Product Code: KU0065
Walling 50 is a vapour barrier membrane and vapour control layer for use on the warm side of the insulation. It prevents large volumes of water vapour entering from the interior, particularly during the drying-out period.
Wallint 50 is an air barrier and vapour control layer for use on the warm side of the insulation. It has a vapour resistance of 250MNsg, meeting the requirements of BS 9250 (Code of Practice for the design of the airtightness of ceilings in pitched roofs). The air barrier and vapour control layer prevents large volumes of water vapour from entering a construction from the interior, particularly during the drying-out period, whilst providing additional support for insulation boards or quilts.
For clarification consideration must be given to the intended use and height of the building based on the fact that the reaction to fire performance of the product is Class E in accordance with EN 13501-1. For further information contact your Principle Designer, the relevant Building Control Authority or the relevant guidance document such as Approved Document B for England.
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