Treating Slabs and Basements for Radon

http://www.certi.us This video is based upon the Do-It-Yourself book Protecting Your Home From Radon which thousands of homeowners have used to either reduce radon themselves or be more informed when hiring a contractor. To obtain as copy of this book or learn how to become a radon professional go to: http://www.certi.us

Видео Treating Slabs and Basements for Radon канала Center for Environmental Research and Technology