BASIC USE BIS is a traffic-bearing expansion joint for parking structures with shallow concrete decks and other open-air structures requiring seismic movement and heavy-duty low-profile load bearing designs. FEATURES For wide joints with multi-directional seismic movement of +/-50% or +/-100%. Low profile aluminum frames facilitate installation into shallow blockouts and concrete decks. High-density rubberContinue reading “BIS: Bolt-In Seismic Slide Plate Cover”