It’s hard to imagine that with the quiet classrooms, hallways and commons spaces, boisterous elementary students are hard at work. At the new Pleasant Ridge Montessori School for the Cincinnati Public Schools (CPS), the first LEED Registered School in the State of Ohio, an underfloor HVAC system makes this acoustical innovation possible. This is the first school designed by SHP Leading De- sign (SHP) to employ the use of an underfloor system.