- Easy Roof System
- Vapour Permeable Membranes
- Fire Rated Membranes
- Diamond GRP
- Case Studies
Permavent APEX air permeability value is >36.72m3/m2h50Pa.Further Info
Permavent products are stocked across the country in a wide range of builders' merchants and wholesale locations. Read more about our Stockist Finder.Further Info
All Permavent membranes are suitable to various areas and projects, but several are suitable for all UK wind zones.Further Info
In accordance with BS5534 the laps of a roofing underlay can be restrained in 3 ways. Click Further Info to read more.Further Info
Yes, the uniform properties of fibre-cement slates work effectively when installed with Easy Slate.Further Info
Yes, Easy Slate can be installed using traditional hook-fixing methods.Further Info
Yes, the Easy Roof System can be installed unaffected by the addition of rooflights. Please seek guidance from the rooflight manufacturer as to the minimum pitch when using their products.Further Info
Yes, Permavent APEX can be installed in both applications. For more complex roofs please speak with our technical department.Further Info
Permavent APEX complies with NHBC requirements for cold/warm roof constructions without the need for any high or low level ventilation under the NHBC warranty.Further Info
No, in order to qualify for the 40 year guarantee the membrane used must be Permavent DRY+. Read on for further stipulations.Further Info
Yes, it can. Permavent APEX is UV stable for up to 3 months.Further Info
Yes, Permavent construction membranes are UV stable up to 3 months and water resistant.Further Info
Yes, Easy Slate and Plain Easy along with the Easy Roof System as a whole can be used alongside reclaimed products in historical renovations or replacement roofs.Further Info
Permavent can offer off-the-shelf and bespoke solutions for this application.Further Info
Plain Easy separates the tiles from one another and significantly reduces the chances of cracking due to freeze-thaw action.Further Info
No, Easy Slate can be installed using traditional slate headlaps.Further Info
A VCL is not required for non-ventilated cold roof installation. For further design support please contact a member of the team.Further Info
Different membranes have differing requirements when it comes to ventilation. Please speak with a member of the technical team, who can help you find the right product for your design.Further Info
Since valley and hip tiles are manufactured to be used at standard pitches rather than low pitch the Plain Easy system would not be required.Further Info
Permavent roofing underlays should be affixed using clout nails. It's important that the nails are located beneath laps, to ensure that the underlay prevents water penetration.Further Info
No every slate is protected by the Easy Slate System, and water ingress is stopped even from wind-driven rain.Further Info
Yes – please see image of copper disc rivet application with Easy Slate.Further Info
Yes, in accordance with guidance provided by BS5250 and fibre-cement slate manufacturers.Further Info
Permavent APEX is extremely cost effective thanks to a unique integrated tape system that reduces waste, time and labour.Further Info
A site visit is not a requirement for the guarantee, but images of the project before, during and after completion are necessary alongside the guarantee application. Read more about the Easy Roof System and Diamond GRP guarantees by clicking here.Further Info
Please install Easy Valley with the fixing that holds the cap in place at the higher end of the strip.Further Info
When pitched at 12 degrees, Easy Slate is approved for use with a maximum rafter length of 8 metres.Further Info
Yes, Easy Soaker provides a cost-effective replacement for traditional lead flashing.Further Info
Permavent APEX is suitable for use in zones 1-5 (taped lap) and zones 1-3 (batten-restrained ≤345mm batten gauge).Further Info
The drying out period is the period over which the building dries. The building will have collected moisture during construction, especially if there has been inclement weather, as well as the materials themselves retaining some moisture. Once the membrane and roof is installed the internal area will begin to dry. This period can very in […]Further Info
As referenced in the Permavent BRE wind driven rain test report 273-259, Easy Slate is tested and approved as low as 12 degrees within areas of severe exposure.Further Info
Easy Slate allows slates to be installed as low as 12°.Further Info
Minimum pitch recommended in BS 5534: 35° Plain Easy allows plain tiles to be installed as low as 17.5°Further Info
The majority of breather membrane manufacturers recommend installing their membranes with a 150mm lap (225mm for lower pitches). Permavent APEX Taped with double-integrated tape, has been tested and approved for installation with a 100mm membrane lap.Further Info
When installing with no additional slating battens we advise using Easy Verge Trim.Further Info
We've put together some commonly asked questions to give you more information about Permavent and the products we offer.
The Easy Roof System allowed contractors to refurbish the roofs of 3 historic barns, while maintaining the original aesthetic and low pitch.
Safeshield XT Reflect A2-s1, d0 fire rated wall membrane was used in the recladding of the Genting Casino, Premier and Holiday Inns.
Recovering works on an Armley primary school renewing the fibre-cement slate roof with Permavent RED vapour-permeable underlay.
Safeshield XT Reflect A2 -s1,d0 fire rated membrane used in a refurbishment in the heart of Glasgow.
A reroofing project for Scarborough Borough Council using Permavent APEX.
A large barn conversion in Suffolk including a re-roof and installation of solar panels as the client is invested in sustainable living.