What defines whether a smoke partition can have windows?

The defining factor for whether a smoke partition can have windows primarily depends on the design specifications set forth in the building's plans and specifications. These specifications detail how smoke partitions are intended to function within a given building context, including how they should limit the movement of smoke during a fire event.

Design specifications will address aspects such as the materials used, the required fire-resistance ratings, and the performance criteria necessary to ensure that the smoke partition can effectively contain smoke. If a smoke partition is designed to include windows, it must still achieve the intent of smoke containment and adhere to applicable fire safety codes.

While state regulations and the International Building Code do influence the broader regulatory environment in which the partition operates, the specific details regarding the inclusion of windows will often be determined at the design stage. Therefore, it is the planned design, along with how it meets safety requirements, that dictates whether windows can be included in smoke partitions.