Powerlon UltraPerm is a universal roofing felt - for all pitch roof designs

Designed as a universal breather membrane, Powerlon UltraPerm is a high performance underlay for all pitched roof designs. It can be used on warm and cold, supported and un-supported, ventilated and un-ventilated roofs.

UltraPerm is a non-woven composite membrane with exceptional water vapour transmission, hydrophobic (water repellent) characteristics and good UV stabilisation. The membrane also has good air barrier characteristics designed to improve the air-tightness of the building.

Powerlon UltraPerm is a top of the range fourth generation breather membrane for traditional cold roofs and modern warm roof installations. It is tough, tear resistant and durable with superior performance to traditional felts.

Powerlon UltraPerm is BRE certified for warm and cold, supported and un-supported, ventilated and un-ventilated roof constructions and covers the UK and the Republic of Ireland.