Permavent Black Breathable Membrane

Product Code 60295c
From £30.75
Incl. VAT £36.90

Est. delivery: 1-2 Working Days

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  • One of the best performing breather membranes, offering superior strength, breathibility, flexibility and durability.
  • Top of the range performance, suitable as a breather membrane for all domestic and commercial applications.
  • Uniquely laminated for long lasting durability, tear resistance and integrity.
  • Excellent water shedding and vapour transfer characteristics – keeps roofing timber dry and free from rot.
  • Material: Multiple layers of polypropylene, in a specially laminated membrane.

Permavent Black Breathable Membrane

A top quality product by Permavent, this black breathable membrane will be suitable for all cold, warm, hybrid as well as boarded roof designs. If you are looking for supremely long lasting protection of roofing timbers, this underlay will be your ideal product.

The Permavent black breathable membrane is manufactured using innovative bonding techniques that have been adapted from the medical industry and transformed for a roofing purpose. The unique laminating processes involved will produce a multi-layered membrane that offers unparalleled strength and water vapour transmission that is second to none.

You can buy the Permavent black breathable membrane from JJ Roofing with confidence knowing that you are choosing an accredited product of the highest quality. It has been fully certified under the CE guidelines.

Products that have received the coveted CE marking have been rigorously field tested and certified by European laboratories who grade them under the strictest guidelines. The Permavent black breathable membrane has been certified for use in any and all types of walling and roofing applications.

You can trust Permavent to always use the very latest in modern technology to create their fantastic membranes. Utilising methods from the medical industry, Permavent encapsulates the highest grade hydrophobic film inside top quality spun-bound polypropylene layers.

While many manufacturers offering similar products will simply stick the layers together, Permavent manufactures the membranes in a single process that vastly improves their quality and integrity. It is a 3-in-1 process that allows Permavent to offer the most well-performing breather membranes in their class when it comes to breathability, strength, flexibility and longevity.

This Permavent black breathable membrane is black on both sides and will be suitable for all types of roofing and walling applications. A high quality product that fully complies with:

  • BS 5250: 2011 Code of Practice for Control of Condensation in Buildings
  • BS 5534: 2014 Code of Practice for Slating and Tiling
  • BS 8000-6: 1990 Workmanship on Building Sites
  • BS EN 1991-1-4: 2005
  • A1: 2010 + UK NA
  • BS EN 13859: Flexible Sheets for Underlays
  • BS EN 13501-1 2007

FREE DELIVERY on Roof Windows and Accessories on orders over £50 (Exclusions apply)

All other Delivery Charges are based on weight and location, please add products to your basket to calculate shipping.

A small amount of product lines from particular manufacturers listed below will incur a supplier delivery surcharge.


Next Day Delivery available on orders of stocked items if placed before 2pm

Deliveries will be made between 8am and 6pm. Delivery times apply to weekdays only.


Delivery of Windows to England, Wales, and the majority of Scotland:
Basket Value Price (£)
0-£50 £9.95
Over £50 Free Delivery

Delivery of Windows to the Channel Islands, Scottish Highlands, Northern Ireland, Isle of Man

(postcodes IV, HS, KA27-28, KW, PA20-49, PA60-78, PH17-26, PH30-44, PH49-50, ZE, AB)

Basket Value Price (£)
0-£249 £20
Over £250 £50

It is with regret that we cannot offer a service to these areas for orders over 126kg but please call us on and we will attempt to organise a delivery to your custom if required.


Supplier Delivery Charges

Please note the following supplier delivery surcharges:

Ariel Plastics = £25.00

Britmet Tileform= £35.00

Lead Products(orders under 250kg) = £50.00

Marley Eternit roof tiles (orders under a pallet) = £75.00

Marley Eternit sheeting (exclusions apply) = £50.00

Redland = £100.00

Palram = £25.00

Please phone us on if you are unsure.