Where is it better to install insulation in an old house: inside or outside?

— Felix Gonzalez San Antonio, TX

Answered by Christian Kienapfel | AIA Architect | RA | LEED AP | Dipl.-Ing. Architekt (Germany) on August 3, 2010

I'm trying to find pre-fab housing manufacturers in the Denver area. Where should I look?

— Larry Cohen Denver, CO

Answered by Paula Zimin on August 3, 2010

Is there a good way to reduce energy loss and associated costs due to frequent use of doors?

— chad senf Huntington Beach, CA

Answered by Paula Zimin on August 3, 2010

What type of indigenous plant or tree can I use to create a sound barrier?

— Tim Douglas San Diego, CA

Answered by Richard Heller on August 3, 2010

We are doing a complete home renovation. I've been discouraged from seeking LEED certification by many professionals. Please advise.

— Jill Joseph Garrett Park, MD

Answered by Andrea Foss on August 2, 2010

Do BFRs (brominated flame retardants) offgas or persist in upholstery? Would they be in the stuffing of a sofa, or in the fabric cover?

— Val Stein Grand Junction, CO

Answered by Mary Cordaro on August 2, 2010

Do whole-house surge protectors really work? Which ones will condition the power and save energy? Are they worth it?

— Breana Rondeau Jacksonville, NC

Answered by Rick Goyette on August 2, 2010

What are the electrical costs for running a passive hot water recirculating system with the timer set to off?

— Kathleen Arquette Chandler, AZ

Answered by Philip Proefrock on August 2, 2010

We are going to replace our bedroom carpeting but are concerned about humidity. Live in FL. Best material for us?

— Betsy Camp North Fort Myers, FL

Answered by Glenn Summers on August 2, 2010

I'm building a home and want to have a passive solar greenhouse added to the south side. What configuration tips can you give?

— RP Williamson Denver, CO

Answered by Florian Speier on July 30, 2010

When insulating interior basement walls, do you need to insulate below the frost line? Or does the soil act as a natural insulator?

— paul Sellersburg, IN

Answered by Florian Speier on July 30, 2010

What is a reasonably priced hard-surface flooring with low VOCs?

— mairiyn stefani Royal Oak, MI

Answered by Randy Potter on July 30, 2010

The air flow on the central air is barely cool even at low temperature. What might be wrong?

— Tom Swanton, OH

Answered by Dennis Cheslik on July 30, 2010

My AC service contractor wants to sell me a new unit with environmentally friendly Freon. What does that mean? Should I buy it?

— Ellen Stover Tampa, FL

Answered by Steve Saunders on July 28, 2010

What do you know about a water softener product called Scale Blaster?

— Yesim Erke-Magent Allentown, PA

Answered by Matthew O'Toole on July 28, 2010

 

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