Ceiling Insulation R Value Australia

The regulations in the building code of australia bca that apply to home insulation are complicated.

Ceiling insulation r value australia.

The greater the r value the greater the resistance to heat transfer and the greater the insulating effect and subsequent energy savings. Generally climates that need to keep the heat in require higher r values. How much insulation does my home need. The r value is a measure of the insulation batt s resistance to heat flow also known as thermal resistance.

Recommended ceiling insulation r values. For the purpose of insulation regulations australia is divided into many different. Insulation calculator knauf insulation australia. The insulation must be water resistant and be continuous from the adjacent finished ground level to a depth of 300mm or for at least the full depth of the vertical edge of the concrete slab on ground.

Those in the freezing alpine areas of australia require insulation with at least an r value of 6. The insulation council of australia and new zealand icanz claims that the payback period for home insulation is around 3 to 5 years. With australia s rising energy prices we recommend choosing the highest r value you can afford. Insulation in zones 1 and 2 typically require an r value of 3 or 4 while properties in zones 3 to 7 will require an r value of at least 5.

Our insulation calculator enables simple calculation of total wall roof ceiling or floor system insulation r values. Firstly it is important to follow the bca requirements for ceiling insulation as australia has many different climate zones and each zone has its own requirements. Roof insulation r value ranges from r2 5 to r7 0 and are between 120mm and 290mm thick. The insulation must achieve a minimum r value of 1 0 in zones 1 to 7 and a minimum r value of 2 0 in zone 8.

Built by esd consultants low impact development lid consulting in melbourne australia the r value calculator is a practical tool to simplify total insulation calculations. By looking at insulation as a long term investment spending a couple of extra hundred dollars on the right insulation now can save you thousands over the life of your home. Our insulation pack calculator will help you work out the area to be insulated and provide a recommendation on the number of packs required for your project. We recommend installing a minimum of r4 0 ceiling insulation.