Insulation, Ventilation and Sarking

Information on Roof Insulation, Ventilation and Sarking

The combination of insulation, sarking and ventilation keeps your home cooler in summer, warmer in winter, and more energy efficient all year round, resulting in greater cost savings on energy and lower carbon emissions.

Insulation:
Insulation can be installed in the ceiling cavity to act as a temperature barrier. Without insulation, even the best designed and constructed home will allow heat to pass through external surfaces.

As much as 42% of a home’s heat can transfer through the ceiling alone. Insulation helps keep a more consistent temperature in your home and effectively limits the range of temperature fluctuations, reducing the need for artificial heating and cooling.

Ventilation:
To complete a well designed, sustainable roofing system, Bristile Reroofing also recommends the use of roof ventilators in conjunction with vented gables and soffits.

By moving air in and out of the roof cavity, roof ventilators help to minimise temperature build up. A wind powered ventilation system uses the exhaust forces created by the turning turbine rather than relying on electricity.

Sarking:
When building your roof, Bristile Reroofing recommends the use of roof sarking, a strong bonded membrane with several layers which is laid under tiles. Sarking is designed to reflect as much as 95% of heat away from your home and acts as a secondary barrier to any water run off.

In addition, sarking prevents dust and moisture build up in the ceiling cavity. Keep in mind, roof sarking can only be fitted during roof installation or reroofing, so these are the only opportunities to have your roof sarked.

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