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Is there a redwood siding sealer that won't darken the wood? It has been stripped and is under the porch roof with no rain or sun exposure.

— katia Concord, CA

Answered by Polly Osborne, FAIA, LEED AP on December 3, 2010

What is the best backing material for shower walls?

— gary Chesapeake, VA

Answered by Polly Osborne, FAIA, LEED AP on November 3, 2010

We need an insulated white roof on our home. Which is the best membrane, TPO or PVC? How thick should the polyiso be?

— Kimberly Trombley Saint Petersburg, FL

Answered by Polly Osborne, FAIA, LEED AP on October 16, 2010

How can I keep the dirt, pollen, and sand out of my screened sunroom?

— Debi Reiss Panama City, FL

Answered by Polly Osborne, FAIA, LEED AP on October 16, 2010

We are designing a home in the Caribbean and need help with air-conditioning options. Can you provide us with some advice?

— Tish B. Miami, FL

Answered by Polly Osborne, FAIA, LEED AP on October 15, 2010

I would like to hook up a tankless water heater to my baseboard heater to heat the house and provide hot water. Can this be done?

— chris Croydon, PA

Answered by Polly Osborne, FAIA, LEED AP on October 15, 2010

Can I use old hardwood flooring for countertops?

— Kelly Pierce Albany, NY

Answered by Polly Osborne, FAIA, LEED AP on October 14, 2010

What type of waterproofing system is used under these green roofs, and what is the expected lifespan of the actual roofing material?

— Fred Oompalumpa Saint Peters, MO

Answered by Polly Osborne, FAIA, LEED AP on August 26, 2010

Is it possible to find granite countertops that do not emit gamma radiation?

— kathy Powell West Palm Beach, FL

Answered by Polly Osborne, FAIA, LEED AP on July 23, 2010

I am looking for real-world performance information on green countertop options. How well do these actually function in a kitchen?

— Suparna Kadam East Brunswick, NJ

Answered by Polly Osborne, FAIA, LEED AP on June 28, 2010

 
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