Is Airkrete a good insulator for an addition to a house that doesn't have an HVAC system? Would Fiberglass or SPF foam be better?

— Ryan Covesville, VA

Answered by Elizabeth DiSalvo on September 19, 2011

How do I remove condensation from our interior low e storm windows?

— Jerry H. Hopkins, SC

Answered by David Willson on September 12, 2011

We pay 4X more in winter than in summer to run the heat pumps in our all electric house. How can we set them to minimize heating costs?

— Eric Fayetteville, AR

Answered by Michael Holcomb on September 7, 2011

Can central air be installed in a 1950s home that has a floor furnace?

— Norma Wichita, KS

Answered by Michael Holcomb on September 6, 2011

What is the most energy efficient way to mechanically ventilate a home to bring in cool night air, after a hot day?

— Patricia Menlo Park, CA

Answered by Randy Potter on September 1, 2011

What type of insulation do you recommend for a 1959 tri-level home in Illinois? Our house has cathedral ceilings without attics.

— Yvette Glenview, IL

Answered by Michael Holcomb on August 30, 2011

How do I ventilate my well-sealed 18sq meter one room apartment? I live in one of the most polluted part of the city.

— Aderna Nunez, Manila Philippines Glendale, MA

Answered by Polly Osborne, AIA, LEED AP on August 30, 2011

Is blown-in cellulose insulation going to cause condensation or moisture problems?

— Janelle Vallejo, CA

Answered by Doug Cameron, LEED GA on August 18, 2011

Is it worthwhile putting spray foam between joists in my attic ceiling?

— Jim Doylestown, OH

Answered by David Willson on August 3, 2011

Do I need to insulate the floor of a workshop?

— Elizabeth Chester, NY

Answered by Michael Holcomb on July 18, 2011

 

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