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radon mitigation for stone foundations 2

https://mycertifiedradonspecialist.clearhavendigest.com/posts/why-you-need-a-certified-radon-specialist-for-home-testing-in-york-and-adams-county

Dealing with radon in a stone foundation can be tricky because cracks and gaps are more common than in poured concrete. Sealing those openings with a quality polyurethane caulk or hydraulic cement is a good first step, but for persistent high levels, a sub-slab depressurization system is often needed. This involves creating a suction point below the foundation and venting the gas safely above the roof line. Since stone foundations often have dirt or gravel crawlspaces, a vapor barrier and passi…