I'm converting a school bus into a motor home. What's the best way to insulate?

— josh jackling Perris, CA

Answered by Cynthia Phakos on January 6, 2011

What is the R-value for walls and ceiling in Laredo, TX?

— Felix Laredo, TX

Answered by Cynthia Phakos on December 9, 2010

Can you offer feedback on an idea for insulating my home's walls?

— Ron Beck Appleton, WI

Answered by Danny Kelly on December 2, 2010

What's the best product to use to seal ductwork?

— Daniel Shugrue Somerville, MA

Answered by Elliot Seibert on November 25, 2010