Is rigid foam and fiberglass batt between studs a good Idea?
In my upcoming master bath remodel, I am considering stripping two exterior walls of drywall in order to make them 2x6 in thickness to allow for additional insulation. My plan was to install 1" rigid foam board against the backside of the exterior plywood sheathing, with all gaps sealed with foam and then R-19 fiberglass batt insulation.
However, after reading about the flash and batt method in Fine Homebuilding, I am concerned with too much moisture being trapped in the walls.
Posted Jan 30, 2011 12:42 PM ET
Other Questions in Green building techniques
I recently had a metal roof installed on my house and am wondering if it was installed properly. The roof was installed over two layers of shingles. The roof is over 20 years old with damaged and raised shingles. The contractor applied the metal directly