Is Sarking Required Under Metal Roof

The importance of sarking.

Is sarking required under metal roof.

Sarking under metal roofs can improve thermal performance in warmer climates. For flame zone fz areas sarking is still required but additional precautions must be taken and the bradford bushfire roofing systems design guide should be consulted. It is usually installed directly underneath your roof and acts as an additional barrier for heat and moisture. Sarking under metal roofs.

The flexible membrane is usually installed under the battens to provide thermal insulation and to prevent water and dust penetration in the roof space. If your home is required to comply to a bal 12 5 to bal 40 area classification incorporation of sarking with a flammability rating 5 is mandatory. Find out which product is right for your home. Sarking under residential metal roofs is popular because of the many benefits it delivers for little additional cost whether it s as reflective thermal insulation a protective second skin against burning embers in a bushfire area or as a way to control condensation csr bradford has a product solution to suit your application.

Sarking is a pliable membrane that sits under your roof like a protective second skin. Thermoseal sarking forms a barrier under your roof against wind driven rain and dust. Cavity which can allow the metal roof sheet temperature to drop below dew point increasing the risk of condensation formation. Roof sarking is a pliable laminated membrane containing an aluminium foil lining that s positioned under both metal and tile roofs.

The use of anticon roofing blanket or vapour permeable sarking directly under the roof sheet is recommended to reduce this risk. In bushfire prone areas flying embers cannot enter this space through the roof due to sarking protection. Like a protective second skin. Reflective foil commonly referred to as sarking.

It is installed when a house is built during home extensions or if you re renovating your home or restoring your roof. Sarking is a vital part of your home s insulation system.