Only noticed this in the roof space of a chalet bungalow. Other side of the plasterboard is a shower that was put in 10 years ago-think the plastic sheet was already there beforehand.
Thinking either the shower has been letting water in (no sign of leaks anywhere else or ceiling below) or condensation in the plastic sheet. Anyone offer any advice before we have to rip the bathroom out thanks in advance.
Thinking either the shower has been letting water in (no sign of leaks anywhere else or ceiling below) or condensation in the plastic sheet. Anyone offer any advice before we have to rip the bathroom out thanks in advance.