Rainscreen cavity barriers from Envirograf have been used for a brand new luxury housing development located on north west London’s much sought-after Finchley Road.

The project, brought together by multi-award winning property development firm, Origin Housing, is due to consist of fashionable and modern apartments, including both 1 and 2 bedroom properties, as well as high-end penthouse suites.

Following direct consultations with Envirograf®, Product 55 (RS range of foil-coated cavity barriers) has been used to improve the fire protection rating of the cavity walls.

It consists of a 30mm or 40mm strip of non-fibrous fireproof sponge, covered with a layer of foiled, reinforced craft paper, which can be easily cut to size with a sharp knife. It also provides insulation and is fully water resistant, making it ideal for use in rainscreens and other types of cladding.

Envirograf® Product 55 is designed to expand under heat, filling any gaps in the lining of external walls and thus preventing fire from spreading. The product has been tested to BS476 parts 20 & 22 and BS EN 1363-1 (1999) giving fire protection from 60 to 120 minutes.