Who would I contact to get my attic properly ventilated?

— James Belanger Oakland, ME

Answered by Elizabeth DiSalvo on April 3, 2012

What can I use to replace the vapor barrier on my 30 year old home?

— Kym Herferth Houston, TX

Answered by Andrea Palmer on March 27, 2012

Are there Energy Star clothes dryers?

— Michael Anthony Olathe, KS

Answered by William Fry on March 27, 2012

I am looking at either a PV system or solar hot water. Which has the biggest ROI?

— Terry Luttrell Harsens Island, MI

Answered by Paul Rosen on March 21, 2012