Waterproof Breathable Roof Membrane

Why breather membranes are required moisture often passes into the roof space as vapour and then condenses when it reaches a cool surface.

Waterproof breathable roof membrane.

Breathable roof membrane is the newer of the two underlays and the one whose popularity has soared in recent years. As moisture can pass through the membrane it passes up and out of the building to help ventilate. Breathable membranes are often water resistant or waterproof and can therefore be used as a temporary covering. However it s recommended that the roof covering is installed as soon as possible.

No additional ventilation required. There are breathable and non permeable membranes. Waterproof breathable membrane test tyvek roofing membranes tyvek s breathable roof membrane test examines 36 waterproof breathable membranes. Roof membranes also known as roofing underlay are large sheets of material that are used to add an extra layer of protection to your roof preventing water ingress within your home.

For use in tiled slated or metal roof systems. Breather roof membranes are water resistant but allow the movement of air through the membrane. Breathable membranes or breather membranes have been designed to improve ventilation and reduce condensation build up within the roof space as well as ensuring insulation remains effective. What are breathable roof membranes.

Non breathable membranes also known as non permeable membranes are entirely waterproof and wind tight. How do i choose a breather membrane. Lightweight waterproof flexible. Waterproof high performance triple layer breathable membrane.

They don t allow condensation to pass through the roof structure so they re installed on the warm side of the insulation to keep the insulation dry and. Breathable membrane low resistance and non breathable membrane high resistance are modern lightweight underlay alternatives to the traditional bituminous type 1f products of yore. Uv stable 4 months exposure clean easy to use. Warm cold roof applications.

Breathable roof membranes are installed on the cold side of the roof s insulation and beneath the batten. Thanks to superior material durability and a unique functional layer the tyvek membrane beats all others.