Permo Sec Underlay

Features • Can be laid over rigid insulation or timber boarding. • Suitable for roof pitches over 3°. • Will cover any irregularities within the roof deck, that could de-form the metal roof covering. • Provides a fully waterproof secondary barrier to moisture penetration. • Fully vapour permeableatures • With an acoustic value of 8db, Permo® Sec will help to reduce the transmission of external structure borne sounds e.g. rain hammer. • Will not bond with the under side of the outer covering in hot conditions. • Allows movement between the outer covering and the structural deck.


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