Title 24 Requirements for Schools and Educational Buildings
Ventilation drives a school project more than lighting does. Section 120.1 determines the zone outdoor airflow rate from the expected number of occupants, and a classroom packs more people per square foot than almost any other space.
Ventilation follows people, not floor area
For spaces designed for an expected number of occupants, or with fixed seating, Section 120.1 determines the zone outdoor airflow rate by equation from the expected occupant count that the building designer specifies. In an office that number is modest. In a classroom it is not.
That single mechanism is why a school building of a given size carries far more outdoor air than a commercial building of the same size, and why the mechanical design leads the project.
The occupant count is a design input, not a given
Because the figure comes from the designer's stated expected occupancy, it has to be defensible and it has consequences. An optimistic classroom capacity raises the ventilation requirement for the life of the building; an understated one produces a system that will not satisfy the space in use.
Lighting across a genuinely mixed campus
Classrooms, corridors, stairwells, a library, a gymnasium, administration offices and outdoor areas each carry their own treatment. Corridors and stairwells require occupant sensing in their own right, as do library stack aisles — which is one of the few places the code names a space type that only appears in institutional buildings.
Daylight is usually available and usually worth claiming
School buildings tend to be shallow-plan with good glazing, which makes daylight responsive controls genuinely effective and eligible for a power adjustment factor. The credit has to be documented in the construction documents and verified in the field by acceptance test — so it has to survive into the built job to count.
Testing on a live campus
Lighting controls and mechanical systems both require acceptance testing by a certified technician, and school work is frequently phased into holidays. Booking the tests inside the available window is a programme constraint rather than an afterthought.