Life Safety Codes: Chapter 4 General Requirements Flashcards
4.1.1 Classification
Fire doors and fire windows shall be classified by designating a required fire protection rating expressed in hours or fractions thereof.
Author Note (Classification)
Fire door assemblies have fire rating durations expressed as 20,30,45,60,90, and 180 minutes.May also be expressed as 1/3, 1/2, 3/4, 1, 1-1/2, 3 hours. Fire door assemblies are comprised of components that may have different fire rating durations. The fire rating of the overall assembly will be based on the component with the lowest fire rating duration. If the door is rated 60 minutes, the frame rated 90 minutes and the lock is rated 20 min the overall fire rating of the assembly will be 20 min.
4.1.3 Appurtenances Author Note
No Definition. Author Note: This is a key area because it provides info on what preparations are permitted on a fire door assembly at the job site and what preparations must be performed under an inspection service procedure, with label service by a listing and labeling agency acceptable to the AHJ. As a Fire Door Inspector, field modifications will be one of the key areas you need to focus on during your inspections. Knowing what modificatios are need to be completed where the door is labeled (under label service) is very important.
4.1.3.1 (Appurtenances)
Preparations of fire door assemblies for locks, latches, hinges, remotely operated or remotely monitored hardware, concealed closures, glass lights, vision panels, lovers, astragals, and split astragals, and the application of plant-ons and laminated overlays, shall be performed in accordance with the manufacturer’s inspect service procedure and under label service.
Author Note: This provides details on what preparations must be accomplished under an inspection service procedure with label service by a third party listing a labeling agency.
4.1.3.2 (Appurtenances)
For job site preparations of surface applied hardware, function holes for mortice locks, and holes for labeled viewers, a maximum 3/4 in (19mm) wood and composite door under cutting, and protection plates (see 6.4.5) shall be permitted.
Author Note: Provides details on what preparations can be performed on a fire door assembly at the job site.
4.1.3.3 (Appurtenances)
Surface applied hardware shall be applied to the door or frame without removing material other than drilling round holes to accommodate cylinders, spindles, similar operational elements, and through bolts in doors.
Author Note: Covers guidelines on surface applied hardware and limitations on the material that may be removed from the door assembly when the surface applied hardware is installed.
4.1.3.4 (Appurtenances)
The holes described in 4.1.3.3 shall not be permitted to exceed a diameter of 1 in (25.4 mm) with the exception of cylinders.
Author Note: Provides the size or diameter of the hole that is permitted when installing surface applied hardware. (very important)
4.1.4 Signage
Informational signs shall be permitted to be installed on the surface of fire doors in accordance with 4.1.4.1 through 4.1.4.4 or in accordance with the manufacturer’s listing.
4.1.4.1 (Signage)
The total area of all attached signs shall not exceed 5 percent of the area of the face of the fire door to which they are attached.
4.1.4.2.1 (Signage)
Signs shall be attached to fire doors by use of an adhesive.
4.1.4.2.1 (Signage)
Mechanical attachments such as screws or nails shall not be permitted.
4.1.4.3 (Signage)
Signs shall not be installed on glazing material in fire doors.
4.1.4.4 (Signage)
Signs shall not be installed on the surface of fire doors so as to impair or otherwise interfere with the proper operation of the fire door.
