Nationwide Delivery

Knowledgeable Staff

Outstanding Service

Secure payments

Permavent APEX Air & Vapour Permeable Breather Membrane 1m x 50m


£156 Incl. VAT
£130 Ex. VAT

Pay in 3 interest free payments with PayPal on checkout. Choose PayPal at checkout. Learn more
Estimated Delivery: 1-3 working days


The Permavent APEX is a breathable roofing membrane with unique condensation control properties that eliminates the need for low or high-level ventilation. Particularly helpful during the drying out period of a build, the fully air and vapour permeable membrane protects against moisture buildup. Whilst its excellent water resistance provides a barrier against the elements. Tailored for use on any type of wall and cold or warm roof installation, the APEX is a versatile and cost-effective solution to your breathable membrane needs.

APEX’s three-layer composition is strong and durable, offering impressive tear resistance. The integrated tape system allows for quick and easy installation, with a fully air and watertight seal. The APEX is fully BBA certified and exceeds BS Code of Practice requirements. At 180 grams per meter squared, the high performance Permavent APEX is a premium breathable roofing membrane you can trust.

Why Choose this Permavent APEX Air & Vapour Permeable Breathable Membrane 1m x 50m?

  • Fully air & vapour permeable
  • Suitable for walls and roofs
  • No ventilation needed
  • Strong & durable
  • Extremely water resistant
  • Integrated tape
  • BBA approved

Product Specifications:

Size: 1m x 50m

Nominal Weight: 180 g/m²

Tensile Strength MD / CD:  330 / 270 N/50mm

Elongation MD / CD: 56% / 68%

Resistance to Tearing MD / CD: 210 / 210 N

Resistance to Water Penetration: W1 Class

Water Vapour Transmission:  0.01 (sd),m

UV Stability: 3 months

Deliveries are made on the basis the customer can accept the goods, or willingness to off load the goods, or having means of mechanical offload, this also applies to heavier items such as pallets etc. All deliveries are made ‘kerbside’ and often it can be at the discretion of the driver. A large majority of deliveries would be made on a large rigid tail-lift vehicle and off loaded via a pallet truck and only on to flat surfaces such as tarmac, concrete and pavers. If you do have restricted access, please contact us prior to placing your order. We will always try to accommodate your needs. If a delivery fails due to access, we reserve the right to make a re-delivery charge. All delivery charges are calculated when checking out. The delivery charges included are for the Mainland UK only and do not apply to the Scottish Highlands, or Isles off the Mainland. Additional charges may apply for deliveries that aren’t classed within the Mainland (this is classed by ourselves, suppliers and couriers) Please contact us on 01752 466151 or Due to the nature of our business model, this can mean your order will be sent via multiple deliveries. Whilst we will make every effort to deliver your goods within the stated/requested time frame, we cannot guarantee availability from the manufacturer or the manufacturer's delivery schedules, so we would recommend the end user not to start/schedule any work until the goods arrive. Due to logistics of various couriers and suppliers we are unable to give times of deliveries. However, please call or email us on the day of the delivery and we will try to get an approximate time. Deliveries can take place from as earlier as 07:30 right up to 18:00 depending on the courier/haulier and taking into account local traffic etc.
You have 14 days from receiving your item(s) to return them should you wish to do so. Please contact us should you wish to arrange a refund/return. Any bespoke items such as cut to size lead, cut to size sheets and coping stones are all made to order and are non-refundable.

Have a Question?

Be the first to ask a question about this.

Ask a Question

Payment & Security

Apple Pay Google Pay Maestro Mastercard PayPal Shop Pay Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.