Mitigation

Radon mitigation is any process used to reduce measured radon levels in occupied buildings.

We use many different methods to reduce the radon levels in the building being mitigated which allows us to design mitigation systems that we can guarantee will produce results below 2.6 pCi/L. We do this through the whole house approach. This involves primary(active) and secondary(passive) techniques.

Active Soil Depressurization (ASD) is the most common technique. Sub-slab Depressurization (SSD), Sub-membrane Depressurization (SMD) and Block Wall Depressurization (BWD) are the most common ASD mitigation types and are proven to be very effective. When it is not possible or practical to depressurize below or around a building envelope, other methods can be employed. This typically involves the installation of an Energy Recovery Ventilator (ERV).

Sub Slab Depressurization
This is the process of installing a fan and vent pipe to apply more pressure to the soil under the slab than the building does. We design our systems during diagnostic testing using sensitive scientific equipment to determine the best location(s) to install depressurization points, the amount of pressure required and the appropriate size of vent pipe and fan. Once this information is known, the routing of the vent pipe and the location of the vent fan can be identified and the system installed.