Installing insulation over rather than between the rafters eliminates concerns about thermal bridging and overall saves on the total thickness of insulation used.
Roof sarking and insulation.
Sarking provides a vapour barrier.
Roof sarking there s only one opportunity to install roof sarking and that s while you build.
Improve the performance of your roof.
The key is good detailing.
The main purpose of sarking is to provide additional insulation for your home but it has a number of other benefits including.
Combined with a protective waterproof cover sarking ensures that your property is kept dry while your roof installer executes your metal roofing installation.
During metal roof insulation sarking is installed first providing some protection against the rain during the installation process.
In australia foil is the most common product used for sarking.
Once your roof is in place sarking forms a vapour barrier.
It helps to regulate the temperature in the roof cavity improving thermal performance it protects your home against thunderstorms and rain with moisture reduced in the roof cavity mould is unable to grow.
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.
It is fitted under the battens and made from a variety of materials such as felt foil or polystyrene.
An over rafter insulation layer can help to achieve a well insulated airtight building with a useful and comfortable habitable room in the roof space.