" Open cell spray foam was installed on the underside of the floor from the crawlspace of a double wide mobile home almost two years ago. Air ductwork was also insulated this way as it hangs under the floor. Rotten belly paper and bat insulation…"
"Dec 2010, I had the underside of a 2000 sq ft older manufactured home, sprayed with open cell foam. Ripping out the sagging insulation and belly paper, spraying at least 3 1/2" of foam directly on the underside of the floor and totally covering…"
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