Permavent METAL
by Permavent
Permavent METAL uses the very high production methods of Permavent MAX as base layer to which a spiral layer of polypropylene mesh is melt bonded. It is specially designed as a moisture and seperation layer for all types of standing seam and metal roofs. It is designed to be laid on top of rigid insulation or timber or plywood boarding and is clean, safe and lightweight.
Its high tech design is ideal for roof pitches over 3o and will mask irregularities such as board joins that could deform the metal roof covering. Permavent METAL is easy to install in and allows the metal roof to be installed in the usual manner.
Permavent METAL is fully vapour-permeable, and provides a strong, durable and waterproof barrier.
Specification Details for Permavent METAL (Damp-Proof Membranes)
Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Permavent is consulted before specifying.
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| Uniclass (?) | Pr_25_57_21 Damp-proof courses and cavity trays | |
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