Hospital setting; stairwell door frames with no stickers or tags attached.
From I Dig Hardware ,,, give credit !!
There’s A LOT of information about the hourly designations of fire-rated frames in the UL Certifications Directory, but the most concise answer to whether the hourly designation has to be on the label is in SDI-118. This is a publication of the Steel Door Institute called “Basic Fire Door Requirements,” and it includes a paragraph that sums it up clearly: “Fire doors frames are not affected by the exposure ratings and opening classifications that apply to doors. There are no hourly ratings for a basic fire door frame unless the labeling on the frame specifically states that the frame is rated for something less than 3 hours. If a frame bears a recognized label qualifying it as a fire door frame, it may support a 3-hour, a 1-1/2-hour, a 3/4-hour, or a 1/3-hour door. Frames used in masonry walls may be used with a maximum 3-hour fire door, while frames used in drywall walls are intended to be used with a maximum 1-1/2-hour fire door.” So if there’s no hourly designation on the label, the frame would typically be acceptable for up to 3 hours depending on the wall type, but the rating of the assembly is equal to the lowest-rated component. So if the frame is good for up to 3 hours and it’s a 90-minute door, it’s a 90-minute assembly (if the hardware, glass, etc., are correct). Sidelite, transom, and borrowed lite frames in rated walls will have an hourly designation on the label because they would not qualify for a 3-hour rating.
Here’s what NFPA 80-2007 says about labeling frames for fire doors:“18.104.22.168* Only labeled door frames shall be used. A.22.214.171.124 Door frames might carry a label stating the hourly rating. The rating of the installed assembly should carry the rating of the door or the door frame, whichever is less.”
a lot of great info on the site
No you do not need to relabel the door frame. The label on the frame might not be steel, brass, aluminum, and non-metallic materials such as foil and mylar, but are embossed on the frame. The listing agency marks on the frames is all I look for during inspections.
Embossments directly applied to doors and frames may be painted as long as the listing agency mark and all listing information is legible. Labels are located on the frame rabbet between the top and middle hinges.
You may have to sand down any paint that may have hidden the embossment.
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