Although it can be made air permeable to some degree high resistance membrane is only suitable for use in cold ventilated pitched roof systems.
Roof breather membrane.
Prevent leaks with roof membrane and tile underlayment.
Cedar breather underlayment from benjamin obdyke benjamin obdyke cedar breather ventilated underlayment cedar breather protects the beauty and life of wood roofing by providing a space for continuous airflow between the solid roof deck and shingles or shakes.
If there is no ridge ventilation the breather membrane should go over the ridge and overlap each side of the ridge line by the required overlap.
On roof valleys ensure the breather membrane is extended by a minimum of 300mm on each side measured from the centre of the valley.
However we d still advise having another form of ventilation in case the breather membrane is not enough or excess moisture is produced.
Breather membranes otherwise known as breathable membranes are used within external wall and roof constructions in order to prevent damp in buildings.
For optimum performance use cedar breather with rapid ridge 7 ridge vent.
Find breathable membrane from rhinovent sark it at toolstation.
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.
Free delivery over 25.
Tyvek supro is the market leading breather membrane and is a water resistant membrane suitable for all supported and unsupported pitched roof applications in commercial and residential buildings.
They work by allowing insulated structures to easily release excess moisture vapour into the atmosphere.
Vapour permeable breather membranes protect against wind insects dirt weather penetration whilst insulating your property.
Breather membranes or breathable membranes can be used to keep the internal components of wall and roof structures dry.
Often without the need for ventilation.
Roof breather membrane on the other hand allows far greater moisture transfer making it crucial that there is adequate air movement above.