Visqueen High Performance Vapour Barrier is a multi-layer reinforced polyethylene barrier with a 20 micron aluminium foil. The barrier is coloured blue on the upper surface and silver on the reverse. The product is supplied in single wound rolls (not folded), 2m x 50m long.
Gauge / Mil
Performance Category / Characteristics
WVTR (Water Vapor Transmission Rate)
Features & Benefits:
Versatile application - used within floor, wall and roof constructions
Suitable for BS 5250:2021 humidity classes 3, 4 and 5 - prevents damage to structure and insulation
Single wound roll - rapid installation
Visqueen Fully Bonded Vapour Barrier is an AVCL (air and vapour control layer) and is used in high condensation risk buildings, or where a fully bonded vapour barrier is required to reduce the risk of interstitial condensation occurring within the structure as well as improving the airtightness of the building.
The barrier restricts the passage of warm, moist air within the building from permeating into the floor, wall or roof structure.