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Recently installed foam insulation is separating from joists. Is it an installation problem, or typical of the product?

— Tommy Sullivan Leland, NC

Answered by Raymond Pruban on June 20, 2011

My house is not insulated. What are the best ways to add wall insulation? Or is it better to just add more attic insulation?

— Bill Rancho Palos Verdes, CA

Answered by Christian Kienapfel | AIA Architect | RA | LEED AP | Dipl.-Ing. Architekt (Germany) on May 8, 2011

Which is more energy efficient -- a metal roof or foam insulation?

— Rainey S. Wilmington, NC

Answered by Jason Kliwinski on March 7, 2011

Which is best for an attic: closed or open cell spray foam?

— Karen Zebulon, NC

Answered by Matthew McCullough on February 22, 2011

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

 
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