We bought an ex-janitors house last year. It has a flat roof. The school has been closed due to safety concerns as it was built using RAAC. As our house was built at the same time, for school use, I'm 99.9% sure that our roof is made of the same material but the council won't confirm this.
Who do I get to check? Structural Engineer? Building Surveyor? Our roof has been refelted (prior to us taking ownership) so appears in good condition and is watertight. However, we have no way of knowing what condition the actual concrete is in.
We've just discovered that the house needs completed rewired, so trying to figure out whether to get the roof replaced first.