OUR APPROACH
About AAC
How we build, and why it's better.
THE MATERIAL
What is autoclaved aerated concrete?
Autoclaved aerated concrete—better known as AAC—is a lightweight, solid masonry material developed in Sweden during the 1920s. The modern process was patented in 1924, and commercial production began in 1929. Nearly a century later, AAC is used in residential, commercial, and industrial construction around the world. It is made from mineral ingredients such as sand, lime, cement, gypsum and water. An expanding agent creates millions of microscopic air cells before the material is cured with high-pressure steam. The result is a precision-made wall material that combines strength, insulation, fire protection and acoustic performance in one system.
The homeowner advantage: AAC makes high-value performance part of the home’s permanent structure—not simply an upgrade hidden behind the finishes.
THE METHOD
How AAC Is Made
From raw minerals to precise, ready-to-build blocks — four steps that make AAC as clean to work with as it is to live in.
01
Natural ingredients
AAC starts with simple, abundant raw materials — sand or fly ash, cement, lime, water, and a small amount of aluminium paste.
02
Aeration
The aluminium reacts with lime to form millions of tiny hydrogen bubbles, expanding the mix and creating AAC’s signature air-pocket structure.
03
Steam curing
The material is cured in an autoclave under high-pressure steam, hardening it into a stable, dimensionally precise product.
04
Precise blocks & panels
The result is cut into exact blocks and panels that assemble cleanly on site — less waste, faster builds, tighter tolerances.
QUIET COMFORT, SOLID PROTECTION, LASTING VALUE—BUILT INTO THE WALLS.
Why AAC Makes A Better Home
Autoclaved Aerated Concrete (AAC) is a lightweight masonry material made from sand, lime, cement, gypsum and water, cured with high-pressure steam to create millions of insulating air cells. Used worldwide since the 1920s, it combines strength, insulation, fire protection and soundproofing in one system.
Fire resistance
AAC is non-combustible and can withstand direct flame for hours, giving your family critical extra protection.
Mold & pest resistant
Inorganic and breathable, AAC gives mold, mildew, and termites nothing to feed on.
Thermal efficiency
Millions of tiny air pockets make AAC a natural insulator, holding indoor temperatures steady and cutting energy use.
Sustainable
Made from abundant natural minerals with low waste, and it dramatically reduces heating and cooling demand for life.
Sound dampening
Dense, solid walls block outside noise — rooms stay calm, private, and quiet.
Strong yet lightweight
Structurally solid but up to 80% lighter than standard concrete — precise to build with and built to endure.
Key Benefits
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Durability: Mineral-based masonry that won't rot, warp, or decay—unlike timber framing.
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Quiet: Solid mass + air cells block and absorb sound for calmer, more private rooms.
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Fire Protection: Noncombustible material offering multi-hour fire resistance, built into the wall itself.
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Energy Efficiency: Continuous insulation plus thermal mass smooths temperature swings, reduces thermal bridging, and supports strong airtightness—leading to steadier comfort and lower HVAC strain.
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Weather Resilience: Engineered with reinforcement for wind loads; resists moisture-driven decay (though not waterproof); lighter than concrete, reducing structural and seismic loads.
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Healthy Indoors: Inorganic, VOC-free, mold- and termite-resistant; pairs well with mechanical ventilation.
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Long-Term Value: Factory-precise units create straighter walls, less waste, and design flexibility for any architectural style.
AAC delivers quiet, resilient, energy-efficient, low-maintenance performance—permanently built into the structure, not just the finishes.
Performance varies by product, assembly, and workmanship. Sources: European AAC Association, International Masonry Institute, U.S. DOE.
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WHAT WE OFFER
Sustainability During Construction and Use
The largest environmental payoff often comes after the product leaves the factory: precise installation, lower waste and decades of energy-conscious performance.
Less thermal bridging through the wall
In a timber-framed wall, studs repeatedly interrupt cavity insulation. A continuous AAC wall largely avoids that repeating pattern because the masonry itself contributes thermal resistance across most of the wall area. Thin joints help preserve that continuity. When windows, doors, roof connections and utility penetrations are sealed carefully, AAC can support a tight enclosure. Lower uncontrolled leakage means less conditioned air is lost and less energy is spent replacing it.
Healthy materials support sustainable living
Sustainability includes the quality of the environment created for people. AAC's base material does not emit VOCs, does not provide nutrients for mold and supports quieter interiors. More stable interior surface temperatures can reduce cold-wall discomfort, while intentional ventilation and filtration bring in fresh air without relying on random leaks
AAC naturally reabsorbs carbon dioxide
AAC contains calcium-bearing compounds created from cement and lime during autoclaving. Over time, atmospheric carbon dioxide enters the porous material and reacts with those compounds to form stable calcium carbonate. This process, called recarbonation, permanently binds a portion of CO₂ during the building's service life. Peer-reviewed research finds that AAC can recarbonate throughout its porous mass rather than only along a thin exterior front. Uptake can continue after demolition, especially when clean AAC is crushed and more surface area is exposed.
A representative European AAC Association life-cycle model, based on an independently verified EPD for AAC with a bulk density of 24.2 lb/ft³, estimates a maximum uptake of 4.81 pounds of CO₂ per cubic foot at complete recarbonation. The model projects about 80 percent by 50 years—3.85 lb/ft³—and about 95 percent by 80 years—4.57 lb/ft³.
