Sarking is a layer of flexible insulation typically installed under roof tiles when a home is being constructed. It consists of aluminum foil laminated onto paper or plastic backing with a flame retardant adhesive and fibreglass reinforcing mesh, and is manufactured in sheet form. Sarking performs a dual function, helping to keep your home insulated from the heat of summer whilst retaining warmth in the winter. This thermal lining is a very cost effective means of insulating a home. The use of sarking can be mandatory or discretionary depending on a variety of local criteria including requirements for bushfire prone areas, wind speed and the specific construction specifications of your roof.
Foils are a versatile material for use in building applications, as they provide:
When purchasing sarking or contracting a builder to install insulation in your home, ensure the product meets the following criteria:
Insulation comes in a variety of materials all utilised for their thermal resistance. They are typically installed in the ceiling/roof, floors or walls of a home, and act as a buffer against heat loss during winter, whilst slowing the heat transfer from the walls or roof into the living areas in summer. Choosing appropriate insulation is one of the most cost-effective ways of improving the comfort and energy efficiency of your home. The effectiveness of insulation is evaluated by its r-value, so look out for this when purchasing a product or consulting a supplier. The r-value refers to the thermal resistance of the product, and often correlates to the thickness of the material. R-values range from between 1 and 4, with a higher figure indicating a greater heat resistance, and therefore energy efficiency.
Insulating your home can:
If you need advice on any aspects relating to the insulation of your home contact a reputable builder or installer.
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