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Gravel on plastic

Posted by Bruce M on October 28th, 1997 10:46 PM
In reply to Crawl Space Improvement by Chris Hixson on October 27th, 1997 06:58 PM [Go to top of thread]

Hi Chris:
Yes absolutely you will "feel" the benefit of 6" of R-19 fiberglas batt insulation between floor joists....make sure to use the insulation without a vapor barrier and very carefully pack the insulation by hand around the pipes and wires the go through the subfloor decking.

I always put down 3/4 minus gravel over 8 mil plastic sheeting...usually 2 or 3". It will hold the plastic uniformly down in contact with the ground....the most effective method of blocking evaporating moisture. Also, if you are in a warm climate, spraying down a borate solution (boric acid) can be effective in controlling insects.

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