auradeus

Thank you all. I am not opposed to installing a radon mitigation system, if conservative measures do not work, that's exactly what I will do. But I feel given the relatively low radon exposure and the fact sealing the penetration will take an hour tops of my time, why not try it. Jim, you mentioned heavy rains have an even stronger effect on radon levels. Thank you for sharing this, I did not realize this. Up until this summer, the back yard was pitched toward the house and rainwater from the downspouts would flow right up against the house. I have solved this by regrading and installing d

Looking for some advice on a minor radon issue I'm facing. I've tested radon several times over the past two years, including two three-month tests. Radon levels are generally below 4 pCi/l, but one test did spike to 5.5 pCi/l. Radon is only at higher levels in the basement, which is very airtight (new construction, built in 1997). Related to the 5.5 pCi/l test (a 3-month test), where I live near Boston received record winter snow during the test. It is likely the pressure of the snow increased flow of radon into the basement. Looking to try conservative radon mitigation techniques before