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insulating basement walls

Posted by grasshopper on September 30th, 2003 09:36 AM
In reply to insulating basement walls by Eric on September 29th, 2003 06:05 PM [Go to top of thread]

Experts suggest the vapor barrier be on the outside of the concrete. Any moisture that diffuses through the concrete below allowed to evaporate the space to avoid wetting inside the concrete. I used 2" of foam glued to the wall prior to studs/drywall. Avoid plastic/vinyl inside the insulation which may trap moisture. Keep the basement space <50%RH during the summer which prevents mold/dustmites from growing. Carpeting direct on the concrete is ok because of low humidity. Get good dehumidifier if you are located in a green grass climate. You need 1 pint of capacity per 20 sq.ft. of floor space. Check epa's energy star web site for capacity and efficiency.$File/dehumid_prod.pdf?OpenElement

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