We have a project that is an addition to an existing school. The existing classrooms are included in the LEED boundary, but they have only had minor updates of mechanical systems. Does LEED for Schools 2007 EQ Prerequisite 3 allow for excluding these existing classrooms from the STC requirements?
My guess would be no. I haven't seen anything that would let you exclude them if they are part of the LEED boundary. It would probably be best to check with USGBC on the issue just to be sure.