Wow! Thanks for all the replies!
Sorry about the 12" bit. I meant a 12" wall with 4" cavity.
It has air bricks, but only on outside wall, not straight through. I did block them up but wasn't sure if I'd make it worse, so unblocked them. There's definitely no cavity insulation.
We don't dry clothes in there, but I did wonder about the steam coming off the washer and dishwasher being part of the problem.
So, taking all your comments into account, I've dropped on a large, second hand dehumidifier for £20! It says it will do 4 rooms. And I've got a firm coming next week to see about cavity insulation, and I'll ask about filling behind the ceiling as well.
I'll let you know what happens.
Many thanks to all once again.
Paul
Sorry about the 12" bit. I meant a 12" wall with 4" cavity.
It has air bricks, but only on outside wall, not straight through. I did block them up but wasn't sure if I'd make it worse, so unblocked them. There's definitely no cavity insulation.
We don't dry clothes in there, but I did wonder about the steam coming off the washer and dishwasher being part of the problem.
So, taking all your comments into account, I've dropped on a large, second hand dehumidifier for £20! It says it will do 4 rooms. And I've got a firm coming next week to see about cavity insulation, and I'll ask about filling behind the ceiling as well.
I'll let you know what happens.
Many thanks to all once again.
Paul
