Interior Exit Stairs

Section 1022

Exit enclosures extend vertically through the interior of multi-story buildings in order to ensure timely and safe evacuation of occupants during an emergency. These enclosures include exit stairs and exit ramps.

Side Coiling with Complying Swing Egress Door(s)

An absence of stacking space necessitated a unique McKeon product to seal this exit enclosure. The side coiling assembly requires a small box-like space and projects its 3-hour steel curtain with a conventional egress door along a very narrow pocket entry point and header slot path. However, when closed, complete compliance with shaft enclosure opening protective requirements is quickly achieved.