When it comes to indoor air quality, few hazards are as underestimated as radon gas. If testing has revealed elevated levels of radon in your home, the next step is to lower those levels as soon as possible.
What Does a Radon Mitigation System Do?
A radon mitigation system is designed to lower radon gas concentrations inside a building. The most common systems operate by venting radon from beneath the home’s foundation to the outside air, where it quickly dissipates.
These systems do not eliminate radon from the soil; instead, they prevent it from entering the living space. Properly installed and maintained, a mitigation system can reduce radon levels by up to 99%, creating a healthier indoor environment.
How Radon Mitigation Systems Work
The most widely used mitigation method in Canada is active sub-slab depressurization (SSD) systems. This radon mitigation system works by:
1. Collection Point
A small suction pit is created by drilling a hole through the basement floor slab or the concrete crawl space. This acts as the entry point for collecting radon gas from beneath the home.
2. PVC Piping System
A network of plastic pipes is connected to the collection point. These pipes run from below the slab to the exterior of the house, usually venting above the roofline to avoid the re-entry of gas into windows or vents.
3. Radon Fan
A specialized, quiet radon fan is installed along the piping (typically in the attic, utility room, or exterior wall). This fan creates a vacuum that draws radon from under the house and expels it into the open air.
4. Sealing Entry Points
Any visible cracks in the foundation or gaps around pipes are sealed to help direct radon flow to the collection system and prevent future seepage.
Types of Radon Mitigation Systems
While active sub-slab depressurization is the most common, other methods may be used depending on the home’s structure:
Passive Sub-Slab Depressurization
This radon mitigation system is similar to the active system but relies on natural air movement instead of a fan. It is often installed during new construction and can be upgraded to an active system later if needed. These systems are not generally as effective and many have issues.
Sub-Membrane Depressurization
Used for homes with crawl spaces, this system involves placing a heavy plastic sheet over the crawl space floor. A vent pipe and fan are used to draw radon from beneath the membrane and release it outside. These jobs are labour intensive but effective at lowering radon levels in the home.
Protect Your Home with Radon Mitigation
If radon testing in your home shows elevated levels, do not wait to act. A radon mitigation system is a proven, effective solution that can significantly lower radon levels in your home.
At Synergy Radon, we provide professional radon testing and mitigation services throughout the Okanagan Valley. Our C-NRPP-certified team offers custom solutions tailored to your home, ensuring safe and long-lasting results. Take control of your indoor air quality today and contact us to schedule an in-person consultation with one of B.C.’s original certified radon professionals.