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Your house pulls soil gas in like a straw. Here's exactly how radon gets inside – and how we stop it.
Radon is a soil gas, so it enters from the ground up. Understanding the pathways is the key to understanding how a mitigation system fixes the problem.
Warm air rises and escapes through the upper part of your home, creating a slight vacuum at the lowest level. That vacuum actively pulls soil gas in – radon included – through any opening in contact with the ground. It's strongest in winter, which is why levels peak in the cold months.
A radon mitigation system flips the pressure: instead of your home pulling radon up, a fan and vent pipe pull it out from beneath the slab and release it above the roof – before it ever reaches your living space. See how radon mitigation works.
Sealing helps, but on its own it rarely solves a high radon level – there are too many pathways. Sealing is used together with an active sub-slab system, which is what actually reverses the pressure.
The stack effect is strongest when it's cold, because the temperature difference between inside and outside pulls harder on soil gas. That's why winter is peak testing season.
Tell us about your home and we'll get right back to you. Serving Sioux Falls and the surrounding metro.