Closed or open cell foam in our to-be-finished attic in Maine? And what kind of venting is necessary?

— BHNelson Westbrook, ME

Answered by Matthew McCullough on February 22, 2011

I need to insulate my attic in South Carolina. The house was built in 1984 and remodeled in 2004.

— John Mosher Hilton Head Island, SC

Answered by Matthew McCullough on February 22, 2011

I have a 2,000 sq. ft. mobile home that I'd like to transform to a self-sustaining structure with solar power. Help!

— Ginny Lanexa, VA

Answered by Sergio Grado on February 22, 2011

I have a 2-story home with very little insulation in the rafters between the 2 floors. Would you recommend adding more?

— jerry h. Hopkins, SC

Answered by Harold Remlinger, AIA, LEED AP, NCARB on January 25, 2011

Is there a standout spray foam insulation brand? Or one to avoid?

— Gil Morelle Alpharetta, GA

Answered by David Edwards PhD on January 13, 2011

I'm converting a school bus into a motor home. What's the best way to insulate?

— josh jackling Perris, CA

Answered by Cynthia Phakos on January 6, 2011

How do you insulate a home with cathedral ceilings?

— Howard Troy, MI

Answered by Kevin Holdridge on December 20, 2010

I have a 1946 Cape Cod in Indiana with an unvented attic. I want to insulate the house with foam. Should I use open or closed cell foam?

— David Mills Indianapolis, IN

Answered by Kevin Holdridge on December 20, 2010

I am putting spray foam insulation in my attic. What is the better option: open or closed cell?

— Gil Morelle Alpharetta, GA

Answered by Polly Osborne, AIA, LEED AP on December 16, 2010

I live in St. Pete, FL, and want to know more about closed-cell foam insulation for my crawlspace. Is it safe to use?

— David Deering Saint Petersburg, FL

Answered by Polly Osborne, AIA, LEED AP on December 16, 2010

 

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