Permavent Breather Membrane

Permavent MAX breather membrane is manufactured using the very latest technology from the medical industry to encapsulate the highest grade Hydrophobic film and produce the best overall performing Breather membrane in Britain.

Permavent MAX breather membrane  has been fully tested by the BBA and has been certified for use in all construction applications under certificate 05/4227 as well as in the non-vented roofing application under certificate 06/4311. Over 3million metres of Permavent MAX have been used on commercial, local authority and domestic applications throughout the whole of the UK without a single complaint or rectification.

It is a legal requirement of the British Standards (BS5250) and therefore the building control department (LABC) that all breather membranes that are used to control condensation in the roof space must be tested and therefore covered by these certificates. Below is a comparison chart that shows how Permavent MAX breather membrane compares with similar products. These results are from the BBA's independent tests.

Permavent MAX uses a special hydrophobic film that cannot become blocked by slate debris or suffer the reverse affect of static condensation.

The performance of many membranes is reduced when the layers are stuck together but the special 3-to-1 thermal bond of Permavent MAX breather membrane creates a durable membrane that cannot delaminate.

High-grade materials combined with the worlds most advanced production shows that the lighter weight, strength and elasticity of Permavent MAX breather membrane means that it can be used in any application to improve the performance of an existing membrane.

Permavent MAX breather membrane can be used on all roofing types including: cold vented, non-vented, warm deck and hybrid roofs (habitable roof space).

Permavent MAX breather membrane can also be used as a housewrap or skeletal construction as well as under a siding.