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Should I use open or closed-cell foam insulation only on attic and gables, not walls? I do not want water problems.

— Gail Johnson Crowley, LA

Answered by Hamid Kashani - AIA, LEED Green Associate on May 28, 2010

Should we use open cell or closed cell SPF insulation on the underside of our attic roof in southeast Louisiana?

— William Jordan Slidell, LA

Answered by Rick Goyette on May 20, 2010

I'm remodeling my house and I feel like I am missing out on incentives. What are the hot new incentives out there?

— Frank Lee San Diego, CA

Answered by Rick Williams on April 5, 2010

What's the best way to seal a 30-year-old AC duct system in an attic?

— Glenn Summers Melbourne, FL

Answered by Andrea Foss on March 23, 2010

My soffits are covered with insulation. Do I remove all insulation over the soffits or push it back and put sleeves in?

— wendy ashby Davenport, IA

Answered by Erik Henry on March 8, 2010

Is it okay to have the insulation baffles 24" away from the blown insulation?

— Geoffrey Castro

Answered by Scott Liljedahl LEED GA on February 26, 2010

Adding attic insulation

— Matthew Tannehill

Answered by Andrea Foss on January 21, 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

What is the most energy efficient way to get rid of ice dams on a slate roof? The roofer suggests heating cables. Isn't there a better way?

— Joel Shoner

Answered by Rob Moody on January 14, 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

 
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