In a data center, standby power is designed around one principle: failure is not an option. Yet the generator exhaust system—and particularly its joints—can receive far less specification-level attention than the generator itself. A leaking or compromised stack can create safety concerns, commissioning delays, backpressure issues, callbacks, and potentially require difficult repairs once the facility is operational.
This technical white paper is written for specifying engineers and mechanical contractors working on data centers and other mission-critical facilities. It examines the limitations of traditional sealant-based pressure stacks, the effects of repeated thermal cycling and SCR-related backpressure, and how gasketed joint technology can reduce installation variables while improving long-term leakage performance.