If you love the sturdiness of granite, concrete, brick or stone, never fear. Although these materials may emit small amounts of radon gas, the vast majority of radon found in homes comes from the underlying ground beneath the building, not from the building materials themselves.
Most Materials Are Perfectly Safe
While many beloved material choices might contain radium deep within, they are often too dense to allow any significant amount of radon gas to escape to the surface. Furthermore, radon has a half-life of about 92 hours, and it only takes 8 half-lives for most of the gas to decay. This means that in approximately a month, much of the gas has already decayed without ever having seen the light of day. Therefore, it is possible to have the design you dream of and still enjoy a radon-free home.