.DURING A EUROPEAN structure boom that started in the 1960s, a novel form of building component began to become used. Enhanced autoclaved aerated concrete, known as RAAC, is actually pre-cast in a factory, commonly in to slabs, just before being actually required to a building website where it could be quickly assembled into component of a building. Although RAAC is still utilized in several component of the globe, Britain is actually having specific complications using it. In some structures the material is actually collapsing in 2018 it led to an institution roofing system to failure. A number of institutions have actually been closed as well as other properties, consisting of health centers, are had an effect on. This is actually leading to concern one of the public and a political frustration for the federal government. What is RAAC, and why performs it become dangerous?