Any advice on installing foam insulation in an RV?

— sandy scott

Answered by Danny Kelly on February 26, 2010

Should I leave an air space between my attic insulation and the wood roofing?

— D.L. Bennett, Arlington, VA

Answered by Mike Binder on March 5, 2009

Can I insulate my roof without destroying the vintage pressed-tin ceiling?

— Betsy Humes, Brooklyn, NY

Answered by Susan Davis on April 1, 2008