How do I insulate a crawl space on 44" beams?


Old 10-02-08, 05:10 AM
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Join Date: Oct 2008
Location: Pacific Northwest
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Question How do I insulate a crawl space on 44" beams?

I went under my tenants crawl space in hopes I could insulate it for this winter. I found out my house is not on your typical 24" floor joists. It is on 4x7 inch beams with a little more than 44" of space between each beam. I think twine will sag to much to keep up the insulation. What is the best way? Any help is appreciated.
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Old 10-03-08, 04:57 PM
Join Date: Sep 2008
Location: new england
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how about rigid closed cell foam insulation sold in 4x8 sheets. you can find it at several home improvement stores
Old 10-04-08, 04:26 AM
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If you have that much spacing between beams, what is holding your flooring up? Flooring is not attached directly to the beams, and a span of nearly 4' would require a 3" thick floor to keep from flexing.

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