VHP Maxi Roofing Underlay is a 220gsm premium roofing underlay. It is fire retardant, very high performance and highly breathable.
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
NZ Building Code Provisions