A radon mitigation system installed in the attic hides the fan and vent pipe inside the home, leaving only a vent stack above the roof. Attic installations reduce radon just as effectively as exterior systems, while offering a cleaner look, quieter operation, and better protection for the equipment.
Why have a professional Install your Radon Mitigation System In The Attic:
Hidden attic radon system components
Rather than having the fan and vent pipes installed on the side of the house, the only visible exterior component is the vent stack rising through the roof, similar to an existing plumbing stack.
Radon fans are better protected from the elements. Radon systems create condensation within the suction and exhaust pipes. In cold environments, this condensation can freeze and affect the life of the radon vent fan. Radon fans inside attic spaces are better protected from the freeze and thaw cycle.
Radon fans and electrical components are out of reach. When installed through the attic space, the radon fan and its electrical components are located within the attic. This location is more inaccessible to children who may turn the fan off or play with the system components.
Quieter radon systems. Although radon systems installed through the exterior are quiet, installing the fan inside attic space can prevent all noticeable system noise.
System performance indication. Most attic installations are routed through the garage. This method allows the installer to place the system performance gauge right in the garage. Every time you enter your garage you can make certain that your radon system is on and pulling the vacuum.
Attic radon systems and home resale value
Many people with radon systems are concerned about the effect of the resale value of their home. A radon system installed through the attic is more appealing to potential buyers as it is not a noticeable component on the outside of the house.
Reduced radon re-entry
Having the vent stack opening above the roof of the house makes it possible for the radon contractor to get the radon system exhaust further away from doors, windows and other openings. This will minimize the possibility of radon re-entry into the home.
What to do if a mitigation system cannot be installed in the attic
Radon mitigation systems installed on the exterior of the home are effective and have stood the test of time and will prevent the flow of radon gas. If your home does not have a location available to install the system through the attic, an exterior radon system will effectively reduce radon gas levels.
When choosing the type of radon mitigation system for your house, there are benefits to installing the mitigation system through the attic space. Learn more about our mitigation services.
Frequently Asked Questions
Yes. Building code requires the radon fan to sit in an unconditioned space such as a ventilated attic, garage, or outside, never in a living area. Installing the fan in the attic keeps it hidden while still drawing radon from beneath the home and venting it safely above the roofline.
Yes. An attic radon mitigation system reduces radon just as effectively as an exterior system. Both use a fan to create suction beneath the foundation and vent radon above the roof. The main differences are appearance, noise, and equipment protection, not how well the system lowers your radon level.
In an attic installation, the fan and most of the vent pipe run through the interior of the home, often up through the garage and into the attic. The only visible exterior component is the vent stack rising through the roof, similar to a plumbing stack.
They can be. Radon fans are generally quiet, but placing the fan inside the attic adds a layer of separation and insulation that further reduces any noticeable noise. The attic also protects the fan from weather and freezing condensation, which can extend the life of the equipment.
An attic radon system can be more appealing to buyers because the fan and pipes are hidden, leaving only a discreet vent stack on the roof. A tidy, well-placed system signals a well-maintained home and avoids the visible exterior piping some buyers see as a drawback.
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Request service to get a free quote on your radon mitigation system installation – and ask us about our options for installing your system in the attic!
