.DURING A EUROPEAN structure boom that began in the 1960s, an unfamiliar kind of construction material began to be utilized. Bolstered autoclaved aerated concrete, called RAAC, is actually pre-cast in a manufacturing plant, commonly into planks, just before being actually needed to a construction site where it could be rapidly assembled right into portion of a property. Although RAAC is actually still made use of in many portion of the world, Britain is possessing particular issues along with it. In some buildings the product is falling apart in 2018 it induced an institution roofing system to collapse. A variety of schools have actually been actually closed as well as other properties, consisting of medical centers, are had an effect on. This is triggering problem amongst the general public as well as a political frustration for the government. What is RAAC, as well as why performs it end up being dangerous?