Order Helpline 01752 692 206

Novia Black Pro Roof & Wall Breathable Felt Membrane - 50m x 1.5m Roll

Product Code:
Est. Delivery: 1-3 Working Days
Shipping costs displayed in basket.
We can let you know when this product is back in stock.

This product is proving to be very popular and has unfortunately sold out.

Enter your email below and we'll notify you as soon as this product is back in stock:

Subject to stock availability, if products on a 24 hours service are ordered alongside products NOT on a 24 hours service, this may delay your whole order.

View Transport Policy

All delivery charges are included in the final shopping basket and are dependent on the products Scottish Highlands & the Islands where additional shipping charges will apply.

Please note that not all products will incur an additional delivery charge to the Scottish Highlands & the Islands – this is based on the costs from the manufacturer, distributor or courier providing shipping on our behalf. If your delivery address is in the Scottish Highlands and Islands, a member of our helpline team will contact you prior to processing your order should an additional delivery charge apply.

While we make every effort to ensure orders are delivered by the date required, we cannot guarantee availability from the manufacturer or the manufacturer's delivery schedules.

Any variation to web delivery date given will be advised to you by email or telephone. If we are unable to make delivery because access is not possible, we reserve the right to make a failed delivery charge.

£100.25 Incl. VAT
Oops! Please select from the options


A premium grade synthetic 3-layer laminate utilising a microporous breathable polymer. For use as a roof underlay and as a premium quality wall-cladding on timber frame constructions.

Novia Black Pro is a high quality, versatile, low cost, breather membrane for all pitched cold and warm roofs, and insulated wall applications. The material meets EN 13859-1 for pitched roofing and EN 13859-2 for walls. Novia Black Pro has excellent water resistance but still provides high breathability; it is strong yet lightweight and also complies with EN 13501-1 fire classification grade E. The product is completely black on one side, white on the reverse, with no text or images on either side, except a 150mm overlap line.

Novia Black Pro is fully compliant with new mandatory CE marking requirements, introduced under the 2013 Construction Products Regulations. Under this new European directive, all products covered by a current hEN must comply with the new standard. Third party accreditation is no longer sufficient. Any affected products manufactured after the implementation date in July 2013 must conform to the new CPR standard.


Length: 50m.
Width: 1.5m.
Roll size: 75m2.
Weight: 146gsm.
Roll weight: 11.5kg.
Flame resistance: Class E to EN 13501-1.
UV resistance: 3 months.
Temperature resistance: -40°C to +80°C.
Certification: CE approved.

Installation guide

Walls: Fix the membrane to the wall structure; ensure upper layers overlap lower layers. Work from the bottom moving upwards and ensuring there are minimum overlaps of 100mm on the horizontal joints. Do not begin a vertical lap joint within 300mm of a corner, and vertical laps should be at least 150mm. Ensure the bottom timber is also protected by an overlap. Fix at suitable intervals with galvanised nails, stainless staples or similar fixings that will be permanent.

Do not leave the membrane unnecessarily exposed to weathering as high winds, excessive UV etc. may cause damage over time. If you must leave the membrane exposed for extended periods of time, consider the use of suitable temporary protection materials.

Roofs: Novia Black Pro can be installed within all standard roof applications. On insulated warm roofs, the membrane may be placed directly onto the insulation or boarded roof if required. Novia Black Pro can also be used in conventional cold roof applications. Fix the membrane to the roof structure and ensure upper layers overlap lower layers. Work from the bottom moving upwards and ensure there are minimum overlaps used as shown within BS 5534:2014. The membrane should be overlapped 200mm on each side of the ridge. All vertical overlaps must be situated on a rafter and must be sealed. Fix at suitable intervals with galvanised nails, stainless staples or similar approved fixings that will be permanent. At any entry points for services (soil pipes, vents etc.), ensure that Novia Black is properly sealed. Where pipes etc. penetrate the underlay, cut neatly and accurately and turn edges up to give a tight water-resistant fit, and seal with Novia tapes.

In order to comply with some BS 5534 wind uplift zone requirements you must use our single-sided Novia Breather Membrane Lap Tape. See wind uplift tables for full details. Where BS 5534 compliance requires the use of Novia tape, you may use a smaller 100mm overlap. The batten restrained results, not using Novia tape, were tested using the standard 150mm overlap.


We strongly advise the use of Novia installation tapes, which will greatly improve the performance and overall airtightness of the roof, even if tape is not specified for mandatory use within a particular zone under the BS 5534 wind uplift test results. We offer a single-sided Novia Breather Membrane Lap Tape for basic installations, and for high specification work where there is even greater emphasis on air-tightness we offer the optional Novia Double-Sided Adhesive Tape. For the very best standards of installation and air-tightness, we advise the use both types of tape, which will ensure a long lasting, high quality, breathable and air-tight seal is formed.


Width 1500mm


Permeability Vapour Permeable

Questions & Answers


Im currently in the process of building an extension and the breather membrane specification are as follows: Roof: To BS8747:2007. Annex B, Type 1F or 5U. Inner leaf wall: Just states 2mm thick membrane. Does this membrane comply?


This breather membrane is perfectly suitable and certified for roofing an wall applications. It will conform to buliding standards.


Can this be used inside the walls of my shed? If so, can I then place mineral wall slabs (Rwa45 for example) against the membrane or do I still need to leave an inch or more gap?


The product is designed to be used as the outermost layer before any form of exterior cladding wall. You'll still need to leave approximately 25mm as an air gap between the insulation and membrane so that it can breath. 


Does it have certification?


Yes, Novia breather membranes conform to BE EN 13859-1 and -2 which cover roof and wall applications *Excluding Novia 4016


Where is a breather membrane used?


Breather membranes can be used on roof and wall applications for external applications behind the external façade/roof covering.


Are they airtight?


Yes, Novia breather membranes are airtight which ensures the warmth of the building is retained.


Are they fully waterproof?


Yes, all Novia breather membranes are fully waterproof to W1 standard (the highest possible standard) *Excluding Novia 4016.

Have a question about this product?


5 / 5 2 reviews
Simon Crease
19th August 2020
Very tough, very waterproof, easy to work with
Neil Handley
20th July 2020
Excellent service with next day delivery `A great substantial membrane`
Sorry, there was a problem loading the reviews. Please try again.

Products We Recommend


Product Enquiry Form

Novia Black Pro Roof & Wall Breathable Felt Membrane - 50m x 1.5m Roll

*Required Field

Would you like to empty your basket?

Yes No


It seems you are running an older version of Internet Explorer. Our site does not support these old browsers as they do not house the technology that allows our site to be safe and secure.

If you wish to access our site please either upgrade your browser or download an alternative.