Answer: Cracks in the foundation and openings in the foundation walls. |
| Spire Home Inspection |
Answer: Radon typically enters a building from soil gases through the foundation. However, in some cases, radon is present in water from wells, which can disperse into the air. Further, radon can emanate from certain building materials, so even though the primary entry mechanism is from soil gas migration through the foundation and is typically concentrated at the lowest level, emanation can be present from building materials even in high rise buildings. |
| Full Spectrum Imaging & Inspections, LLC |
Answer: When radioactive rocks and soil break down, they release radon gas. That gas can enter buildings through:
- Construction joints.
- Cracks in walls or floors.
- Gaps in foundations.
- Openings near pipes or wires.
Less commonly and in smaller amounts, radon can be released from:
- Building materials made from natural substances, such as concrete, wallboard and granite countertops.
- Water, especially water that comes from underground wells. |
| Monarch Radon Testing |
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| ProMatcher |
Answer: Radon enters the home through the following areas:
Crawlspaces
Cracks in the foundation & walls
Floor drains
Pipes
Sump pumps
Radon gas can enter both old and new homes, regardless if there are visible cracks or not.
Radon can also enter the home through the use of well water. Areas that have high levels of uranium in the underlying granite or shale are prone to allowing radon enter the groundwater.
[Refer to: https://www.cdc.gov/features/protect-home-radon/index.html ] |
| Dean Schurger, Certified Industrial Hygienist (CIH© 1990-2018) |
Answer: cracks in the floor, sump pump pits, thin concrete slabs |
| Minnesota Mold Inspection, LLC |
Answer: Open cracks in the Slab such as the sump pit |
| Property Inspection Pros |
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| ProMatcher |
Answer: Foundations cracks, Open drainage (sump pump pit), dirt crawl spaces without vapor barrier |
| InFocus Inspection |
Answer: The soils below the structure. If the structure has a concrete slab, the gas enters through any voids. If the structure if over a crawlspace, the gas enters through any voids in the vapor barrier. |
| Worsley Inspections LLC |
Answer: cracks in basement flooring. |
| Alabama indoor air quality testing, LLC. |
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| ProMatcher |
Answer: Cracks in the foundation. Be it a slab, dirt floor and a full basement. |
| Total Check-Up Inspections |
Answer: The gas enters through any crack, hole sump area, crawl space, etc. |
| Four County Home Inspection Service, LLC |
Answer: Radon enters a home through areas of low pressure. It can enter your home through cracks in a foundation , sump pits and through your water supply. |
| Norton Inspection Services |
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| ProMatcher |
Answer: The most common ways radon gas enters a home is through openings in a home, cracks in the floor and walls. |
| Corley Home Inspections, LLC |
Answer: Thru cracks in the foundation , sump pumps ,sewer lines. |
| ATM Home Inspection |