Roof Sarking Insulation

What is roof sarking.

Roof sarking insulation.

Once your roof is. Sarking boards placed with a 2 3 mm gap in between each one. There s only one opportunity to install roof sarking and that s while you build. In australia foil is the most common product used for sarking.

A strong reinforced pliable building membrane designed for use as sarking under residential and commercial metal roofs. Acts as an effective secondary skin to your home or building to minimise draughts thereby allowing bulk wall insulation to perform more effectively. 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. It is fitted under the battens and made from a variety of materials such as felt foil or polystyrene.

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 sarking solution to suit your needs. Combined with a protective waterproof cover sarking ensures that your property is kept dry while your roof installer executes your metal roofing installation. Insulation which should sit either between and under or between and over the rafters to get the required u value. 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.

How to repair roof sarking. What is roof sarking. Sarking and the building code of australia. If you find a tear in your sarking the insulation that it provides will be less efficient.

If rain enters the roof it can wet insulation making it less effective and cause ceiling staining in plasterboard. 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. During metal roof insulation sarking is installed first providing some protection against the rain during the installation process. Aside from providing insulation and leakage protection.

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. A breathable membrane such as kingpan nilvent which eliminates the need for roof ventilation. Roof sarking is an thin insulating membrane that helps protect the roof space from water and dust. 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.