Red flakes of tissue-like material are blowing out of our heating system's ducts. Any idea what this is? What can be done to prevent it?

— Don E Wapakoneta, OH

Answered by Harold Remlinger, AIA, LEED AP, NCARB on December 23, 2010

What can be done to reduce dust emitted from a crawlspace-mounted central furnace?

— Nelson Conley, GA

Answered by Harold Remlinger, AIA, LEED AP, NCARB on December 23, 2010

The town building department doesn't want us to use concrete mixed with flyash. Do you have any information on contamination in flyash?

— Barbara Donahue Sandy Hook, CT

Answered by Anthony Addesso on December 9, 2010

How do I install an exhaust fan in the garage to activate with the garage door?

— Josh Hallgren Pullman, MI

Answered by Raymond Pruban on November 25, 2010

I am confused about electromagnetic fields (EMFs). How would you suggest I reduce health risks inside the home?

— Ilana Cohen Brooklyn, NY

Answered by Sarah Barnard on November 19, 2010

We get a lot of dust in our house. Where could the dust be coming from?

— Warren San Francisco, CA

Answered by Randy Potter on November 4, 2010

I am having trouble painting Padauk wood. Can you help me find the right oil primer? How long will it take to outgas?

— camilla marvel Traverse City, MI

Answered by Rick Goyette on October 12, 2010

Can a new AC unit be incorporated into the ductwork of a 1930s gravity air furnace that has asbestos ductwork?

— Lisa Nashville, TN

Answered by Bill Bradbury on October 10, 2010

I am having my breakfast room remodeled. I know that premixed joint compound is toxic, but is dry mix mixed onsite OK?

— Carole Columbus, OH

Answered by Mary Cordaro on October 7, 2010

Our neighbor across the street keeps his fireplace burning most of the day. Smoke blows up into our house. How to counter this pollution?

— ann welsh Carmel, CA

Answered by Maggie Michel LEED AP on October 1, 2010

 

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