What is the maximum air leakage rate allowed for door assemblies in smoke partitions?

The maximum air leakage rate allowed for door assemblies in smoke partitions is indeed governed by specific standards set forth in building codes, such as the International Building Code (IBC). For smoke partitions, the maximum permitted air leakage rate is established to ensure that smoke does not travel through the building unobstructed, thus providing adequate safety for occupants during a fire event. A door assembly with a maximum air leakage rate of 3.0 cubic feet per minute per square foot is designed to offer a balance between functionality and safety.

This limit is critical because it reflects a performance standard that helps to control smoke spread, a vital aspect of fire protection strategies. When door assemblies are tested for air leakage, they must be able to meet these established standards to be deemed compliant with code requirements. This compliance is fundamental for promoting safety and enhancing the effectiveness of smoke control systems within buildings. The other options reflect higher leakage rates, which would allow more smoke infiltration, compromising safety and the effectiveness of fire protection measures.