If you are employed in the construction industry, you certainly have heard the first two terms and know what they mean.  The third term may not be as familiar, but should be self-explanatory.  GRIPV systems integrate solar, or photovoltaic systems, directly into the green roofing on a project.  Although not a system prevalent in the US, these systems are being installed in Germany as competition for roof space between these eco-friendly installations increases. The main benefit of a GRIPV system