Novia® Black+ Construction Wrap Light Breather Membrane - 2.7m x 100m

• 3-layer, high performance wall breather with microporous core
• Class W1 water resistance to EN 1928
• Airtight, and vapour permeable
• Class E (fire) to EN 13501-1
• UKCA to EN 13859-1 (roofs) and EN 13859-2 (walls)
• Ideal for timber frame constructions
• Low cost, W1 wall breather membrane

Novia® Black+ Construction Wrap Light Breather Membrane – 2.7m x 100m is best suited for use as an external breather membrane in timber frame and insulated wall applications where a lightweight yet high-performance solution is required. This 3-layer membrane provides reliable W1 water resistance while maintaining high vapour permeability, allowing trapped moisture to escape and helping to prevent condensation within the wall build-up. Its wide 2.7m roll width makes it particularly effective for rapid installation on large wall sections, reducing joints and improving overall weather protection. Compliant with EN 13859-2 for walls, it is ideal for use behind ventilated cladding and other external finishes. Novia Black+ Construction Wrap Light offers dependable external weatherproofing while supporting the long-term performance of the insulation and internal structure.

Where can I use it?

• Pitched cold or warm roofs (under tiles/slates or roof coverings)
• External walls (behind cladding or rainscreen, over insulation) — suitable for insulated wall assemblies 

What are the benefits / why use a breather membrane like Black+ Essential?

• Helps protect insulation and internal structure from rain, wind-driven moisture, and dust ingress. 
• Allows vapour to escape from inside (i.e. breathable), reducing risk of condensation and related problems such as mould or rot. 
• Works for both roofs and walls — versatile, so you don’t need different membranes for each.
• Lightweight and easy to handle/ install (much lighter than heavy bituminous felts or rigid sheeting), making labour and installation more efficient.

How does Black+ Essential differ from other Black+ variants?

Novia’s “Black+” breather membrane range includes several variants (Ultra, Supreme, Pro) with different weights (gsm) and performance specs. The “Essential” version likely sits toward the middle/entry-to-mid grade (comparable to Supreme), balancing cost, breathability and durability. Heavier variants (Pro) offer greater strength and resistance; lighter (Ultra) offer lighter weight and economy