07 Aug '11, 8pm

Green Building Q&A: How do I correct condensation on my cathedral ceiling?

I have lived in my house for twenty years and have never had a problem with condensation. About a year and a half ago I hired someone to make my house more energy efficient. He sealed leaks in the attic, and added blown cellulose insulation. He replaced the can lights with can lights designed to have insullation placed over them. At the time he did this work, airconditioning ducts ran through the attic. Shortly after that, I installed a geothermal unit and had the ductwork redone so that it is now in the crawl space. ( While I had central air before the geothermal unit, I didn't have central heat until after that was installed). Now I am getting visible condensation and mold on my cathedral ceiling in my living room. It has appeared for the first time this summer as I run the air conditioner. The living room extends out from the house. Part of the cathedral ceiling is a tr...

Full article: http://www.greenbuildingadvisor.com/community/forum/gener...

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