Roof Sarking Insulation

In australia foil is the most common product used for sarking.

Roof sarking insulation.

Thermoseal roof sarking is a protective second skin installed under tiles to minimise weather related water damage such as wind driven rain entering the roof cavity. Sarking boards placed with a 2 3 mm gap in between each one. Insulation which should sit either between and under or between and over the rafters to get the required u value. Acts as an effective secondary skin to your home or building to minimise draughts thereby allowing bulk wall insulation to perform more effectively.

Once your roof is. Roof sarking is an thin insulating membrane that helps protect the roof space from water and dust. Enviroseal proctorwrap roof sarking is an additional layer of protection installed under tiles to minimise weather related water damage such as wind driven rain entering the roof cavity. Sarking and the building code of australia.

It is mandatory under the building code of australia bca that all tiled residential roofs regardless of roof pitch with a rafter length greater than 6 metres must be sarked. Thermoseal reflective foil roof sarking is a non permeable vapour barrier product designed to reduce the transmission of moisture into the home and contribute a reflective air gap r value to the roof system when positioned to adjacent to an inward or outward facing air cavity. Sarking provides a vapour barrier. What is roof sarking.

Csr recommends that all tiled roofs with a pitch of less than 20 are sarked and the bca mandates this requirement for rafter lengths greater than 4 5 metres. Colorbond steel is designed to be thermally efficient but because roof sarking has a high reflective quality it will improve the thermal performance of the roof even more helping to keep your house cooler in summer. A breathable membrane such as kingpan nilvent which eliminates the need for roof ventilation. If you find a tear in your sarking the insulation that it provides will be less efficient.

What is roof sarking. During metal roof insulation sarking is installed first providing some protection against the rain during the installation process. It is fitted under the battens and made from a variety of materials such as felt foil or polystyrene. A strong reinforced pliable building membrane designed for use as sarking under residential and commercial metal roofs.

If rain enters the roof it can wet insulation making it less effective and cause ceiling staining in plasterboard. There s only one opportunity to install roof sarking and that s while you build. Combined with a protective waterproof cover sarking ensures that your property is kept dry while your roof installer executes your metal roofing installation. If rain enters the roof it can wet insulation making it less effective and cause ceiling staining in plasterboard.