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Do I require a vapour control layer with Thermaroof TR31?

CONTROL require thermaroof tr31 Vapour
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Do I require a vapour control layer with Thermaroof TR31?

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No. There is no need for a separate vapour control barrier or layer. When installing Kingspan Thermaroof TR31 over timber joists, we recommend using a non setting sealant to create a complete seal with the foil facing to the underside of the TR31.

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