Renovations of existing spaceThe Grandfather Clause -
Renovations in existing buildings may 'grandfather in' existing space restrictions (ceiling height, student NASM allocation, etc) where operational constraints or the building structure will not permit otherwise
When renovatating existing rooms the classrooms standards often cannot be applied rigously because:
(1) Existing structural grid will not allow classrooms of desired size and proportion (shape)
(2) Existing structural ceiling will not allow required ceiling height for image projection
(3) Existing room capacity may have to be retained, even though current standards call for more NASM per student. Sometimes it is necessary to renovate an old room but operational constraints cannot allow a decrease in capacity, so the old NASM allocation is grandfathered in.