Testing Labels For Hollow Metal Door

- Jul 02, 2019-

All fire-rated doors and frames must include labels that indicate they've met all testing requirements. The label must be provided by a certified testing agency, such as Underwriters Laboratory, and may be embossed or mechanically fastened. Labels must indicate the door's duration, such as 90 minutes, and may not be obscured, painted over or tampered with in any way.