The first step in installing an SSD system is called a communication, or Radius of Influence (ROI) test. This procedure allows the vapor removal specialist to quantify the airflow and pressure needed to depressurize the area directly beneath the buildings’ concrete floor. Some buildings require high airflow at low pressure and some require the…
Throughout my years of working in the field, I have seen many types of “blunders” in vapor removal systems. I have seen suction points not properly sealed, oversized systems, grossly undersized systems and plenty of energy loss mistakes. The one mistake that always seems to make me stop dead in my tracks is when I…