Minnesota Updates Radon Regulations in State Building Code

The Minnesota Building Code first layed out specifications on how to construct radon resistant buildings in 2009, and the regulations recent received an update. According to the Minnesota Star Tribune, the latest updates are in regards to the difference between and active and passive radon mitigation system. Essentially, the difference is that active systems have fans while passive systems do not.

As a certified contractor for the National Radon Defense Network, we have always followed industry standards and best practices. While quality radon contractors everywhere have always relied on these rules for radon mitigation systems, they are now official in Minnesota. The updated regulations are as follows:

First, the fan must suck out from under the house without the potential for leaks into the home. The fan itself and any portions of pipe under positive pressure cannot be located inside the conditioned space of the home.

Second, a monitoring device must be installed to ensure the system is functioning properly. A manometer is a common testing device that consists of a U-shaped tube of colored liquid with a flexible plastic tube running into the vent. When suction moves the liquid, you know the fan is working.

Third, a switch light and outlet must be installed near the radon mitigation system. These ensure that proper lighting and electricity will be available.

While these are not drastic alterations to building code, they are certainly another step in the right direction for radon resistant construction in Minnesota. Call Twin Cities Radon Services at 1-612-245-3222 to request a radon test or to schedule a free in-home consultation for radon mitigation.