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R-501 Foam Insulation

Posted by David Richmond on August 24th, 2000 08:55 PM

My house is 60 years old and i understand they didn't use much in insulation back then. I came across a company that tills me they will bore 1 1/2 dia. holes on 16 inch centers under my siding and fill the cavity with this R-501 product. My concern is how good is it? I live in Maryland and winters are cold and summers are hot.I use a window AC and i have hot water boiler and raditors.Do you feel this will help in reducing my cost in oil and electric? Please respond or comment on this, I would like to do something before winter. Thanks...

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