- Breathing home indoor radon causes nearly one hundred times more deaths each year than carbon monoxide poisoning.
- Radon is the second leading cause of lung cancer.
- Some 20,000 people will die this year due to breathing too much radon without even knowing it.
- Radon is estimated to be a health risk in as many as one in fifteen homes throughout the country.
- One in eight homes in Michigan (EPA's map of Michigan radon zones) have elevated levels of radon
My goal this month is to raise your awareness of Radon and to teach you how we at Image Design take extra steps in our plans to reduce your risks of Radon.
At Image Design we include all these Radon prevention techniques in our sets of plans:
- Gas Permeable Layer. This layer is placed beneath the slab or flooring system to allow the soil gas to move freely underneath the house. In many cases, the material used is a 4-inch layer of clean gravel.
- Plastic Sheeting. Plastic sheeting is placed on top of the gas permeable layer and under the slab to help prevent the soil gas from entering the home. In crawlspaces, the sheeting is placed over the crawlspace floor.
- Sealing and Caulking. All openings in the concrete foundation floor are sealed to reduce soil gas entry into the home.
- Vent Pipe. A 3- or 4-inch gas-tight or PVC pipe (commonly used for plumbing) runs from the gas permeable layer through the house to the roof to safely vent radon and other soil gases above the house this system is called Passive Radon Mitigation. If , after your house is complete, a test determines that levels are still too high, you may have to convert to an Active Radon Mitigation System by installing a fan than runs continuously which creates low pressure under the slab and increases the rate of gas evacuation..
- Junction Box. An electrical junction box is installed in case an electric venting fan is needed later.
For more information please visit these web-sites.