UV Resistant Façade Membranes
ITP’s UV-resistant and breathable building membranes designed for unparalleled solar protection and performance. Engineered for compatibility with all substrates, these versatile solutions provide advanced UV resistance which safeguards against sunlight-induced degradation, preserving the structural integrity and extending the lifespan of a building. Their breathable design allows moisture vapor to escape while preventing water ingress, ensuring optimal internal conditions and reducing the risk of mould or dampness.
With enhanced durability, energy efficiency, and weatherproofing capabilities, including W1 or W2 rated water tightness, ITP’s UV resistant facade membranes not only protect but also support sustainable building practices. Perfect for residential, commercial, or industrial applications, they offer the ultimate solution for creating robust, efficient, and long-lasting structures.
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Our range of UV Resistant Façade Membranes
Powerlon UV Facade
UV resistant façade membrane
Powerlon UV Facade provides long-term protection for the building envelope in wall applications. Designed for installations behind open or closed ventilated rainscreens and facades, Powerlon UV Facade membranes are highly UV resistant with superior durability compared to conventional breather membranes. Compatible with all substrates, the membrane comes with a 10-year membrane guarantee* and is supplied unprinted and unbranded for optimal aesthetics. The system also comes with proprietary adhesives, tapes and accessories.
Three grades are available:
UV 145 FR (flame retardant Class B-s3,d0)
UV 120 – for openings less than 30mm
UV 160 SA – self-adhesive for openings less than 50mm
Accessories: Sealant, primer, tape and screw pads
*conditions apply
Powerlon UV Colour
UV resistant façade membrane
Powerlon UV Colour is a durable and highly UV resistant membrane designed to protect against damaging sunlight. It is suited for wall installations behind open or closed ventilated facades, including glass, metal mesh, composite materials and timber. The membrane is available in a wide range of attractive colours, opening up exciting new design opportunities. The system also comes with proprietary adhesives, tapes and accessories.
Accessories: Sealant, primer, tape and screw pads
Why is UV resistance important to protect buildings?
The sun emits ultraviolet (UV) light that degrades certain materials over time. As the chemicals are constantly exposed to ultraviolet (UV) radiation from the sun, materials can break-down. The sun’s heat also expands certain materials, which then contract as they start to cool, causing gradual, long-term damage as the cycle repeats.
Solar heat can cause blisters (bubbles of hot and expanding air) discoloration through bleaching, warping and cracks which are vulnerable to leakage.
Synthetic polymers such as plastics, as well as naturally occurring polymer materials such as wood, are extensively used in building construction and other outdoor applications where they are routinely exposed to sunlight. The UV-B content in sunlight is well known to have an adverse effect on the mechanical properties of these materials, limiting their useful life. Most commercial organic-based polymers used in the building and construction undergo photolytic and photo-oxidative reactions during exposure to solar UV radiation. It is common to see a rapid decline in surface, colour and mechanical properties.
Facades with open rainscreen cladding expose more of a building to the effects of UV light. In those cases, a UV resistant membrane is enormously beneficial in protecting the building and maintaining its long-term condition.
Building Regulations and guidelines for UV resistant façade membranes
Water Penetration Resistance
As well as providing protection against the harmful effects of solar exposure, a UV resistant membrane should ensure the building envelope has a high level of water repellence – especially in open/ventilated facades and jointed cladding – as well as providing high breathability to help control condensation and keep moisture away from the building’s interior. When a membrane is highly breathable, moisture quickly diffuses from within the building to provide good climatic comfort and to ensure that the building’s structure remains in good condition.
A water tightness rating of W1 is recommended for open facades and high-rise buildings which are more exposed to driving rain. Membranes which offer exceptional imperviousness to both wind and rain will increase the lifetime and effectiveness of the insulation. It is important to choose a membrane that retains all of these performance qualities when exposed to high UV and heat levels. ITP’s membranes UV resistant facade membranes maintain all key performance levels in the face of long-term exposure to solar light and heat.
Fire Safety Regulations
For buildings with external walls over 18m (11m in Scotland), breathable UV protection membranes must achieve a minimum Euroclass B,s3-d0 fire rating.
UV Resistance in Breather Membranes
Breather membranes used behind open-jointed cladding must resist UV exposure. Requirements include:
Testing to a minimum of 5000 hours UV ageing with an energy threshold of 812MJ/m2 (BS EN 13859-2).
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