Mitigation

***PLEASE NOTE***
With the introduction of Health Canada’s new mitigation guidelines on June 6, 2011, Radon Atlantic will no longer be installing exterior radon mitigation systems for residential properties.
All residential mitigation must now be completely enclosed within the building envelope and will result in significantly lower cost to homeowners.
This page will be updated with appropriate information ASAP.

If you have had your property tested and the report notes a recommendation to mitigate within a specified time, there are very effective options available.

Active Soil Depressurization (ASD)

The most popular method of mitigation, ASD systems can be applied to slab-on-grade, full basement or crawl space construction. A properly designed and installed ASD system will not only mitigate radon levels, it will generally lower moisture levels as well. This helps with any existing mold/mildew issues and can even eliminate the need for the daily “emptying of the dehumidifier” so many of us go through in our maritime climate. Our objective for mitigation is to lower radon levels to below 100 bq/m3. We use only Schedule 40 PVC in our systems for strength and weather resistance. ASD systems include diagnostics prior to install and pre/post-install radon testing with a continuous radon monitor. For more info on ASD systems, please click on one of the images to the left.

Heat Recovery Ventilation Systems (HRV)

Another method of reducing radon levels is by dilution. Exhausting stale interior air while bringing in fresh air dilutes radon. As the half-life of radon is 3.8 days, there is a good chance it can be exhausted before it decays down to the more dangerous poloniums. While this method is generally not as effective as Active Soil Depressurization, it can be suitable for those wishing to lower levels slightly.

As more families try to maximize their living spaces, more time is spent in our basements. With the drive for energy efficiency sealing up buildings and homes, your can create an environment with little or no air movement. Installation of an HRV system makes sense in any home as the benefit of constant fresh air creates a healthier environment.

HRV systems should be balanced and maintained on a regular schedule. An unbalanced system can result in interior depressurization, drawing radon and other soil gasses into the home.

We offer specification, design, installation and maintenance of HRV systems to help mitigate indoor pollutants.