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Vapour Roofing Felt
Your existing felt may be perished on its lower edge, use the all new Harcon VPU premium roofing underlay.It allows warm moist air generated in the building to pass freely through it, helping to prevent condensation in the roof. As it is waterproof the water drops created by the condensation which forms on the primary roof covering will simply roll down the Harcon VPU into the gutter. |