Passive vs. Active Radon Systems: Exploring the Pros and Cons to Help You Pick the Right Solution

Radon is a radioactive gas that is colorless, odorless, and tasteless. It is formed naturally from the decay of uranium in rocks and soil. Radon can enter houses and structures through foundation, wall, and floor fissures. High radon levels can cause lung cancer, particularly in smokers.

​This article will compare passive and active radon mitigation systems to help homeowners choose the right solution to reduce radon levels in their homes.

Passive radon mitigation systems use natural airflow to reduce radon levels in a home. On the contrary, active radon mitigation systems actively use fans and other equipment to reduce radon levels.
​
Read on to learn more.

Passive Radon Mitigation Systems

Passive radon mitigation systems rely on natural air movement to reduce radon levels in the home. These systems are typically installed during the construction of a new home or added as a retrofit to an existing home.

​They work by creating a pressure difference between the soil beneath the home and the interior of the home, which causes radon gas to move away from the house.

Passive radon mitigation systems typically contain a vent pipe from the home's foundation to the roof. This vent pipe allows radon gas to escape beneath the home and vent into the atmosphere. A fan is not used in this system; it relies on natural air movement to carry the radon gas away from home.

Pros

• Less Maintenance: Passive systems require less maintenance than active systems. They have no moving parts. So, there is little chance of system failure. Furthermore, because they rely on natural air circulation, there is no need to continually monitor or alter the system.
  
• Cost-Effectiveness: One of the primary benefits of passive radon mitigation systems is that they are less expensive than active systems. They do not require a fan, which can cut installation expenses dramatically.
  

Cons

• Reduced Effectiveness: Compared to active systems, passive radon mitigation devices are typically less effective at lowering radon levels. They rely on natural air circulation, which varies according on weather and other reasons.

​Dependent on Air Pressure: Passive systems are also dependent on air pressure differences between the soil beneath the home and the interior of the home. If these pressure differences are insufficient, the system may not effectively reduce radon levels.

Active Radon Mitigation Systems

Active radon mitigation systems are more effective than passive systems, and they work by actively removing radon from home.

​They typically consist of a fan and ventilation pipe system that creates negative air pressure in the soil surrounding the home, which helps to draw radon gas out from beneath the home's foundation and vent it safely to the outside.

Pros

​

• More Effective: Active radon mitigation systems are more effective than passive systems in reducing radon levels in the home. They can reduce radon levels by up to 99%.

​Can Be Customized to Specific Needs: Active systems can be tailored to a home's requirements. For example, a larger fan can increase the system's effectiveness if a home has a particularly high radon level.

Cons

​

• Higher Cost: Active radon mitigation systems are generally more expensive than passive systems due to the additional equipment needed.

Requires Maintenance: Active systems require ongoing maintenance, such as fan replacement or cleaning of the ventilation pipes, to ensure they continue to function effectively.

Making the Right Choice

Choosing the right radon mitigation system for your home involves considering several factors.
​

• Home's Specific Needs: The radon level in your home, the size and layout of your home, and the location of the radon source are all factors that can affect the choice of a radon mitigation system.


• Budget: Passive radon mitigation systems are generally less expensive than active systems but may not be effective enough for some homes.
  ​
  
• Location: The location of your home can also affect the choice of a radon mitigation system. For example, homes in areas with high radon levels in the soil may require a more powerful active system.

Importance of Professional Installation

Regardless of the type of radon mitigation system you choose, it is essential to have it installed by a qualified professional.

​This will ensure that the system is installed correctly and will function effectively to reduce radon levels in your home.

Conclusion

Radon is a serious health hazard, but there are ways to reduce its levels in the home. Passive and active radon mitigation systems have advantages and disadvantages.

Still, by considering your home's specific needs and budget, you can choose the right system to protect your family's health. Always have your system installed by a qualified professional to ensure it works effectively.

​Reducing radon levels in your home is essential in ensuring your family's safety and well-being.