30 Dec '11, 2am

Green Building Q&A: Walkin attic moisture problem

My 50+ year old house has a walk-in attic that we use for storage. There is moisture on the roof decking and some mold in the winter. The soffits are vented, there are 2 gable vents and a roof fan. The mold is mostly on the side that faces north and is more toward the roof line than the peak. I have weather stripping on the door and have glued 1" insulating foam board to the door in hopes of reducing heat entering the attic via the door. I have tried to seal off as many source of heat entering the attic that I can find. There is about 6 inches of insulation, not sure of the R value. I have tried running the attic in the winter and still see condensation. Could the gable vents be functioning as intake and thus short circuiting the soffit vents? I cannot abandon using the attic. It is not living space but we go up there daily to get stuff. I am concerned that the moisture wi...

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Green Building Q&A: Wood Floor, Concrete slab, ...

greenbuildingadvisor.com 29 Dec '11, 4pm

Hi all, I had a question about proper installation of a wood floor on a concrete slab. Assuming the slab has been moisture...