Roof Felt Breathable Membrane

Breathable roof membranes are generally installed on the cold side of insulation in the roof structure ie the side closest to the external area.

Roof felt breathable membrane.

Excellent tensile tear strength. Roofing felt is a breathable sheet which allows humidity and moisture to escape from beneath it thus maintaining a dry and healthy deck. For use in tiled slated or metal roof systems. 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.

Highly affordable underlay to protect against rain dust and pollution. Dupont tyvek supro breathable membrane 1m x 50m 145gsm. Apex silver breather membrane 1m x 50m 120gsm. Warm cold roof applications.

Breathable roofing membrane prices. Of course it is a bit more technical than that but this is the basic idea behind how felt works. Why breather membranes are required moisture often passes into the roof space as vapour and then condenses when it reaches a cool surface. Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes.

Generally speaking roofing felt is a felt paper that is soaked in asphalt and other water resistant compounds to produce a membrane. Breathable roofing felt prices vary widely depending on their properties and might range from as little as 0 54 per square meter cromar vent 3 light right up to 3 30 per square meter for more specialist products like klober permo air. Lightweight waterproof flexible. The breathable roof membrane should drape slightly between the timber rafters or counter battens meaning there is a dip of around 10 15mm.

Felt is commonly sold in either 15 or 30 rolls measuring 36 inches wide. Breather membranes or breathable membranes can be used to keep the internal components of wall and roof structures dry. No additional ventilation required. They work by allowing insulated structures to easily release excess moisture vapour into the atmosphere.

Breathex is our new synthetic roofing underlayment which carries on the well proven tradition of breathability. Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer. Cromar vent 3 classic breathable membrane 1m x 50m 115gsm. Economical membrane suitable for supported and unsuported roof systems.

Once you ve checked that this is the case add temporary clout nails to the top of the membrane try to ensure they are above the line at which the second length of membrane will overlap.