Trusted Broomfield Radon Mitigation

Some minor vibration is normal with any mechanical fan, but excessive vibration transmitted throughout the pipe system is a sign that something needs to be addressed. Rubber vibration-isolation couplings should always be installed at the fan's inlet and outlet connections to absorb motor vibration before it reaches the PVC pipe. If these couplings are missing, cracked, or hardened with age, replacing them is an inexpensive fix that can dramatically reduce noise and vibration. Persistent vibration even after installing new couplings may indicate that the fan is not properly secured in its mounting position or that the fan itself has a motor imbalance issue.

A radon fan is the engine of a sub-slab depressurization system, creating a zone of negative pressure beneath the foundation that prevents radon gas from entering the home. It continuously draws radon-laden air through a pipe and exhausts it safely above the roofline, where it disperses harmlessly into the outdoor atmosphere. Without the fan running, the pressure differential disappears and radon can migrate freely through cracks, joints, and porous materials in the foundation. Most fans are designed to run continuously around the clock, every day of the year.

Radon fans installed in unconditioned spaces like unheated garages or exteriors can be exposed to extreme cold, which can affect fan performance and longevity over time. While most quality fans are designed to operate in cold temperatures, condensation from the exhaust air can freeze inside the pipe in very cold climates, potentially blocking airflow or damaging the fan. In regions with harsh winters, it is advisable to use a fan model specifically rated for cold-weather operation and to ensure the exhaust pipe termination is positioned to prevent ice buildup. Insulating exposed sections of pipe can also help reduce condensation-related issues in cold climates.