Wayne Radinsky September 11, 2023 10:14pm RAAC crisis map. I stumbled across this map not knowing what the "RAAC crisis" was. Turns out it's buildings collapsing because of a type of concrete called RAAC. RAAC crisis map #architecture #chemistry RAAC map - Google My Maps Last updated 8 September 2023. If you have any feedback, such as missing buildings, email raac@matteason.co.uk