Another post about attic condensation

[dr_bogenbroom]

I upgraded our insulation in our roof from 100mm to about 400mm - I have these plastic things at the eaves that I assumed were to allow airflow and put the insulation up to these.

After the first cold spell I noticed it was soaking up there - condensation everywhere so I pulled back the insulation from the eaves, left the loft hatch and the bedroom window open for a few days, and wiped down/vacuumed as much moisture as possible until it was clear.

Checked again today and it’s coming back. I wondered if the heat from the hot water tank below was maybe causing it but that’s also got about 400mm of insulation above it.

I then thought it could be that I’ve put too much insulation up there and that I’ll have to remove some.

And then I could add vents to the top of the roof.

Any ideas?

 

[JohnD]

Any ideas?

CONDENSATION IN LOFT (ANSWERS)

This seems to be the time of year for condensation in lofts, so instead of replying to lots of queries I though I would write this "one-size-fits-all" post. Please also see http://www.diynot.com/wiki/Building%3ACondensation-in-Houses Condensation in lofts occurs when the amount of water...

www.diynot.com

 

[dr_bogenbroom]

Wow 2008 - you’ve been on here a while.

I see too much insulation isn’t on the list so at least I won’t have to do the horrible job of removing it.