The data doesn't lie.
Dramatically lower carbon footprint
AAC generates just 11 kg CO₂ per m² during manufacturing. Clay bricks produce 129 kg CO₂ per m² — AAC is 91% lower. For a typical residential project, this represents thousands of kilograms of avoided embodied carbon.
Water-efficient construction
AAC requires only 0.39 litres of water per m² of wall, versus 2.4 L/m² for clay bricks and 0.9 L/m² for concrete blocks. Wastewater in the manufacturing process is fully recyclable.
Reduces lifetime climate-control costs
AAC is 7.5× more thermally insulated than clay brick and 12.5× more than concrete brick. Buildings constructed with Aertec AAC Blocks typically see a reduction in HVAC energy costs of up to 30% over the building's lifetime.
Near-zero construction waste
Dimensionally accurate AAC Blocks reduce mortar waste and off-cuts to under 5%. Service chasing creates negligible debris with no structural damage, and all AAC waste material is fully recyclable.
AAC vs clay brick & concrete block.
Built for people, not just structures.
AAC produces no toxic gases during manufacturing or in service — safe for workers and occupants throughout the building's life.
AAC's humidity diffusion properties actively prevent condensation and mildew formation, supporting better indoor air quality.
AAC is highly sound-absorbent, effectively dampening airborne noise between rooms and from external sources.
AAC's closed-cell structure and humidity diffusion properties resist mould formation, improving long-term indoor air quality and reducing maintenance requirements.
AAC is non-combustible with a superior 4hr fire rating compared to other common masonry materials — it does not contribute to fire spread.
Lightweight with a high strength-to-mass ratio — superior seismic tolerance than dense conventional masonry, important for Cape Town and Western Cape builds.