Untaped Harcon VPU is a range of high water resistant, vapour permeable roofing underlay. Suitable for both cold and warm pitched roofs, 230gsm heavy weight VPU allows the ready transfer of water vapour to reduce the risk of condensation in the roof void.
Exceptional nail tear and strength
3 weight options available
Highly vapour permeable
Complies with BS5534:2014