Masons Roof Underlay ( CODEMARK )

Product Description

Made from a very high vapour permeable water resistant membrane and layers of non-woven polyolefin fabric.

Deflects water and air during construction and as part of the finished roof designs moisture management system.

Masons VHP Roof Underlay offers value for money, especially VHP Value.All Masons VHP Roof Underlays are ‘self-supporting’.Fire retardant underlay which performs well in rigorous testing to pass NZ/AS1530 part 2 FI <5.

Please note VHP Value is not fire retardant.Highly breathable premium roof underlays for their weight, having the ability to transfer water vapour at higher rates than traditional bitumen impregnated kraft paper (black paper).

This is helpful in the control of condensation.

All our underlays give weather protection during construction and UV resistance for 21 days.