Crawl Space Radon Mitigation in Upper Arlington, OH

Crawl Space Radon Mitigation in Upper Arlington involves sub-membrane depressurization: a 20-mil polyethylene liner sealed to the crawl walls with an inline fan drawing soil gas from beneath, working on the crawl-space envelope where ground-source soil gas enters through bare earth. The service is the right scope for any crawl-space-foundation home testing above 4.0 pCi/L, in place of sub-slab depressurization which does not apply to crawl spaces.

Upper Arlington's pre-war and mid-century housing sits mostly on poured or block basement walls, and standard sub-slab depressurization performs well across most of the stock. Mature landscaping and limited interior chase access on the older streets often push the radon stack to an exterior routing rather than up through a closet to the attic. Franklin County's EPA Zone 1 designation and the Devonian bedrock underneath keep elevated readings common across the suburb's full range of building eras. Upper Arlington's eastern border runs along the Olentangy River, separating it from Clintonville and the Ohio State University campus across the water. Upper Arlington sits on geology that drives elevated regional radon exposure across the Columbus metro, including Franklin County.

Franklin County crawl-space work is uncommon inside Columbus and its poured-basement suburbs like Dublin and Hilliard, where full basements or slabs dominate, so this scope concentrates on the small share of older outlying parcels near the county line where crawl-space construction survives from before the county's subdivision-era building boom.

ANSI/AARST CCAH-2020-0523 requires membrane sealing and a manometer verifying continuous negative pressure across the membrane. The Ohio Department of Health Radon Licensing Program oversees radon program compliance for Upper Arlington, and Ohio licensure under ORC 3723.02 applies to any contractor performing mitigation work in the state.