National Guard Products 424E Aluminum Saddle Threshold, 1/2″ x 4″ x 36″
Positive pressure classied by UL to ANSI/UL 10c; complies with IBC, NFPA 80 and NFPA 252 for application to steel fire doors rated up to 3 hours and wood fire doors rated up to 90 minutes. Classified by UL to ANSI/UL 10B and CAN/ULC-S104. Complies with NFPA 80 and NFPA 252 for application to Steel fire doors rated up to 3 hours and wood fire doors rated up to 90 minutes. ADA compliant barrier free thresholds meet the requirements of the 2010 ADA standards for accessible design and ICC/ANSI A117.1-2009 accessible and usable building and facilities. ANSI/BHMA certified. Certified gasketing complies with American National Standard for Door Gasketing and edge seal systems ANSI/BHMA A156.22-2012and is listed in the BHMA certified products directory.