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Radon Testing · Sheldahl, IA

Radon Testing in Sheldahl

Radon Testing in Sheldahl, IA by Closer Look Inspectors. A photo-mapped digital report within 24 hours.

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Sheldahl · Story County

Radon Testing in Sheldahl

Radon Testing in Sheldahl, Story County, by Closer Look Inspectors. Sheldahl is a Norwegian Lutheran settlement town of older homes spanning three counties.

Radon testing places an EPA-protocol continuous monitor on a home's lowest livable level to measure radon gas — and it matters across Iowa, where Iowa HHS reports 71.6 percent of homes above the action level — the largest percentage of any state.

Sheldahl is served by our Des Moines team →  ·  (563) 517-7815

Modern white farmhouse-style home with black windows and dark garage doors — Radon Testing in Sheldahl, IASheldahl
Local housing

Homes in Sheldahl.

Sheldahl housing runs to older homes from the 1855 Norwegian Lutheran settlement and the 1882 incorporation, across the town core near the 1883 First Norwegian Evangelical Lutheran Church, spread across the Boone, Polk and Story county lines, on the Fourmile Creek watershed on the eastern edge of the young Des Moines Lobe till, flatter and more poorly drained than the southern drift plain — and that mix shapes what a radon testing here needs to find.

Local conditions in Sheldahl

No Iowa law requires a home inspection before a sale — the one mandatory time-of-transfer inspection covers private septic systems (Iowa Code 455B.172) — which makes an independent inspection the only thorough, buyer-side read on a Sheldahl home. Sheldahl sits in Story County, and every Iowa county is EPA Radon Zone 1. Iowa HHS reports Iowa has the largest percentage of homes above the 4.0 pCi/L action level of any state — 71.6 percent in the Iowa Radon Survey — and the Iowa seller disclosure form asks for any known radon test results. Finished basements concentrate it, and only a 48-hour test gives you this home's number. Iowa leaves frost depth to the local building code rather than one statewide number, and the annual freeze-thaw cycle drives the settlement cracks and ice-dam wear that Sheldahl-area homes face.

Home inspection in Sheldahl →  ·  More about radon testing →

Questions

Common questions.

Is radon really a concern in Iowa?
Yes. The Iowa Department of Natural Resources reports that more than two in five Iowa homes have radon levels that pose a significant health risk, and finished basements are where it concentrates.
How long does the test run?
A 48-hour minimum under closed-house conditions; the result is delivered with your inspection report.
What does Des Moines Lobe ground mean for a Sheldahl basement?
Slow drainage, and it shows up in the basement. The Des Moines Lobe is Iowa's youngest glacial landscape — the ice stopped here only twelve to fourteen thousand years ago — so streams have not had time to cut good drainage into it, and the till is flat and holds water rather than shedding it. Around Sheldahl, platted in 1855 and incorporated in 1882, that puts grading, downspout discharge, sump pump operation and basement moisture in nearly every report, along with the older-home read on wiring, plumbing, chimneys and foundations.
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