I'm having real problems with condensation in my bathroom. I couldn't find a similar set of circumstances described in another post, so have created a new thread. I'm not a DIY expert, and am baffled as to what is going on, so thoughts on how I might fix this are welcome please.
We moved into our new house around 5 years ago, and have just reached the point where (I am told) rooms need redecorating. I've started on the shower room. Before I redecorated there was no problem with condensation (although a bit of mould was starting to grow on the ceiling). After redecorating, there is a real problem - five minutes in the shower and condensation is literally dripping off the ceiling plus running down the walls.
The situation is as follows: shower room of size 3.2m x 1.8m x 2.4m; extractor fan venting through a 4" duct in the wall; underfloor heating; well insulated loft space directly above; the room is comfortably warm.
My redecorating included: replacing a basic Manrose extractor with a more powerful Silent Tornado http://www.extractorfanworld.co.uk/st100t-silent-tornado-hi-power-bathroom-fan-with-timer-3435-p.asp, repainting the walls (with Dulux bathroom paint) and ceiling (with Zinsser Perma-White), and changing the downlights to LEDs. (When I came to paint the ceiling, the existing paint flaked off when touched. I concluded the plaster hadn't been sealed properly, stripped it back, sealed and re-painted.)
I've looked for more powerful extractor fans, but there doesn't seem to be anything significantly more powerful that doesn't either make a lot of noise or require a larger duct. I'm reluctant to fit a new inline extractor through the loft when everything appeared OK before I redecorated.
Any thoughts as to what's going on here would be gratefully received. Thanks in advance.
We moved into our new house around 5 years ago, and have just reached the point where (I am told) rooms need redecorating. I've started on the shower room. Before I redecorated there was no problem with condensation (although a bit of mould was starting to grow on the ceiling). After redecorating, there is a real problem - five minutes in the shower and condensation is literally dripping off the ceiling plus running down the walls.
The situation is as follows: shower room of size 3.2m x 1.8m x 2.4m; extractor fan venting through a 4" duct in the wall; underfloor heating; well insulated loft space directly above; the room is comfortably warm.
My redecorating included: replacing a basic Manrose extractor with a more powerful Silent Tornado http://www.extractorfanworld.co.uk/st100t-silent-tornado-hi-power-bathroom-fan-with-timer-3435-p.asp, repainting the walls (with Dulux bathroom paint) and ceiling (with Zinsser Perma-White), and changing the downlights to LEDs. (When I came to paint the ceiling, the existing paint flaked off when touched. I concluded the plaster hadn't been sealed properly, stripped it back, sealed and re-painted.)
I've looked for more powerful extractor fans, but there doesn't seem to be anything significantly more powerful that doesn't either make a lot of noise or require a larger duct. I'm reluctant to fit a new inline extractor through the loft when everything appeared OK before I redecorated.
Any thoughts as to what's going on here would be gratefully received. Thanks in advance.