Breathable Membrane

Breathable Membrane is a required roofing material.

Allbuild's breathable roof membrane, AllVent, can be used both vertically and horizontally, it can be used for house wraps on timber frame buildings as well as in the usual way as a roof membrane.

Allvent is not only breathable, it is also water vapor permeable too.

This product is CE marked and BBA approved.

The BBA approval also states that AllVent breathable membrane is certificated for vertical applications.


Bulk buy discounts available!


Does every building need breathable roof membrane?

More often than not the answer will be yes. Everything we do within the house from cooking to bathing and showering causes moisture. As the moisture rises it becomes trapped in the roof space, this can lead to mould and dampness. Items stored in the loft space will also be affected and most importantly the structure itself can become damaged which can be extremely costly to repair...