Quote:
Originally Posted by big builder
Hello everyone,
I have this bad problem with condensation in my personal house.
I made the mistake of spray foaming almost the entire roof. It's a complicated design and I have struggled with condesation in the attic and some wall sections.
I should have just gone with complete plastic vapour barrier.
I have just installed three powered gable fans to try and help suck out the air .
I can see brown water running down my soffits and fascia now.
My question is this: I am thinkg of running my HRV non-stop to try and
get rid of the moist air inside..... will think help and realistically how much will it increase my heating costs?
The house is over 5000 sq ft so it's not a few cents.
Does anyone have any other ideas for aleviating this problem?
Thanks for any advice.
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Where are the fans pulling air from? Is the attic vented? Assuming that you're now in heating season, are the fans controlled with simple on/off switches? What is your location?
Delta