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Do I require a vapour control layer with Kingspan Thermaroof TR31?

April 26, 2017CONTROL kingspan require thermaroof tr31 Vapour

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Do I require a vapour control layer with Kingspan Thermaroof TR31?

1 Answer

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By utilising the water vapour resistant characteristics of the board and combining these with the use of a suitable vapour proof non-setting gun-grade mastic sealant applied to the upper surface of all supporting timbers, a perfectly adequate water vapour control layer can be formed.