insulation for 9 inch cavity blocks

teflon · 07-11-2007 01:24PM #1

I need help guys....
I have a bathroom extension to the rear of my house in Dublin approx 10 ft X 10 ft. It is built with 9 inch cavity blocks and I was wondering of that could be insulated in ANY way? Its very cold even with the heating on and there seems to be a mould problem developing now because the hot air is hitting the cold walls and causing moisture. I installed one of the extraction fans and they dont seem to take much away!! I have left windows open but after I shower in the morning and head off to work I have to close the window. The whole bathroom smells damp now. I thought about dry lining but the bathroom is so small that I dont want it to become any smaller (unless thats my ONLY option)

Any recommendations PLEASE????? Any help GREATLY appreciated!!

10-10-20 · 07-11-2007 02:39PM

Is the fan setup to run-on after the light goes out? In a 10ft by 10ft you'd probably need it to remain on for at least 30 mins after the shower stops, maybe more.

teflon · 07-11-2007 02:43PM

No, its not but we leave the lights on most of the time to compensate for that. There is something on the back of the fan to prevent air blowing back into the bathroom. I was thinking of taking this off but thought that the bathroom would just be colder then?

delly · 07-11-2007 09:45PM

teflon, please don't cross post the same thread in different forums.

insulation for 9 inch cavity blocks

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