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Green Energy Efficiency Questions

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

Can a tankless water heater be combined with solar roof panels to heat a 5,000 gallon swimming pool in Florida?

— Daniel Galvin

Answered by James (Butch) Coger on January 15, 2010

what kind of sustainable exterior sheathing board do you recommend with a good R value?

— anthony mattina

Answered by Gary Shlifer LEED AP+ H, LEED AP+ BD&C 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

We’re adding a sunroom to our home. Can you suggest strategies for natural heating and cooling?

— Dennis Kitchen, Smyrna, TN

Answered by Mark Schrieber on August 25, 2009

We need to replace the windows on our Florida home. What's the greenest choice?

— Lisa Fiocca, Stow, OH

Answered by Daniel Glickman on May 21, 2009

Should attic insulation extend into the eave soffits?

— Ralph Fumante Jr., Oyster Bay Cove, NY

Answered by Jesse Terzi on April 23, 2009

How far below grade should I insulate my house's exterior? What material should I use?

— Mimi Barzen, Grand Rapids, MN

Answered by Mike Binder on March 5, 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

What is the safest and most effective insulation for our attic crawl space?

— Alison Rockwell, Boulder, CO

Answered by Ian MacLeod on February 5, 2009

Where can I find eco-friendly exterior doors that will match my historic home and keep the cold out?

— Rene Ebersole, New York, NY

Answered by Christine and Robert Boles on January 23, 2009

Is electric baseboard heat powered by solar panels an efficient choice for our new addition?

— Greg Meyer, Santa Cruz, CA

Answered by Patrick Sheaffer on January 8, 2009

Should we have our tankless water heater installed by a specialist?

— Jess Wren, Los Angeles, CA

Answered by Patrick Sheaffer on January 8, 2009

What should an electrician know about working with SIPs?

— Teresa Taylor, Hamilton, OH

Answered by Fernando Feldman on November 6, 2008

 

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