Do I need a ridge vent if I have an attic fan?

— Chrissy Moorestown, NJ

Answered by Polly Osborne, FAIA, LEED AP on September 25, 2013

Should we replace the cast iron boiler in our 1968 home?

— Kathy L Mount Holly, NJ

Answered by Sean Lintow Sr on September 25, 2013

Can a 100 year old house cause allergy-like symptions?

— doug golenski New Bedford, MA

Answered by Lucas Johnson on September 16, 2013

How do I choose solar panels?

— Mimi santoni Cedarhurst, NY

Answered by Harold Remlinger, AIA, LEED AP, NCARB on September 16, 2013

How do outside air vents work?

— Marlene Sargeant East Lansing, MI

Answered by Joshua Lloyd on September 12, 2013