Crawlspace Sprayfoam Recommendations

I live in Baltimore area, MD. I currently have an unconditioned crawlspace, with what is likely R13 FG falling out of the joists. HVAC is in the crawl. The ground is gravel and it can get moist; I have a sump pump down there. Short of the hurricane, it doesn’t flood, but there is moisture.

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Spray foam insulation questions

Dana, more specific to the oc vs cc for a retrofit. The house I purchased recently is a 1929 structure with lath and plaster on 2×4. The first floor has a stone facade and the 2nd floor has plaster and exposed wood (Tudor revival style). After a freezing winter I checked the walls – there [...]

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