Which is greener: fiber-cement or vinyl siding?

— Patty Boyce, Berea, KY

Answered by Connie McCullah on August 21, 2007

Is there a greener alternative to polyethylene housewrap?

— Oresta Korbutiak, Ottawa, ON, Canada

Answered by Mitch Boucher on August 7, 2007

How do I build a green doghouse?

— Lorraine Conti, Staten Island, NY

Answered by John Messerschmidt on May 10, 2007

Our new loft is being built in St. Louis. Should we insist on green upgrades?

— Stella Tanner, Los Angeles, CA

Answered by Peter Kellner on May 3, 2007

Does DensArmor drywall replace green board? Should I worry about formaldehyde?

— Eric Fixler, Oakland, CA

Answered by Carl Seville on February 22, 2007