DOORS CLOSE WITH FIRE ALARM
TranZform Fire Accordion Folding Fire Doors from Cornell Iron Works Inc. automatically close upon alarm. Fitting any door frame from 3 1/2- to 22-feet high, the doors can be used in openings that are part of a required means of egress. Units require less headroom than rolling fire doors and because they store out of sight, they preserve design aesthetics. The doors have achieved up to a 3-hour UL fire rating. (800) 233-8366; www.cornelliron.com