Passive radon remediation systems do not have fans, aiming to utilise natural processes to achieve results. They therefore generally have lower ongoing costs than active systems.
Passive radon treatment methods
There are two methods of passive radon remediation: 1. Create a barrier 2. Natural airflow. Natural flow can be achieved with either airbrick/vents or sump systems.
Create a barrier
Damp proof membranes and floor sealing
Air bricks and vents, and sump systems