AAC Panels & Systems

AAC panels are strong, lightweight and easy to handle, making them a practical choice for builders looking to improve efficiency on site. They offer excellent thermal performance, strong acoustic insulation, fire resistance, termite resistance and a smooth render-ready finish. Because AAC is lighter than traditional concrete and masonry, it can also help reduce structural loads and speed up installation. The large panels make it much faster to install than brick, saving weeks onsite when compared to rendered brick.

AAC panels are commonly used for external walls, cladding, facades, intertenancy and party walls, boundary walls, flooring systems, fire-rated walls, acoustic barriers and medium-density residential construction. Depending on the system and specification, AAC can be used across detached homes, townhouses, apartments and commercial projects.

AAC stands for Autoclaved Aerated Concrete. It is a lightweight concrete-based building material manufactured with tiny air pockets throughout the material, then cured under high-pressure steam in an autoclave to create strong, stable panels or blocks.

AAC is the material category, while Hebel is a brand of AAC products. In the same way that plasterboard can be sold under different brands, AAC panels and blocks are available from different manufacturers. Hebel is one of Australia’s most recognised AAC brands, but it is not the only AAC system available. Helix AAC and James Hardie Gravis are quality alternatives to Hebel.

AAC may be more cost-effective than traditional concrete in some applications, particularly when installation speed, reduced weight, easier handling and potential structural savings are considered. The final cost depends on the wall system, panel thickness, project design, labour, finishes and site requirements, so it is best to compare installed system costs rather than material cost alone.

AAC blocks are smaller masonry units that are typically laid like bricks or concrete blocks using mortar. AAC panels are larger, steel-reinforced panels designed to cover more area faster and are commonly used for external walls, cladding, facades, intertenancy walls, floors and fire-rated systems. Panels are often preferred where speed, consistency and engineered system performance are important.

AAC panel cost varies depending on the brand, panel thickness, wall system, project size, fixings, coatings, labour and delivery requirements. For an accurate price, builders should request a project quote based on plans or measurements so the correct AAC panel system, quantities and accessories can be allowed for. Dahlsens provides competitive trade pricing on AAC panels.

AAC can be competitive with brick, especially when looking at the total installed wall system rather than the material price alone. AAC panels can cover large areas quickly, may reduce labour time and can help speed up the build compared with traditional brickwork. Actual savings depend on project design, labour availability, finish selection and site conditions.

AAC panels are often faster to install than brickwork because each panel covers a larger area and is designed as part of an engineered wall system. This can reduce time on site and help builders reach lock-up sooner. Installation cost will depend on the system, installer, project scale, access, fixings and finish, so it is best to compare complete installed costs for your specific project.