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Novia Black PRO 146gsm Roof and Wall Breather Membrane ǀ 75m2

Novia Black PRO Roof & Wall Breather Membrane 1.5m x 50m - 75m2
Novia Black PRO 146gsm Roof and Wall Breather Membrane ǀ 75m2
  • Superior water resistance - Highly vapour permeable
  • Standard grade 3 layer laminate 146 gsm membrane
  • Single product for all roofs and walls - E Class
  • CE compliant to EN 13859-1 (roofs) and EN 13859-2 (walls)
  • Air and wind tight - Recyclable and ecologically harmless
Estimated delivery:
In Stock
£ 144.64
Ex VAT: £ 120.53
  • Brand: Novia®
  • Model: Breather Membrane - 75m2 (146gsm)
  • Dimensions: 50,000mm x 1,500mm x 0.15mm
  • SKU: 146gsm
  • Product code: P1-1211
  • MPN: 146gsm Roof and Wall Breather Membrane 75m2

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Novia Black Professional 146GSM Breather Membrane is a superior quality easy to install three layer laminate suitable for pitched cold and warm roofs and insulated wall applications with exceptional water resistance with high breathability. 

It is versatile, heavyweight material suitable for easy installation on insulated frames and pitched roofs.

This Premium Breather Membrane is a functional low-cost product that allows water vapour to escape, but stops larger water droplets from getting in. 

Novia Black PRO 146gsm is the highest grade durable product which meets EN 13859-1 for roofs and EN 13859-2 for walls.

The Membrane is black on one side and white on the reverse, with a 150mm overlap line. 

There are no text or images on either side of the material. 

It is fully compliant with mandatory CE marking requirements introduced under the 2013 Construction Products Regulations.

Novia Black PRO Breather Membrane microporous core is recyclable and ecologically harmless material.



Superior water resistance.

Highly vapour permeable.

Heavier weight breather membrane (146 gsm).

Single product for all roofs and walls.

Three layer laminate with microporous core.

Excellent tensile and nail tear strength.

Matt finish slip-resistant surface.

Install as per BS 5534: 2014 + A2 2018 UV guidance.

CE compliant to EN 13859-1 (roofs) and EN 13859-2 (walls).

Tested for BS 5534 wind uplift requirements.

Air and wind tight.

Recyclable and ecologically harmless.



CE compliant to EN 13859-1 (roofs) and EN 13859-2 (walls)

Class (minimum): W1 Water Tightness

Weight (minimum): 146 gsm

Roll weight: 11.5 kg

Weight: 146 g/m²

Tensile strength MD/CD: 315/220 N/50mm

Elongation MD/CD: 60/70%

Tear resistance MD/CD: 180/220 N

Resistance to air penetration: 0.000 m³/m³

Sd value: 0.05 m

Resistance to water penetration: W1 >250: Class cm

Resistance against fire: E Class

Temperature resistance: -40–80°C

UV resistance: Install as per BS 5534: 2014 + A2 2018 UV guidance



Novia Breather Membrane Lap Tape


*Further information may be found in our Downloads section.

Fairly easy access to all PDF files.

Datasheet ǀ Declaration of Performance - DoP ǀ BBA Certificate ǀ Installation Guide ǀ Certificates ǀ Brochure ǀ SPEC Sheet

Board covarage 75.00 m2
Colour Black ǀ White
Length 50m
Material Three layer synthetic laminate
Thickness 146GSM
Weight 11.57 kg
Width 1500mm
Fire Classification Class E
Shipping method Courier
Applications Pitched Roofs ǀ Insulated Walls
ETA Notification Yes
Features Superior Water Resistance ǀ Breathability
Manufacturer Novia®

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We deliver insulation materials to Mainland UK only. Deliveries to Highlands, Northern Ireland, Isle of Wight etc.. might be possible at additional cost.
We offer free delivery on most of the orders above £300 (excluding VAT) (except special products - shipping cost via courier - products marked ''Request A Quote'')

Delivery of some insulation materials might be extended due to the current situation (Covid-19, stock shortages, allocations).
If you need materials quickly please contact us - we will do our best to help you source materials needed.

We do not deliver on weekends and bank holidays. Sometimes we can deliver on Saturdays - please check with us before placing the order.
If you need any further information please contact us tel. 02081910776

We can help to calculate price per m2 or linear meter (one meter in length) cost, please just contact us via phone 02081910776, email or live chat. Alternatively, you can work it out yourself quickly and easily: to get cost per meter square please divide price shown in orange area by ''Required area (m2)'' Example price of £28.80 divided by board coverage 2.88m2 = cost of £10.00 per m2.


No matter whether you choose a local installer or a national company, there’s a few tips to help you find the right installer for your home insulation improvements, such as asking for recommendations and making sure that they’re part of a certification scheme. This makes sure that they have the right skills and standards of workmanship to carry out the installation, and you can be sure that they know exactly what they are doing.


1. Thermal inspection picture in portfolio

It’s worth seeing a installer’s previous work. There’s no harm asking if you can see any properties nearby that they’ve installed insulation in. Best way would be to see Infrared Thermal Imaging Inspections. Thermal cameras spot small, but key changes in temperature in different areas of a house, identifying problematic areas that the human eye never could and some that a visual inspection could only hypothesize.

2. Reviews

Along with checking recommendations and previous work, finding reviews online can often be a great way to find out if they provide a good service or not. However, it’s best not to solely rely on reviews you may find or review websites, as there’s no controlling who writes them.

3. Compare prices

Comparing prices will also ensure companies can’t take advantage of you and give you a fair price. 

4. Word of Mouth

The best way to find a great insulation installer is through recommendations. Make sure you ask friends and family. They will most likely give you their honest opinion and can tell you from first hand experience.


Whether you require a wall, cladding, external wall, loft or floor insulation fitted, you can find and hire your local insulation installers from popular UK web pages. A simple internet search will return thousands of potential installers near your area.



We are the stockist of construction materials and related products for both trade and DIY from most recognizable brands in the UK like Cordek, RCM, Promat, Rockwool, Isover, Celotex, Xtratherm, Ursa, Low-E, Cedral, Kingspan, Dufaylite, British Gypsum, K-rend, Ecotherm, Iko enertherm, Kay-Metzeler, Terrawool to allow you to complete your insulation job on time at competitive prices and the highest standards.


Whether you are a large company or a DIYer, if you need a large amount of insulation materials, we can offer quantity discounts at the best prices. Please contact us and our friendly customer service will try to find the best and cheapest solutions for you. We value your time and we will try to deliver the products as soon as possible at a reasonable price to your construction site or house. The UK's leading insulation supplier near you and your needs. Price List available upon request.
Novia Black PRO Roof & Wall Breather Membrane 1.5m x 50m - 75m2
Novia Black PRO 146gsm Roof and Wall Breather Membrane ǀ 75m2
£ 144.64