Basement & Radon Solutions installed a sub-membrane radon mitigation system in the crawl space. A 4 radon depressurization suction line was installed in the crawl space. A radon vapor barrier covers the crawl space floor and suction line and was mechanically fastened to the foundation walls. The ventilation line was extend to the attic of the home. Then a radon fan was installed in the attic. A HP 220 Radon Fan R3 was installed. It comes with a 5-year Manufacture’s Limited Warranty and is 100% enclosed for assured protection. This system helped get the radon gas level down to 0.5 pCi/l! It was a pleasure helping Eric get this home ready to sell and make sure it’s happy, healthy, and safe!”