What should I ask potential builders to make sure they are green?

— Nina Blackwood Arrington, TN

Answered by Randy Potter on June 2, 2011

Is it cheaper to renovate or to build from scratch?

— Donald McLean Beverly Hills, CA

Answered by Harold Remlinger, AIA, LEED AP, NCARB on May 23, 2011

Is there a green way to kill the ants invading our kitchen?

— Adrienne Parks Huntington Beach, CA

Answered by Richard Heller on May 17, 2011

Does drywall, U.S.-made, outgas? Also, is it termite and mold resistant?

— Eva San Luis Obispo, CA

Answered by Cynthia Phakos on May 12, 2011