New Flex-R Rubberbond AVCL guards against moisture damage

Flex-R has expanded its product range with the RubberBond Air & Vapour Control Layer (AVCL), a self-adhesive bituminous membrane with an aluminium foil laminate and glass fibre reinforcement.  

This additional layer in the construction of a flat roof is required to prevent interstitial condensation and potential moisture damage, which can lead to mould and even structural damage.  The product allows a flame-free, cold application process. It is puncture-resistant and self-adhesive, and the range includes a specialised primer to improve adhesion on porous or vertical surfaces. 

The RubberBond AVCL features an upper aluminium surface coated with polyester, which protects against alkalis and provides a bonding surface for polyurethane insulation adhesives. It offers high vapour resistance due to its foil laminate, so is suitable for use in high-humidity environments such as swimming pools, sports halls, bathrooms and kitchens. The AVCL is compatible with several common substrates including concrete, plywood, OSB and metal decks. It can also withstand foot traffic during the installation process. It is available in 22-metre rolls, each measuring 915mm in width.  

The RubberBond Fleeceback EPDM, AVCL and LQD-PUR systems can only be purchased from Flex-R by contractors who are members of Flex-R’s Specialist Installer (SRI) scheme. These installers have completed the Flex-R product training courses and show continuous high standards of workmanship and customer care. Scheme members benefit from exclusive product availability and technical project support.  

flex-r.co.uk