Breather Membrane Felt Underlay – Durable – Residential & CommercialProduct Overview Our High Performance Breather Membrane Felt Underlay offers exceptional resistance against wind driven rain and external moisture ingress. This vapour permeable underlay is ideal for both ventilated and non ventilated cold and warm roof constructions, ensuring durability and long term service. Constructed from high performance composite layers, the membrane maintains tensile strength and dimensional stability, facilitating
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