Question 5: How does Radon enter your home?


Air pressure inside your home is usually lower than the pressure in the soil around your home’s foundation. Because of this difference in pressure, your home acts like a vacuum, drawing Radon in through foundation cracks, crevices, holes, pipe lines, drain lines, pipe penetrations, joints and service openings.


Radon may even seek through the foundation material itself if it is porous. Your home then traps the Radon inside, where it can build up.


New wall insulations and therefore well-sealed homes may increase the Radon concentrations inside your home.