Description
Strotex Basic Breathable Membrane 115g – 50m x 1.5m | CE Certified Roofing & Wall Membrane
Strotex Basic 115g Breathable Membrane – Reliable Roofing Underlay for Moisture & Weather Protection
The Strotex Basic Breathable Membrane 115g (50m x 1.5m) is a high-quality breathable roofing and wall membrane designed to provide reliable protection against moisture, wind, rain, and airborne contaminants while allowing water vapour to escape from within the building. Manufactured to British Standards and CE Certified, Strotex has become a trusted choice for roofing contractors, builders, and DIY projects across the UK.
With its durable 115g/m² construction, the Strotex Basic membrane offers a higher specification than many standard breathable membranes available on the market, delivering dependable performance for residential and commercial roofing applications.
Why Choose Strotex Basic?
- Premium 115g/m² breathable membrane
- Roll size: 50m x 1.5m (75m² coverage)
- British Standard Approved
- CE Certified
- Higher specification than equivalent market membranes
- Excellent vapour permeability to help reduce condensation
- Protects against wind-driven rain and moisture ingress
- Strong, lightweight and easy to install
- Suitable for pitched roofs, timber frame walls, and external cladding systems
- Durable construction for long-lasting performance
Superior Performance Compared to Standard Membranes
Strotex breathable membranes are manufactured to higher specifications than many competing products:
- Strotex 95g – Higher specification than standard market alternatives
- Strotex 115g – Outperforms equivalent market membranes
- Strotex 135g – Higher specification than comparable products
- Strotex 150g – No direct market equivalent
- Strotex 170g – Exceeds equivalent market membranes
- Strotex 220g – Industry-leading specification, outperforming all other breathable membranes available
Effective Moisture & Weather Protection
The Strotex Basic Breathable Membrane provides an essential secondary barrier beneath roof coverings and external cladding systems. It helps prevent moisture that passes through the outer layer from penetrating further into the building structure while allowing trapped water vapour to escape, reducing the risk of condensation and helping to maintain insulation performance.
It also helps protect against:
- Wind-driven rain
- Moisture ingress
- Dust and dirt
- External environmental contaminants
This combination of breathability and weather resistance helps extend the lifespan of your roof and contributes to a healthier, more energy-efficient building.
Product Specifications
- Brand: Strotex
- Product: Basic Breathable Membrane
- Weight: 115g/m²
- Roll Size: 50m x 1.5m
- Coverage: 75m²
- Certification: CE Certified
- Compliance: British Standards
- Colour: As shown in the second product image
The Strotex Range
Whether you’re completing a new roof installation or a refurbishment project, the Strotex range offers a breathable membrane to suit every application. For projects requiring increased durability and performance, Strotex also offers 135g, 150g, 170g, and the premium 220g 4-layer fully permeable membrane, providing market-leading protection for demanding roofing applications.
Choose the Strotex Basic 115g Breathable Membrane for a dependable, professional-quality roofing underlay that delivers excellent breathability, weather resistance, and long-lasting protection.

