75mm | 75mm |
0.11 | 100mm | 100mm |
XtroLiner is a superior performance insulation with a lambda value of 0.021 Wm/K and a Euroclass C fire classification. It is faced with a robust PIR aluminium foil and is available with engineered jointing to deliver improved Thermal Bridging detailing.
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