The threat of radon is critical to address for homeowners. Excessive radon levels can increase the risk of lung cancer by more than 50%. While the EPA recommends taking action in homes that exceed radon levels of 4.0 pCi/L, many homes across the country still continue to suffer from excessively high levels.
In order to reduce destructive levels of radon, specialized services must be inquired upon. To take action and begin reduction, radon mitigation systems are installed in a home (typically either in the attic, basement, or exterior of a home). To accomplish this, there are several key types of mitigation systems, each with their own specific advantages and disadvantages. Learn more below!
Sub-membrane mitigation systems are best installed in homes that have crawlspaces that are occupied by loose flooring (preferably dirt). To remove radon, the service personnel will cover the flooring in a plastic sheet and create a pressurized channel with a pipe and a fan that pushes the radon gas out of the home. Because it is common for radon gas to build up in low areas of a home, this can be a valuable method of radon mitigation, and it is rather cost-effective, but it won’t work for all homeowners.
Active Suction Systems
If your basement/crawlspace is covered with concrete, rather than dirt flooring, then a more active suction system will be required to remove radon. Radon gas has a tendency to build up under the concrete in your basement and then is released once cracks start to form in the flooring. An active suction system will use a specialized fan that vents the gas out from under your flooring and out of your home. Afterward, the service personnel will seal the remaining cracks in your flooring to prevent more radon leaks.
Passive Suction Systems
A passive suction system, as opposed to an active one, is generally built into homes for the purpose of preventing radon gas from building up. It uses different levels of pressure in different rooms to create an airflow that continuously moves throughout the home and into other areas. These systems can keep radon levels low but are ineffective at removing high levels of radon gas that already exist or have built up over long periods of time.