48x48 - B-IT Insulated Fire Rated Access Panel
Babcock-Davis BI-Series: BIT fire-rated, insulated access doors provide access through openings in fire rated vertical or horizontal surfaces. UL Listed "B" label for 1-1/2 hours in vertical surfaces (maximum temperature rise to 250F in 30 minutes). Warnock-Hersey listed for 3 hours in horizontal surfaces BIT fire-rated access doors are designed with a one inch exposed flange for flush installation in any vertical or horizontal surface.
NOTE: Available for Ceiling applications only up to 24"x36" (if larger please refer to B-FRD)
20-gauge cold rolled steel
16-gauge cold rolled steel
1" flange for all surfaces
Flush continuous piano hinge
Knurled knob/key operated latch bolt (Standard)
Paintable powder coat
2" thick fire rated mineral fiber
Fire rated smoke barrier access doors are available with a certified smoke leakage rating (style: ITK-SFB).
Rough opening is door size + 1/4".
Interior latch release mechanism is standard.