The protocol for radon testing in multifamily dwellings differs from that of single family dwellings and typically involves a more thorough procedure. Multifamily buildings are defined as buildings with more than three attached dwellings.

A separate test must be done in each of the following:

• Each dwelling in direct contact with the ground or crawlspace
• Every non-residential ground contact room that:
  • is or can be made occupied with little or no modification
  • has air communication with occupiable areas (e.g. stairwells)
• Every 2,000 ft for large or open areas
• In the upper floors at least one test per floor
  • testing at least 10% of the dwellings per floor
  • staggering tests between floors

Treating radon in multi-family buildings is something we at Wisconsin Radon are experienced at and take great pride in. Click the button below to schedule a test.