Thin-R Partial Fill Cavity Wall Plus XT/CWP (T&G) builds to a system thanks to it's engineered tongue and grooved joints and pre-formed corners, ensuring insulation continuity and minimisation of thermal bridging.
XT/CWP (T&G) is the best solution when building traditional masonry walls to the highest thermal standards whilst maintaining a residual cavity, offering excellent protection from wind driven rain. The lower Lambda of 0.021 W/mK improves U-values and meets Zero Carbon standards, proving an excellent choice for passive and low energy builds.
Xtratherm also supply cavity closers suitable for use for Cavity Wall Plus. Click here for more information.
U-Value calculations to EN ISO:6946
XT/CWP Cavity Wall Partial Fill
|Block Lambda||40mm||50mm||60mm||70mm||80mm||100 mm|
U-Values achieved with additional Xtratherm XT/TL Thermal Liner
|Thickness||Block Lambda||Original U-Value Table 1||Improved U-Value with XT/TL|
* XT/TL 50mm Thermal Liner consisting of 38mm PIR and 12.5mm plasterboard on adhesive dabs
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