Radon Mitigation

Radon Mitigation

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To understand how a radon mitigation system works, a person should know why they have elevated radon levels to begin with.
Every home, as a structure, creates a suction upon the earth on which it sits. Heat rising in the house, exhaust fans and other factors play a part in drawing the radon into the home. A radon mitigation system does not remove radon from the home. The mitigation system intercepts the radon before the gas enters the home. It does this by employing a fan which essentially ‘overpowers ‘ the draw of the house enabling the radon mitigation system to capture the radon gas prior to entrance of the home. The consequence of this is that the release point of the mitigation system has much higher levels of radon gas than the initial radon gas test revealed. Proper configuration of the release point of the radon mitigation system is paramount. Close does not count.EPA Radon Mitigation Standards. Section 14.2.8 specifically state that a radon mitigation system has to comply with 4 rules.
  1. “Be ABOVE the eve of the roof “. { even with or equal to does not equate to ABOVE }
  2. “be 10 feet or more above ground level”.
  3. “be 10 feet or more from any window, door, or other opening into conditioned spaces of the structure that is less than 2 feet below the exhaust point”. { this means a release point must be Either 2 feet above Or 10 feet away from any openable window or door. }
  4. ” be 10 feet or more from any opening into an adjacent building. The total required distance { 10 feet } from the point of discharge to openings in the structure may be measured either directly between the 2 points or be the sum of measurements made around intervening obstacles. Whenever possible, the exhaust point should be positioned ABOVE the highest eve of the building and as close to the ridge roof as possible”.

There are 2 ways to power the fan in a radon mitigation system. 110 volts or 24 volts, basically high or low voltage. Guardian Home Inspections & Repairs – Radon Division can install both voltage systems. The power usage in both systems is the same. However an advantage to a 24 volt system is not needing a certified electrician to wire the fan which can save you money. Improperly wired high voltage appliances outdoors in Florida can be problematic.

Several other radon mitigation companies install 24 volt systems. The difference is in the details, strict adherence to the rules and regulations and of course the craftsmanship involved.

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