![]() Some typical examples of doors in health care facilities which are required by Section 509.4 to be fire rated are Group I-2 laboratories, patient rooms equipped with padded surfaces, physical plant maintenance shops, waste and linen collection rooms with large containers, laundry rooms and storage rooms over 100 square feet, and non-sprinklered boiler and furnace rooms which meet certain criteria. The IBC Commentary states: “this provision is primarily intended to apply to care recipient sleeping room corridor doors,” but it could also apply to other corridor doors that are not part of a vertical opening/exit (stair or shaft), and which do not require a fire rating per Section 509.4 – Separation and Protection for incidental uses. ![]() Typical Location: These requirements apply to smoke partition corridor doors in Use Group I-2 (foster care facilities, detoxification facilities, hospitals, nursing homes, psychiatric hospitals). Type 1: Doors required to provide an effective barrier to limit the transfer of smoke The requirement for testing in accordance with UL 1784 (and the same allowable maximum) is also included in NFPA 105 – Standard for Smoke Door Assemblies and Other Opening Protectives. Gasketing manufacturers’ catalogs indicate which products are listed for this purpose. ![]() These doors will typically have an “S Label” which states that the assembly meets the requirement when classified gasketing is installed. If the door must be tested without the artificial bottom seal it would typically require a sweep or automatic door bottom – both during the test and on the final assembly installed in the field.įor the purpose of this analysis, doors that have to meet these limits are noted with a requirement for gasketing. For most doors, a seal at the bottom is not mandated, unless the door is required to meet the stated limits without the artificial bottom seal installed during the test ( those locations are shown in this blog post). When door assemblies are required to meet this limit, it is difficult or impossible to achieve these values without gasketing at the head, jambs, and meeting stiles. The maximum amount of air flow allowed by the IBC is 3.0 cubic feet per minute per square foot of door opening at 0.10 inch (24.9 Pa) of water for both the ambient temperature test and the elevated temperature exposure test. Gasketing is typically required when a door assembly must limit air infiltration to a maximum value stated in the code when tested in accordance with UL 1784 – Air Leakage Tests of Door Assemblies.įirst, a few words on gasketing…Some smoke doors are required to limit air/smoke infiltration to a certain level when tested in accordance with UL 1784 – Air Leakage Tests of Door Assemblies. UL 1784 – Air Leakage Tests of Door Assemblies Keep in mind that other codes may have different requirements for these doors, so refer to the code and edition that applies to your project’s jurisdiction. To read about the requirements for a particular smoke door, first determine which of the 5 types applies to the door in question and refer to that section below.
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