A preferred building material used worldwide for over 80 years in a variety of climates and applications, Autoclaved Aerated Concrete (AAC) combines the advantages of noncombustible concrete with the workability of wood.
AAC is a lightweight, precast concrete made of all-natural raw materials. It is an economical, environmentally friendly, cellular, structural material that provides thermal and acoustical insulation as well as fire and termite resistance. AAC is available in a variety of forms ranging from wall, floor and roof panels, to blocks and lintels.
AAC offers a UL fire resistance rating of 1 hr. per 1 inch of material thickness, thus a 2” panel has a 2 hr. rating for fire wall applications. Depending on density, AAC has a compressive strength of 300 to 900 psi. With an R-value of 1.25 per inch, AAC significantly outperforms conventional concrete or poured concrete. An 8” AAC wall performs much better than a conventional wood stud wall with R-30 insulation.