“710.5.2.2 Smoke and draft control doors. Where required elsewhere in the code, doors in smoke partitions shall meet the requirements for a smoke and draft control door assembly tested in accordance with UL 1784. The air leakage rate of the door assembly shall not exceed 3.0 cubic feet per minute per square foot (0.015424m3/(s • m2)) of door opening at 0.10 inch (24.9 Pa) of water for both the ambient temperature test and the elevated temperature exposure test. Installation of smoke doors shall be in accordance with NFPA 105.”
The IBC again is stricter in its application than NFPA 101 is for this requirement – note the ICC commentary for this section which clearly identifies corridor doors are to meet UL 1784:
“Only doors in smoke partitions that are required elsewhere in the code to be smoke and draft control doors must comply with section. Section 407.3.1 requires corridor doors in Group I-2 to ‘limit the transfer of smoke’; therefore, those doors must meet this section.”
As such, IBC does require corridor doors in I-2 occupancies to meet UL 1784. This results in the effect that life safety surveys involving the use of NFPA 101, 2012 cannot technically mandate the installation of smoke gasketing either for existing or new construction involving corridor doors.
The same would not hold true for fire prevention inspections conducted under the International Fire Code for facilities constructed to meet either the IBC or the legacy Uniform Building Code (UBC) – previously adopted throughout Western Pacific regions of the US. What strategy should facility managers take about existing fire doors where edge sealing is not equipped on fire doors in their facility? Like so many things in code compliance, the answer depends on the specifics of your individual facility. If you need any assistance in understanding this parameter for your facility, AEGIS has fire protection specialists here to help you with code consulting services and inspection services that can help maintain compliance with fire door strategies. What about smoke barrier doors – do the codes say I need to install gasketing on these doors? This question will be answered in our next article of this series.
– Justin B. Biller, P.E., CHFM, CLSS-HC, CFPS | AEGIS Technical Director