What structural load requirements must a metal facade meet in seismic-active regions?

Metal facades in seismic regions must be engineered to accommodate both lateral forces and building movement without detachment or cracking. Seismic engineering requires that façade panels, substructures, and anchor systems incorporate flexibility and energy absorption. This ensures the metal façade can move with the building during earthquakes while maintaining overall integrity. Typically, engineers incorporate slotted connections, flexible brackets, and shock-absorbing anchors to prevent stress concentration. Lightweight materials such as aluminum are preferred in seismic zones because they reduce façade mass, lowering the seismic load path. The system must also comply with regional standards such as ASCE 7, Eurocode 8, or local seismic codes. In multi-story structures, expansion joints must be designed at strategic intervals to accommodate inter-story drift. Engineers also evaluate potential falling hazards, ensuring panels remain secured even under severe shaking. Proper seismic engineering not only protects occupants but also minimizes post-earthquake repair costs, helping owners maintain operational continuity.