Description
Permavent RED is a vapour-permeable underlay designed for use as a secondary weather barrier in pitched roof and wall constructions. The underlay has been BRE tested and is suitable for installation across all UK wind zones, including installations with battened or taped laps at gauges of ≤345 mm, in accordance with BS 5534:2014+A2:2018 and when installed in accordance with certification requirements. It may be installed in unsupported or fully supported applications, allowing suitability across a wide range of roofing and wall build-ups.
It achieves a W1 water resistance classification and provides a hydrostatic head greater than 2.0 metres, indicating superior resistance to water penetration under hydrostatic pressure, including wind-driven rain.
Features
- Vapour-permeable underlay for roof and wall constructions.
- Suitable for use with all types of solar panels.
- Suitable for use in all wind exposure zones, independent of installation method, when installed in accordance with fitting guidance.
- BBA certified 25/7479.
- RED meets underlay recommendations in BS 5534:2014+A2:2018. Slating and tiling for pitched roofs and vertical cladding. Code of practice.
- W1 water resistance rating for external moisture protection.
- High tensile strength to withstand installation stresses and wind loading.
- High tear resistance, supporting integrity around fixings and penetrations.
Specifications
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Length
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50m
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Product Type
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Roofing Membrane
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Width
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1m
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Delivery
We offer free delivery on orders over £300 with no minimum order requirements to customers near our network of branches. Standard delivery is 2-3 working days. Our standard delivery fee is £15.To find out if we can deliver to you please enter your postcode when prompted. If you need more help please contact your local branch.Once you have placed your order one of our team from your local branch will be in touch to arrange a delivery date for you.We offer free next day delivery on smaller postable items such as screws, gloves and some tools on orders over £50. A postage cost of £5 applies for orders below this. These items can be delivered nationally by our trusted delivery partner DPD to most mainland UK addresses.We endeavour to ship all orders within 24hrs of receiving the order.Please see our delivery page below for further details.
Returns
If you’d like to return your goods, or part of your goods, please contact your local Elliotts branch to arrange this.Returns are accepted if defective or damaged (please contact us) or if the product is returned in new/unopened condition.Please see our returns page below for further details.
