However, sealing isn't sufficient and must be complemented with radon reduction systems, such as sub-slab depressurization ...
Experts say exposure to radon is the leading cause of lung cancer in Pennsylvania. It is also the leading cause of lung cancer deaths among non-smokers in the United States. It's estimated that 40 ...
EPA recommends contacting a licensed professional to install a radon reduction system if your radon level is at or above 4 ...