The preferred roofing underlay for many national housebuilders and supported by a number of the UK’s largest roofing contractors, Permavent GRAPHITE is a high-performance and competitive vapour-permeable membrane. GRAPHITE is a versatile secondary waterproofing barrier, which can be specified and installed UK-wide in accordance with BS5534:2014+A2:2018.
Additional benefits:
- Perfect for new-build or refurbishment-led projects.
- A competitive yet high-performance membrane, providing confidence when installed in conjunction with budget-sensitive projects.
- Perfect for UK wide application, a UV stability of 3 x months and a hydrostatic head of water more than >2.0m.
