Majrex is a sheet membrane and an air and vapour control layer. Its unique one-way filter effect for moisture means its better than any other option out there for condensation control and airtightness. We introduce you.

What can you expect from an airtightness workshop CPD in your office - make low energy building easier.

A plain-language description of the measure of resistance to water vapour, the SD value. Useful for designers of low energy high efficiency buildings.