Product Overview
Premium triple-layer breather membrane crafted from high-tensile spun-bonded polypropylene and a micro-porous film. This innovative design resists water penetration while allowing moisture vapour to escape, delivering superior protection and durability for both warm and cold roof applications.
Ideal for fully supported or unsupported tiled, slated, or metal roof systems, the membrane combines high vapour permeability with a robust waterproof barrier.
The outer layer forms a waterproof surface, the middle layer serves as a breathable barrier, and the inner layer protects against abrasion while adding extra strength.
The 1.5m width makes this roll particularly suited to large roofs and open areas, reducing the number of overlaps and speeding up installation, thereby improving overall efficiency on site.
Features & Benefits
- Triple Layer Membrane: Combines three layers for enhanced waterproofing and breathability.
- Lightweight and Flexible: Facilitates quick installation, adapting easily to various roof contours.
- Excellent Tensile and Tear Strength: Withstands high wind uplift and mechanical stress.
- Waterproof Membrane: Provides robust protection against water penetration.
- Long Term Durability: Designed to last, ensuring continued performance over the roof’s lifespan.
- UV Stable: Maintains performance after up to 4 months of exposure.
- Versatile for Roof Applications: Suitable for both warm and cold roof systems.
- No Additional Ventilation Required: Engineered to manage moisture without extra ventilation systems.
- High coverage efficiency: 1.5m width reduces laps, increasing installation speed.
Applications
- Tiled Roofs: Provides a breathable yet waterproof barrier beneath tiles.
- Slated Roofs: Protects the roof structure while allowing moisture to escape.
- Metal Roof Systems: Enhances performance by reducing condensation and ensuring longevity.
- Unsupported Installations: Drapes over rafters, ensuring ease of installation and effective moisture management.
- Direct Over Insulation: Lays directly on top of insulation without compromising its effectiveness.
Installation Guidance
- Fixing: Secure using corrosion-resistant nails, staples, or counter-battens.
- Laps: Maintain recommended side and end lap dimensions to ensure weatherproofing.
- Support: Allow appropriate drape between rafters in unsupported installations.
- UV exposure: Cover with roof tiles or slates within 3 months of installation.
- Standards: Install in line with BS 5534:2014 and manufacturer’s instructions.
Compliance & Performance
- Construction: Triple-layer breathable membrane.
- Function: Vapour-permeable and water-resistant.
- Durability: Resistant to tearing, UV (temporary), and wind-driven rain.
- Compatibility: Suitable for warm and cold roof constructions.
- Important note: Must be installed as part of a ventilated pitched roof system in line with British Standards.