Protect your roof structure with this premium 3-layer, highly permeable roofing membrane. Engineer...Protect your roof structure with this premium 3-layer, highly permeable roofing membrane. Engineered for exceptional strength and durability, it provides long-term performance. Its advanced breathability allows trapped moisture to escape while effectively blocking external water, keeping your roof structure dry and healthy. The thermolaminated design with non-woven polypropylene offers enhanced adhesion for maximum tear resistance, stability, and lifespan. The UV-stabilized surface provides up to 6 weeks of protection during installation and acts as a reliable barrier against rain, snow, and wind. Ideal as underlay for tiles, metal sheets, or shingles on pitched roofs, it's also perfect for wind insulation in timber frame walls. Lightweight, flexible, and simple to cut, this membrane is easy to handle and install, making it convenient for both professionals and DIY projects. It helps prevent condensation and moisture buildup, extending roof life and improving overall building efficiency. Manufacturer: B2C
This 3-layer, highly permeable roofing and wall membrane is designed for builders and DIY enthusiasts seeking robust protection for pitched roofs and timber frame walls. Its key benefit is superior moisture management, allowing internal moisture to escape while preventing external water ingress, thus protecting roof structures and improving building efficiency. A potential caveat is the 6-week UV exposure limit during installation, requiring timely completion of subsequent roofing layers. The membrane offers exceptional strength, durability, and stability through its thermolaminated design with non-woven polypropylene, ensuring long-term performance and resistance to tears.
All features
Model Part Number
Vatec100
Brand
B2C
Extended Product Information
FAQs
What is the primary function of this breathable membrane?
Its primary function is to allow moisture vapor from inside the building to escape the roof structure while preventing external water (rain, snow) from entering, thereby protecting the building fabric and insulation.
How long can the membrane be exposed to UV light?
The UV-stabilized surface provides protection for up to 6 weeks during installation. It is essential to cover it with the final roofing or cladding material within this period.
Can this membrane be used on flat roofs?
This membrane is primarily designed for pitched roofs and walls. For flat roofs, specific membrane types designed for those applications should be used.
What is the weight per square meter (g/m2) of this membrane?
The membrane is rated at 100g/m2, indicating its density and material weight.
How are the seams of the membrane sealed?
Seams are typically sealed by overlapping the material according to manufacturer guidelines (usually 100-150mm) and can be further secured with specialized tapes or adhesives recommended by the manufacturer for optimal airtightness and water resistance.
Is this membrane suitable for use in high-wind areas?
Yes, its durable construction and secure installation make it suitable for pitched roofs and walls, providing a good barrier against wind, especially when installed correctly as per guidelines.
What are the dimensions of the membrane?
The membrane is 1.5 meters wide. It is available in different roll lengths, such as 20m or 50m, to suit various project sizes.
Troubleshooting
Membrane tears during installation
Ensure proper handling and cutting techniques. Use a sharp knife for clean cuts. For small tears, use manufacturer-approved repair tape. Ensure adequate support from the underlying structure.
Water pooling on the membrane surface
Check for proper drainage and overlap. Ensure the membrane is installed with a sufficient slope to allow water runoff. Verify that fixings are not creating channels for water ingress.
Excessive condensation under the membrane
Verify that the membrane is installed correctly with adequate ventilation where required by design. Ensure external water is not penetrating. The membrane's permeability should allow internal vapor to escape.
Pros and Cons
Pros
Provides excellent breathability to prevent moisture buildup.
Offers strong protection against external water and wind.
Enhances the longevity and efficiency of roof structures.
Durable and tear-resistant due to its thermolaminated design.
Easy to handle and install, saving time and labor.
Versatile for both pitched roof underlay and wall insulation applications.
Cons
Limited UV exposure of up to 6 weeks during installation requires prompt follow-up.
Requires proper installation techniques to ensure optimal performance.
Not designed for direct external exposure beyond the specified installation window.
Setup, Compatibility & Care
Setup:
Ensure the roof deck or wall sheathing is clean, dry, and free of obstructions.
Unroll the membrane, paying attention to the overlap direction (typically indicated on the membrane itself).
Install the membrane horizontally, starting from the eaves and working upwards.
Ensure a minimum overlap of 100mm for horizontal laps and 150mm for vertical laps, or as per local building codes.
Secure the membrane using appropriate fixings (e.g., cap nails or staples), ensuring they do not compromise the waterproof integrity.
When used as wall insulation, install on the exterior of the framing before cladding.
Compatibility:
Suitable for use under most common roofing materials including tiles (clay, concrete), slate, metal sheets, and shingles.
Compatible with timber frame construction for wind insulation.
Ensure compatibility with any specific adhesives or tapes used for sealing laps, following manufacturer recommendations.
Care:
The UV-stabilized surface provides protection for up to 6 weeks. Ensure subsequent roofing or cladding layers are applied within this timeframe.
Avoid prolonged exposure to direct sunlight beyond the recommended period.
Store rolls in a cool, dry place, away from direct sunlight and moisture, preferably in their original packaging until installation.
Protect the membrane from damage during handling and installation.