Roof Breather Membrane Installation

At abutments turn the underlay up by at least 100mm.

Roof breather membrane installation. 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. A breather membrane is a sheet of material that is installed to the outer side of insulation on both roofs and walls. With dupont tyvek your roof is protected against rain wind. Lay the breather membrane.

Step by step to a watertight and functional roof with dupont tyvek installation guidelines. With a wet verge a verge that use mortar bedding as a fixing the breather roof membrane needs to lap onto the masonry by at least 50mm. Roofing underlays breather membranes. 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.

It also prevents any form of water whether it is moisture surface water or rainwater from entering the roof or interior space. Firstly it is important to have an eaves support tray or a uv resistant membrane that is fitted. It allows water vapour to pass through from the inside of the roof or walls without requiring any ventilation to be installed directly above the insulation layer. Some breathable membranes are also approved as being air open as well as vapour permeable.

Novia black 115gsm roof and wall breather membrane 1 5m x 50m 62 38 ex vat 74 86 inc vat novia black pro 145gsm roof and wall breather membrane 1 5m x 50m. You may also need to check the ventilation requirements of the membrane will be met before you begin the installation. Thermo reflective membranesvapour control layers vcls. If condensation is allowed to form within the roofing it isn t long before wood decks become wet and damage sets in.

Breather membranes are installed to the outer side of the insulation and each roll should contain detailed fitting instructions. Roof and building membranes. Where a roof includes valleys ensure the breather membrane is extended by a minimum of 300mm on each side measured from the centre of the valley. For optimum performance use cedar breather with rapid ridge 7 ridge vent.