b"per space, not per building. ForAnother change in the code islighting controls system might need example, if you are replacing all ofsection C503.7.1 that requires allto be provided for the new system. In the luminaires in a classroom, thenew interior and exterior lightingthese scenarios, a standalone lighting lighting watts per square foot for thatsystems to have lighting controls percontrol system or a system that is classroom would need to comply withthe new construction requirements.integrated into the fixtures may be the new construction power densityAn example of this would bethe most cost-effective solution.allowance, even if that classroomproviding lighting for a portion ofIn conclusion, it is important to is less than 20% of the area of thethe site that was previously unlit.be aware of the existing building whole building. The default approach would be torequirements of the 2021 WSEC. For exterior lighting, the allowancestie the new lighting system intoThe majority of space or water decreased 20-40% from the 2018the existing controls system, butheating equipment replacement WSEC to the 2021 WSEC. This meansit is likely that the existing lightingprojects will fall under an that even relatively new exteriorsystems in buildings constructedexception to the electrification lighting systems might not be able tounder previous versions of therequirements of the code and be replaced like-for-like when at leastcode are not configured to meetcan be completed without major 20% of the fixtures are being replaced.the lighting control requirementscode concerns. But even small Bulb replacement projects are stillof the 2021 WSEC. The lightingchanges to lighting systems may governed by Section 504: Repairs.controls vendor would needtrigger a requirement for lower This section was not revised in theto be contracted to update thewattage fixtures or updated lighting 2021 WSEC and still allows for bulbprogramming of the lighting controlscontrols. Knowing when to involve a and/or ballast replacements in existingsystem to incorporate the new codeconsulting engineering firm in your luminaires, as long as the replacementrequirements. If the existing lightingmaintenance projects can help avoid does not increase the lighting power. controls system is too old, a newheadaches during installation. I-BEAM GRANDSTANDS & PRESS BOXESCONTACT US:3255 Griffin AveEnumclaw, WA 98022(253) 852-0801PLATINUM PARTNE R Family Owned &OperatedTELESCOPIC AUDITORIUM STADIUM SEATING ANGLE FRAMEBLEACHERS SEATING BLEACHERSFor over 30 years Nor-Pac Seating has been providing project management, designassistance, and certified installation teams for seating venues throughoutWashington, Oregon & Alaska. Our ServicesOur certified, factory-trained technicians can inspect, service, and maintain every Spectator Seating Salesseating system we sell (and also those we don't) to the manufacturers Installationspecifications, ensuring years of safe, problem-free use. Design AssistanceProject ManagementParts and Services ICC-300 Code Compliant Safety Contract #22-373 and #22-374Inspection Serviceswww.nor-pacseating.comWAMOA JOURNALSPRING 2024 11"