Brick cavity insulation is a vital upgrade for Australian homes, especially those with double brick or brick veneer construction. By insulating the wall cavity, homeowners can significantly reduce heat transfer, leading to improved comfort and lower energy bills.
What Is Brick Cavity Wall Insulation?
Benefits
- Energy Efficiency: Reduces heating and cooling costs by minimising heat transfer through walls.
- Enhanced Comfort: Maintains a consistent indoor temperature year-round.
- Moisture Control: Proper insulation can help prevent condensation and related issues.
- Soundproofing: Improves acoustic insulation, reducing external noise.
- Increased Property Value: Energy-efficient homes are more attractive to buyers.
Does Earthwool® Work for Brick Cavity Insulation?
Ideal for Brick Veneer, Not Double Brick Cavities
Earthwool® Wall Batts are designed for open-frame installation in brick veneer homes — the most common wall type in Australia. These batts sit between the timber or steel studs, behind the brick exterior. They are not designed for injection into narrow double-brick cavities (where blown-in insulation is required).
Benefits of Earthwool® for Wall Cavities
- Superior Thermal & Acoustic Insulation
Earthwool® Wall Batts help regulate indoor temperatures year-round by slowing down heat transfer through external walls. They also provide excellent acoustic insulation, helping reduce outside noise for a quieter, more comfortable home. - Soft to Handle with Low Itch
Unlike traditional glasswool, Earthwool® uses advanced ECOSE® Technology, resulting in a softer, less itchy product that’s easier and safer to install — perfect for both DIYers and professionals. - Ideal for Brick Veneer Homes & Accessible Retrofits
Designed to fit standard stud spacing, Earthwool® batts are easy to install during new builds or renovations where internal wall frames are exposed. They’re not suitable for narrow cavity fill but ideal for open-wall applications. - No Added Formaldehyde — Safer & Greener
Manufactured without formaldehyde or harsh chemicals, Earthwool® contributes to better indoor air quality. It’s also made using renewable bio-based materials, making it a more sustainable insulation choice.
Choosing the Right Wall Insulation for Your Home
Earthwool® is a high-performance insulation solution specifically suited to wall cavities in brick veneer homes, where it can be easily installed between timber or steel studs during construction or renovation. With outstanding thermal and acoustic performance, Earthwool® helps create a more energy-efficient, comfortable, and quieter indoor environment. Its low-itch handling and sustainable ECOSE® Technology make it a safer and more user-friendly choice for both professionals and DIYers.
However, for solid double-brick homes or retrofit scenarios where wall cavities are not accessible, Earthwool® batts are not suitable. In those cases, homeowners should consult a specialist provider of blown-in or injected cavity insulation systems, which are designed to fill narrow brick cavities without dismantling wall surfaces. Picking the right insulation for your walls helps your building work well and stay strong over time.
Check out our official Wall Insulation Installation Guide.
Install Earthwool® batts in wall frames with our step-by-step DIY insulation guide.
View Wall Installation Guide
