Masons VHP Strong Roofing Underlay is a 140gsm premium roofing underlay. It is fire retardant, high performance and highly breathable and a huge upgrade from Bitumen paper.
Manufactured from synthetic multi-laminate spun-bonded, non-woven polypropylene membranes it has the following benefits:
Intended Use
Masons Roof Underlays are for use as a self-supporting roofing underlay