under the wallpaper in an upstairs bedroom was what looked like polystyrene
We have this. It's absolutely horrible but it's just a thin polystyrene layer. It was a 70s/80s thing to improve insulation (whilst also creating a massive fire risk). I won't be sorry to see the back of it when we eventually decorate.
We have this. It's absolutely horrible but it's just a thin polystyrene layer. It was a 70s/80s thing to improve insulation (whilst also creating a massive fire risk). I won't be sorry to see the back of it when we eventually decorate.