Cromar Vent 3 Breather Membrane 1x50m (blue) 135g

Cromar Vent 3 Breather Membrane  1m x 50m (Blue) 135g

The Cromar Vent 3 Breather Membrane is a high-performance roofing and wall membrane designed to provide effective moisture management while allowing structures to breathe. Manufactured for modern construction requirements, this lightweight yet durable membrane offers reliable protection against wind-driven rain and external elements while enabling internal water vapour to escape. Ideal for pitched roof systems and wall applications, it helps maintain the integrity and longevity of the building structure.

Product Features / Specifications

High-quality breathable roofing membrane

1m x 50m roll size for efficient coverage

135g/m² weight for durability and performance

Distinct blue colour for easy identification on site

Allows water vapour to escape while preventing water ingress

Suitable for use in roof and wall construction

Lightweight and easy to install

Designed to perform under typical UK building conditions

Detailed Product Benefits

The Cromar Vent 3 Breather Membrane is designed to improve building performance by allowing moisture vapour from inside the structure to escape while preventing rain and wind from penetrating the building envelope. This balance helps reduce the risk of condensation build-up, which can lead to mould, rot, or damage to insulation and timber components.

Its 135g/m² construction provides excellent durability while remaining lightweight enough for easy handling and installation on site. The membrane can be quickly rolled out across roof rafters or wall frameworks, helping speed up the construction process without compromising protection.

By providing an additional layer of weather resistance beneath roof coverings or external cladding, the membrane contributes to the long-term protection and energy efficiency of the building.

Applications and Versatility

This breather membrane is suitable for a wide range of roofing and construction applications, including:

Pitched roof systems beneath tiles or slates

Timber frame wall constructions

New build residential developments

Property extensions and refurbishments

Protection for insulation layers

General roof underlay applications

Projects requiring breathable weather protection

Technical Specifications

Product Name: Cromar Vent 3 Breather Membrane

Roll Size: 1m x 50m

Weight: 135g/m²

Colour: Blue

Material Type: Breathable synthetic roofing membrane

Function: Vapour-permeable weather barrier

Application: Roof and wall systems

Installation: Laid beneath external roof coverings or cladding

Storage: Store in a dry area away from direct sunlight

Features & Benefits List

Breathable membrane helps prevent condensation build-up

Protects structures from wind-driven rain

Lightweight design for easy handling and installation

Durable 135g/m² material for reliable performance

Suitable for both roofing and wall construction

Helps maintain building insulation performance

Clear blue colour for quick on-site identification

Additional Information

For best performance, the membrane should be installed in accordance with current building regulations and manufacturer guidelines. Ensure correct overlaps and sealing where required to maintain a continuous protective layer. The Cromar Vent 3 Breather Membrane should be stored in a dry location and protected from prolonged exposure to UV light before installation. Proper installation will help maximise moisture control and long-term building protection.

For more information, please contact us on:

Bothwell: 01698 687954

Edinburgh: 0131 4434474

Email: [email protected]