Q: Does the standard for surfaces apply to the whole building when insulating a multi-family building?

For interiors, the exception for work that disrupts six square feet or less of painted surface applies to each individual room and is inclusive of all work done in the room in any 30-day period....

For interiors, the exception for work that disrupts six square feet or less of painted surface applies to each individual room and is inclusive of all work done in the room in any 30-day period.  For exteriors, to qualify for the exception for minor repair and maintenance activities, the total amount of exterior paint disrupted must be 20 square feet or less.  In addition, the job must not use prohibited practices or involve window replacement or demolition of painted surfaces.