Ceiling Insulation R Value Australia

Ceiling insulation r value matters.

Ceiling insulation r value australia.

The solution is ceiling insulation with a sufficient r value. The regulations in the building code of australia bca that apply to home insulation are complicated. For the purpose of insulation regulations australia is divided into many different. 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.

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. An uninsulated ceiling can contribute to 35 of your homes winter heat losses and summer heat gains. The r value is in essence the measurement of an insulation sheet s ability to resist heat flow. Basically r values range from 1 5 to 7 and the higher the number is the more effective the insulation sheet is at increasing thermal efficiency and thereby insulating your home.

As well as determining specific r value requirements for different parts of a home they also contain requirements for ventilation and various other related issues. In australia ceiling insulation is available in a variety of brands and r values ranging from a r3 5 to r7 0. The higher the r value the greater the insulation performance. When determining how much insulation you need don t guesstimate calculate.

These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. R value measures how well certain building insulation materials can resist heat. How to install insulation. Choosing the best insulation for your home is important that s why we recommend you consider all your options beforehand.

How much insulation does my home need. 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. Without ceiling insulation the indoor temperature will follow the outside temperate and even with a heater on you will likely find yourself struggling to maintain a comfortable indoor temperature especially on those frosty winter evenings. Find your zone on the map and then use the above insulation r value chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.

The r value is a measure of the insulation batt s resistance to heat flow also known as thermal resistance. The greater the r value the greater the resistance to heat transfer and the greater the insulating effect and subsequent energy savings. Those in the freezing alpine areas of australia require insulation with at least an r value of 6.