Radon: What it is and how to mitigate it

​Radon is a colorless, odorless, and tasteless radioactive gas that is naturally present in the environment. It is formed from the decay of uranium in soil, rocks, and water, and can seep into homes through cracks in the foundation, gaps around pipes, and other openings. Long-term exposure to high levels of radon can increase the risk of developing lung cancer.

To reduce radon levels in your home, here are a few steps you can take:

1. Test for radon: Use a radon test kit to determine the radon levels in your house. These kits are available at many home improvement stores or online. You can opt for short-term tests that take days to weeks or long-term tests that measure radon levels over several months.

2. Sealing cracks and openings: Seal any gaps or cracks in the foundation, walls, floors, and around pipes, as these are common entry points for radon. Use caulk, expanding foam, or other appropriate sealing materials to close them properly.

3. Improve ventilation: Adequate ventilation helps reduce radon concentrations. Ensure proper airflow by opening windows or installing fans in the basement or other areas where radon levels are higher. Installing a radon mitigation system (explained in the next step) will also improve ventilation.

4. Radon mitigation systems: If radon levels are high, installing a radon mitigation system is recommended. The most common type is a sub-slab depressurization system, where a pipe is inserted through the basement slab or crawlspace to vent radon gas outside, typically above the roofline. A fan connected to the pipe creates suction, removing radon gas and preventing its entry into the house.

5. Seek professional help: For accurate testing and appropriate mitigation, it is often recommended to consult a professional radon mitigation contractor. They can perform more advanced testing, provide insights into radon-related risks specific to your home, and install mitigation systems tailored to your needs.

It's important to note that radon levels can vary from house to house, even within the same neighborhood. Regular testing is essential to ensure that radon levels remain low to keep your home safe.