Roof Insulation Ratings Australia

See the department of energy s doe ranges for recommended levels of insulation below.

Roof insulation ratings australia.

Choosing the best insulation for your home is important that s why we recommend you consider all your options beforehand. Direction of heat flow. R value is a measure of insulation s ability to resist heat traveling through it. How to install insulation.

Insulation level are specified by r value. An uninsulated ceiling can contribute to 35 of your homes winter heat losses and summer heat gains. The table below shows what levels of insulation are cost effective for different climates and locations in the home. Typical recommendations for exterior walls are r 13 to r 23 while r 30 r 38 and r 49 are common for ceilings and attic spaces.

Direction of heat flow. The greater the r value the greater the resistance to heat transfer and the greater the insulating effect and subsequent energy savings. Light coloured roofs 0 4 absorptance 0 6 r4 6. All insulation materials that are sold in australia must meet australian standard as nzs 4859 materials for the thermal insulation of buildings even if they are imported.

Dark coloured roofs absorptance 0 6 r5 1. Ask about recycled content and how easily the product can be recycled after use. Roof insulation r value ranges from r2 5 to r7 0 and are between 120mm and 290mm thick. R values the r value is a measure of a material s resistance to heat flow known as thermal resistance.

The r value is a measure of the insulation batt s resistance to heat flow also known as thermal resistance. If you live in cooler climates such as melbourne sydney or adelaide then we recommend upgrading to r5 0 or r6 0 roof insulation. In australia ceiling insulation is available in a variety of brands and r values ranging from a r3 5 to r7 0. Those in the freezing alpine areas of australia require insulation with at least an r value of 6.

Compare the environmental benefits of different products. Very light coloured roofs absorptance 0 4 r4 1. It s recommended that you install foil backed insulation in your roof to an r value of r1 0 or higher. We recommend installing a minimum of r4 0 ceiling insulation.

With australia s rising energy prices we recommend choosing the highest r value you can afford.