Why Do I Need An SSD?
Because air pressure in homes and other buildings is lower than that of the surrounding soil, chemical vapors have the tendency to be drawn back into the building over time and pose a significant health and safety risk to the occupants. One of the most common and effective methods of preventing subsurface vapors from seeping into homes and other buildings is sub slab depressurization (SSD).
How Does an SSD Work?
Subslab depressurization (SSD). SSD is widely considered the most practical vapor intrusion mitigation strategy for both existing and new structures. An SSD works by drilling through the concrete and into the soil below, and venting gas via a fan powered vent to an outside area that does not threaten public health
In cases where vapor intrusion is not a major concern, a passive SSD system can be installed that does not rely on a fan to draw the vapor out. Instead, the outdoor air creates enough pressure differential to draw the vapors out safely.
How Can Terra-Petra Help?
Terra-Petra’s engineering staff has years of experience in Vapor Intrusion Mitigation Design.
We put our expertise and experience to work for you starting with a thorough consultation and investigation of your site, and then designing and installing the proper system needed. We have both active and passive SSD design capabilities, and will coordinate with the project architect, civil, structural, plumbing, HVAC as well as the landscape architect to deliver a design that meets your site-specific conditions.
Furthermore, Terra-Petra has made it a focus to become conversant with the many laws, codes and regulations in place at the city, county, state and national level so you don’t have to.
Contact Terra-Petra for for more information on Subslab Depressurization (SSD) systems today.