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Original price was: £62.32.£59.20Current price is: £59.20. Inc VAT
Free Delivery on Novia orders over £1200 (incl VAT)
Original price was: £62.32.£59.20Current price is: £59.20. Inc VAT
Free Delivery on Novia orders over £1200 (incl VAT)
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Novia Black+ Essential is a lightweight, cost-effective 92gsm roof and wall breather membrane designed for use in insulated wall applications and pitched roofing. Its 3-layer construction with microporous core combines Class W1 water resistance with high vapour permeability, providing an entry-grade breather membrane for a wide range of building projects.
UKCA compliant with EN 13859-1 for pitched roofs and EN 13859-2 for walls, Novia Black+ Essential also achieves Class W1 water resistance to EN 1928 and Reaction to Fire Class E, d2.
Supplied as a 1.5m x 50m roll, each roll provides 75m² nominal coverage and weighs approximately 7.2kg.
Key benefits include:
Novia Black+ Essential is designed as a breather membrane for both pitched roofing and insulated wall applications.
Typical applications include:
Its combination of water resistance and vapour permeability allows it to form part of an appropriately designed building envelope.
Unlike breather membranes intended exclusively for either roofs or walls, Novia Black+ Essential complies with the relevant standards for both pitched roof and wall applications.
The membrane meets:
This makes it a versatile option where the same breather membrane specification may be required across different parts of a construction project.
Novia Black+ Essential achieves:
Class W1 water resistance to EN 1928
The membrane also maintains a W1 classification after ageing, providing tested resistance to water penetration as part of its performance specification.
This allows the membrane to provide external moisture protection while retaining the vapour permeability required from a breather membrane.
Novia Black+ Essential provides high breathability with an Sd value of 0.029m to EN ISO 12572.
A low Sd value indicates a high level of water vapour permeability, allowing moisture vapour to pass through the membrane as part of an appropriately designed roof or wall construction.
This helps manage moisture within insulated building elements while the membrane provides resistance to external water penetration.
Novia Black+ Essential is also specified as airtight, helping control unwanted air movement through the building envelope when correctly installed and appropriately sealed.
Attention should be given to:
Correct installation and detailing are important to achieving the intended performance of the completed membrane layer.
Novia Black+ Essential meets EN 13859-1 for pitched roofing, making it suitable for use as a roof breather membrane within appropriately designed pitched roof constructions.
Its lightweight 92gsm construction makes the membrane practical to handle on site, while its W1 water resistance and vapour permeability provide the performance required from a modern roof breather membrane.
The product should be installed in accordance with the manufacturer’s instructions and relevant BS 5534 UV guidance.
The membrane also meets EN 13859-2 for wall applications and can be incorporated into insulated wall constructions.
Its combination of:
makes it a practical entry-grade solution for timber frame and other suitable insulated wall systems.
Novia Black+ Essential features a 3-layer construction with a microporous core.
This construction provides the combination of water resistance and vapour permeability required for its intended roof and wall applications.
At a nominal weight of 92gsm, it provides a lightweight membrane solution for projects where an entry-grade breather membrane is appropriate.
Novia Black+ Essential has a stated:
Reaction to Fire Classification E, d2
tested to EN 11925-2.
The membrane should always be specified as part of the complete roof or wall construction according to the fire performance requirements of the individual project.
Novia Black+ Essential is supplied completely black on one side, with a grey finish on the reverse.
There is no text or imagery printed on the membrane, providing a clean and uninterrupted surface.
Each roll measures:
1.5m wide x 50m long
Providing a nominal area of:
1.5m x 50m = 75m²
Each roll weighs approximately 7.2kg.
Actual usable coverage will be lower once appropriate laps, joints, penetrations, cutting, detailing and general wastage are taken into account.
| Performance | Specification |
|---|---|
| Nominal Weight | 92gsm to EN 1849-2 |
| Tensile Strength MD / CD | 239 / 125 N/50mm to EN 12311-1 |
| Elongation MD / CD | 65 / 70% to EN 12311-1 |
| Tear Resistance MD / CD | 75 / 80 N to EN 12310-1 |
| Sd Value | 0.029m to EN ISO 12572 |
| Water Resistance | Class W1 to EN 1928 |
| Water Resistance After Ageing | Class W1 to EN 1928 |
| Low-Temperature Stability | No cracking at -40°C to EN 1109 |
| Reaction to Fire | Class E, d2 to EN 11925-2 |
| UV Guidance | Install as per BS 5534 UV Guidance |
| Specification | Details |
|---|---|
| Product | Novia Black+ Essential |
| Product Type | Roof & Wall Breather Membrane |
| Construction | 3-Layer |
| Core | Microporous |
| Nominal Weight | 92gsm |
| Roll Width | 1.5m |
| Roll Length | 50m |
| Nominal Coverage | 75m² |
| Roll Weight | 7.2kg |
| Water Resistance | Class W1 |
| Sd Value | 0.029m |
| Vapour Performance | Vapour Permeable |
| Airtight | Yes |
| Reaction to Fire | Class E, d2 |
| Roof Standard | EN 13859-1 |
| Wall Standard | EN 13859-2 |
| Face Colour | Black |
| Reverse Colour | Grey |
| Printing | None |
Novia Black+ Essential is a 92gsm, 3-layer roof and wall breather membrane designed for pitched roofing and insulated wall applications.
It combines Class W1 water resistance with high vapour permeability and airtightness.
Each roll measures 1.5m wide x 50m long.
A 1.5m x 50m roll provides:
75m² nominal coverage
Actual usable coverage will be lower once appropriate laps, cutting, detailing and wastage are taken into account.
Each roll weighs approximately 7.2kg.
Novia Black+ Essential has a nominal membrane weight of 92gsm to EN 1849-2.
Yes. Novia Black+ Essential meets EN 13859-1 for pitched roofing and is designed for use within appropriate pitched roof constructions.
Yes. The membrane complies with EN 13859-2 for wall applications and is suitable for insulated wall constructions.
The membrane achieves Class W1 water resistance to EN 1928, including W1 resistance to water penetration after ageing.
It is more accurate to describe the product according to this tested water resistance classification rather than simply referring to it as waterproof.
Yes. It is a vapour-permeable breather membrane with an Sd value of 0.029m.
The Sd value represents the membrane’s resistance to water vapour diffusion expressed as an equivalent air layer thickness.
The relatively low 0.029m Sd value demonstrates the high vapour permeability required from a breather membrane.
Yes. Novia Black+ Essential is specified as airtight and vapour permeable.
Correct treatment of joints, laps, penetrations and interfaces is important to achieving the intended performance of the installed membrane.
Novia Black+ Essential has a stated Reaction to Fire Classification E, d2 to EN 11925-2.
Yes. It is specified as UKCA compliant with:
The stated tensile strength is:
tested to EN 12311-1.
The stated tear resistance is:
tested to EN 12310-1.
The membrane has a stated low-temperature stability with no cracking at -40°C, tested to EN 1109.
Novia specifies that the membrane should be installed in accordance with BS 5534 UV guidance.
The product should therefore not be assumed to tolerate indefinite UV exposure, and installation should follow the manufacturer’s guidance.
Novia Black+ Essential is completely black on one side and grey on the reverse.
No. The membrane is supplied without text or images.
Both are lightweight 3-layer breather membranes with microporous cores and Class W1 water resistance, but their intended formats differ.
Novia Black+ Essential is supplied as a 1.5m x 50m, 92gsm roll and is suitable for both pitched roof and insulated wall applications, meeting EN 13859-1 and EN 13859-2.
Novia Black+ Construction Wrap Light is supplied as a much larger 2.7m x 100m wall breather roll. Although it also meets the pitched roofing standard, roof applications are not advised due to its large roll size.
Black+ Essential is therefore the more practical option where a membrane is specifically required for both roof and wall applications.
Yes. The 75m² figure is the nominal area of the complete roll.
Allowance should be made for appropriate laps, joints, penetrations, cutting, detailing and general wastage when calculating the required quantity.
Novia Black+ Essential provides a cost-effective, lightweight breather membrane solution for both pitched roof and insulated wall applications.
Its 3-layer construction with microporous core combines Class W1 water resistance with an Sd value of just 0.029m, providing high vapour permeability while also offering airtight performance.
UKCA compliant with EN 13859-1 for pitched roofs and EN 13859-2 for walls, the membrane also provides Reaction to Fire Class E, d2 and maintains its W1 water resistance after ageing.
Supplied as a 1.5m x 50m roll, each roll provides 75m² nominal coverage with a roll weight of approximately 7.2kg.
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Technical Data Sheet |
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Declaration of Performance |
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