Is it useful to insulate below the floor joists in my home?

— Ruth Spokane, WA

Answered by Edward Wright on February 4, 2015

should I insulate my basement ceiling

— jack Bay Shore, NY

Answered by Edward Wright on January 21, 2015

How do I repair an area of the furnace that is thinning?

— Robert Philadelphia, PA

Answered by Scott Grieves, CPM, CEA on January 21, 2015

I need help designing a new house that is naturally ventilated.

— Paul St. Michael Brooklyn, NY

Answered by Sean Lintow Sr on January 14, 2015