Fish, how is it that at the moment all buildings are failing fire regs, were they not signed off as fire safe once the job was completed. Struggling to get me head around how they were all passed as OK in the first place but now they are not. What's gone wrong with the system that should be in place.
It will depend on what the specification requirements were at the time of the tender and fitting for those specific buildings.
It's a bit like weatherproof & waterproof, both you would think are similar but obviously only 1 would resist submersion, but it would still be subjected to caveats. It's the same with fire retardant & resistant and a few more description of fire related materials, some will still burn, but much slower and some won't be flammable at all. It depends on what spec was assigned at the time, maybe the spec has now been upgraded so hence why there all failing but at the time they were cladded the lower spec was deemed acceptable, I don't know?