Vapour permeable and vapour barrier roofing membranes that protect the roof structure from moisture and humidity.
Vapour permeable film
The vapour permeable roof membrane provides reliable protection for all sloping roof structures.
Its triple-layer polypropylene construction provides excellent vapour permeability and a timeless waterproofing, effectively protecting the roof structure from moisture and condensation, as well as providing protection against dust, snow and wind.
Package:
1.5 m x 50 fm roll = 75 m²/roll
Specific gravity:
95-180g/m2
Use:
The foil should be installed parallel to the gutter and leave at least 10 cm overlap.
Key benefits
- High vapour permeability: allows the vapour generated in the structure to escape while preventing the ingress of external moisture.
- Three-layer construction: durable PP (polypropylene) textile + functional foil layer combination.
- Excellent tensile strength: it resists mechanical stress, making it easy and safe to lay.
- UV-stabilised: 3 months UV resistance after installation, ensuring peace of mind.
- Water resistance: waterproofing class W1, which guarantees perfect protection of the roof against rainwater.
Field of application: vapour permeable sheeting is ideal for all pitched roofs, for installation above or below rafters, for ventilation air gap systems and sandwich structures.
Why choose a vapour permeable roof membrane?
- High vapour permeability: the roof structure is ventilated to avoid condensation and structural damage.
- Excellent waterproofing: water resistance class W1 for total safety.
- Strong, three-layer construction: a combination of PP (polypropylene) textile and functional foil, guaranteeing a long service life.
- UV-resistant design: 3 months UV stabilisation for the duration of the installation.
- Easy to lay: easy to handle, flexible and easy to cut.
Perfect for both new roofs and renovation of old structures.

Vapour barrier film
A vapour barrier membrane should be installed on the inside of the roof insulation. It prevents vapour from entering directly into the insulation, which could lead to mould and fungal growth. It is recommended for double-ventilated roofs.
Package:
1.5 m x 50 fm roll = 75 m²/roll
Use:
The membrane should be installed parallel to the gutter, leaving at least 15-20 cm overlap, and all overlap and fixing points should be sealed with special tape.




