Should I replace or paint my steel roofing?

— Noel F Davis North Creek, NY

Answered by Polly Bart on October 21, 2010

Are metal roofs more energy efficient for southern climates than shingles?

— Eliza Blues West Palm Beach, FL

Answered by Anthony Addesso on October 20, 2010

What is the "rule" for irrigating a green roof garden?

— baruch weiss Farmersville, OH

Answered by Richard Heller on July 5, 2010