The insulation properties of any building are measured by calculating of the ‘R-Value’ of the materials used in the construction. The R-Value describes the amount of thermal resistance the construction materials possess. In simple terms the R-Value is a number given to describe the heat transfer that is stopped by the building materials used in the construction of your home. Thus the higher the R-Value, the better the insulation properties the building is said to have.

Being a thick polystyrene brick with a full concrete core, Thermacell has some of the highest insulation properties in the building industry. When compared to tradition building materials like glass fibre batts, weatherboard, solid brick and brick veneer – and even solid concrete walls – Thermacell’s R-Values are exceptionally high.

The R-ratings quoted in our advertising have been formulated by engineers at RMax, who are the largest polystyrene moulders in Australia. The CSIRO and Government authorities in Victoria have accepted their calculations. Here at Thermacell we don’t make extravagant claims for our blocks in the areas of R-ratings. It’s easy to make claims, but not so easy to back them up; we don’t make claims that can’t be backed up.

If these matters are important to you, a word to the wise: don’t believe everything you read, but ask for proof of the claims made in manufacturers’ advertising.

Building With Thermacell

*Note: R-Values for the table above are based on statistics sourced from the Sustainable Energy Authority Victoria and the CSIRO Australia. The Thermacell R-Value given above is based on a completed Thermacell wall and has been calculated independently by RMAX engineers, the largest polystyrene molders in Australia.


Over the nearly thirty years Thermacell has been in business, we have worked with several different builders, construction companies and tradesmen. We have compiled a list of just some of these builders and tradesmen Read More

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P.O Box 447
Victoria, 3912
David Bennett (Managing Director) - 0412 577 431

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