Reinforced autoclaved aerated concrete (RAAC) is a lightweight material that was used mostly in flat roofing, but also in floors and walls, between the 1950s and 1990s. It is a cheaper alternative ...
Various concerns have been raised about the use of a type of concrete in the construction of schools and other public buildings known as RAAC (reinforced autoclaved aerated concrete). RAAC is a ...
A Surrey theatre's roof and floor are a "critical risk" with many panels identified in a report as having reinforced autoclaved aerated concrete ... in the theatre's flat roof, pitched roof ...