Shop 
innovative construction products
Permavent supply the construction market with a range of class leading fire rated membranes for use in all types of modern construction. Our range of membranes offer exceptional fire properties that help prevent the spread of fire. All Permavent membranes are developed using the latest technologically advanced manufacturing processes and have been extensively and independently tested for their fire performance. Permavent's team of technical experts are always available to advise and support you on specifying the correct fire rated membrane for your next construction project.
Permavent offers the most competitive walling membranes in the UK. Featuring Safeshield XT Reflect, our A2-s1,d0 Fire Rated membrane that helps to protect the building from fire in the cavity with it's non-combustible materials. The reflective surface also provides thermal benefits. Also featuring the Envirotect range, a complete range of walling membranes, Air and vapour control layer and floor cassette designed to reduce the emissivity of the cavity and improve the energy efficiency of the building. Available with a high-purity aluminium coating which offers additional thermal benefits also.
The Easy Roof system is a unique, patented low pitched roofing system that offers a solution to enable slates to be installed at shallow pitches as low as 12° and plain tiles as low as 17.5°.
Permavent delivers a high-performance range of roofing underlays for pitched roof applications. Our extensive range includes air-permeable, vapour permeable and impermeable underlays, providing solutions for a wide range of roof designs, pitches and specification requirements. Engineered to regulate air and vapour movement, our underlays help control interstitial condensation risk while providing a reliable secondary barrier to wind-driven rain, protecting the roof structure and maintaining a healthy roof. Independently certified by the British Board of Agrément (BBA), CE and UKCA marked, and rigorously tested by the Building Research Establishment (BRE), our roofing underlays deliver proven compliance and performance. A superior range, engineered to suit all pitched roof types.
Diamond Glass Reinforced Polyester (GRP) is a composite material made from a polyester resin which is reinforced by chopped strand mat (CSM) glass fibres to form a GRP laminate. The Diamond GRP roofing system is constructed from a single-ply laminate applied in situ over 18 mm OSB3 deck. The roof is finished with GRP edge and a coat of Diamond GRP topcoat. When used for roofing, GRP provides a completely weatherproof system without any of the problems associated with traditional flat roofing materials.
Permavent offers the most competitive air open & vapour permeable membrane in the UK. Permavent APEX is a 3 layer breather membrane for use as a pitched roof underlay. Permanent APEX is a vapour and air permeable membrane providing unique condensation control which eliminates the need for low or high level ventilation. Permavent APEX also provides a secondary barrier to water ingress. All of our membranes are manufactured using the latest technology. All membranes are fully UKCA certified and are rigorously tested to comply with European Harmonised standards. Our membranes are fully tested by BRE.
Permavent extensive range of roofing ancillaries; roofing tape, high performance adhesives - suitable for domestic and commercial roofing & walling applications.
