Has anyone ever used the rolls of polystyrene on old walls before wall papering. I guess it's to stop condensation and mould forming as I have an old cottage with this set up and I need to re-paper the walls in the lounge.
Good evening Sire, and welcome to our Forum.
I have seen polystyrene used on walls, and i think it is/was used for "warming" colder walls up. The painters on here will probably tell you more about the use of it nowadays.
Its fire proof now but it was used to warm up the surface on older walls that never had any cavity or had damp or condensation problems.
When papering over the top of it you need to use a ready mixed adhesive for your paper to stick propery.. Not easy to use a seam roller on the joints either as you squash the polystyrene.
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