Vapour Permeable Membranes (VPM)

The ideal vapour-permeable timber frame wall membrane.

Water resistant (W1) and lightweight vapour permeable wall 
membrane, suitable for use as the secondary protection layer 
in SFS, timber, CLT and masonry wall systems. Membrane 
should be fixed directly over supporting sheathing board, 
insulation or blockwork.

• Highly permeable to water vapour (sd-value: 0.01 m)
• Airtight / windtight and highly water resistant (>W1)
• Enhances the airtightness of the construction
• Lightweight, flexible and easy to install
• Should be surface applied, fixed directly to sheathing ply /OSB, 
insulation or blockwork
• Established & trusted long-term performance
• Also suitable for steel-frame and concrete structures

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Vapour Permeable Membranes (VPM)

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Timber Frame Wall Membrane 1.4 x 100m

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