I want to add wall insulation to my 1920 home. I have two locally available options -- Icynene and Tri-polymer foam. Can you advise me?

— Amy Mudd Louisville, KY

Answered by Alex Georgiou on March 4, 2010

Any advice on installing foam insulation in an RV?

— sandy scott

Answered by Danny Kelly on February 26, 2010

I'm converting my attic into a non-vented conditioned space. Should I use open cell or closed cell foam to insulate?

— Gary Lichtenstein

Answered by Steve Saunders on January 15, 2010

Do you recommend closed cell foam or open cell foam for the undersurface of the roof deck?

— Brad Priester

Answered by David Cook on January 14, 2010

What type of insulation should I use for a new home In Tennessee? Should I use 2x6s for the walls?

— Steve Truelove, Chattanooga, TN

Answered by Richard Reilly on August 6, 2009

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 apply spray foam insulation directly to the underside of a metal roof?

— Casey, Virginia

Answered by Mick Dalrymple on May 8, 2008

Weighing energy use reduction and life cycle assessment, which insulation types are best?

— Dwight, Dexter, Mich

Answered by Mick Dalrymple on April 24, 2008

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

— Betsy Humes, Brooklyn, NY

Answered by Susan Davis on April 1, 2008

What type of roof works best with spray-foam insulation?

— Eleazar, Brownsville, Texas

Answered by Mick Dalrymple on February 21, 2008

 

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