Permo Light is a strong three-layer, vapour-permeable roof underlay, suitable for pitched roofs. This membrane is watertight, whilst allowing the roof structure to breathe. Permo Light is BBA approved for cold and warm roofs. Area of application Suitable for Cold and Warm Roofs. All zones with taped headlap. Key Features Limits air leakage in a sealed roof application. BBA approved low resistance membrane.
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