Where are riser clamps on standpipes required in multistory buildings?

Riser clamps on standpipes in multistory buildings are required at every floor penetration to ensure proper support and stability of the standpipe system. This requirement is essential because as the standpipe rises through various floors, it must be secured at intervals to prevent excessive movement or vibration that can occur due to water flow and pressure changes. Properly installed riser clamps help to maintain the integrity of the piping system and reduce the risk of damage and leaks, which is crucial for safety and functionality in fire protection systems. By securing the piping at each floor, the system is less likely to experience failures, which could put the entire fire protection operation at risk.