I'm really hoping that this will be seen by someone with some fire safety expertise. It's a bit of a WWYD really.
Some relatives of mine would love to have my DD1 to stay, and she'd love to go- (and I'd love a break) but the room she would sleep in has polystyrene ceiling tiles, old ones, probably put in in the 80s. I've heard they're a HUGE fire risk and I'm a bit reluctant to let her stay tbh.
It's close relatives, so I can discuss it with them without offending, and I could offer to help take them down. But obviously it would be easier if it wasn't necessary, so if I'm making a fuss over nothing please tell me so!