InsulGuard Cavity Shield is a unique, locally made cavity wall insulation made for Australian homes with a double brick cavity.



Our Unique Cavity Wall Insulation

In the average home, 25% of your heat escapes through the walls every winter, whilst in summer your walls can be responsible for up to 20% of your heat gain. This means that an uninsulated double brick cavity offers little barrier between external temperature variations. This is where InsulGuard Cavity Shield creates comfort for your home.

How Cavity Shield Works...

Our cavity wall insulation sits between the inner skin and the outer skin of your double brick cavities. This creates a thermal break between the two brick skins, reducing heat transfer and protecting your home from external temperature changes. Not dissimilar to a bean bag bead, Cavity Shield is made predominately from expanded polystyrene. No different to how a thermos keeps your coffee warm, or an esky keeps your beers cold, polystyrene is one of the most widely used insulators worldwide.

Front right elevation prior to Cavity Shield insulation.
Front right elevation after Cavity Shield insulation installed.

Uninsulated, a double brick cavity is thermally rated traditionally at R0.4. With the addition of Cavity Shield, a standard 50mm double brick cavity will improve your wall thermal rating to R1.8-R2. According to the National House Energy Rating Scheme (NatHERS), in Western Australia this can improve your overall star rating by 0.8 – 1.2 star increase. This increase in energy efficiency makes your home more sustainable; reducing on power consumption and reducing your home’s carbon footprint.



Research shows that energy and moisture flow in and out of the double brick cavity. As CAVITY SHIELD is constructed from polystyrene, the product will not hold water. Due to the spherical nature of the bead, water falls through the cavity without transference. Cavity Shield is the only product on the Australian market that can claim to be 100% moisture resistant.

Michael takes you through some of our latest installs...

Ready to get started? Supplied & Installed from $1,800*