N.Y.C. Admin. Code § BC 2410: Section BC 2410: Marking of Transparent Doors and Fixed Adjacent Transparent Sidelites

2410.1 Requirement.

Transparent doors and fixed adjacent sidelites shall be marked in accordance with Sections 2410.3 through 2410.4.

Exceptions:

1. One- and two-family dwellings.

2. Fixed adjacent transparent sidelites 20 inches (508 mm) or less in width with opaque stiles at least 1 3/4 inches (44 mm) in width.

3. Where the ground, floor or equivalent surface area in the path of approach to a fixed adjacent transparent sidelite from either side for a minimum distance of 3 feet (914 mm) from such sidelite is so arranged, constructed or designed as to deter persons from approaching such sidelite or a permanent barrier is installed in the path of approach, provided that:

3.1. Decorative pools, horticultural planting or similar installations shall be considered as indicating that the ground, floor or equivalent surface area is not a path of approach.

3.2. Planters, benches and similar barriers which are securely fastened to the floor or wall to prevent their removal shall be considered as blocking the path of approach provided they shall be not less than 18 inches (457 mm) in height from the ground, floor or equivalent surface and extend across at least 2/3 of the total width of the glazed area of the sidelight.

4. Fixed adjacent transparent sidelites which are supported by opaque sill and wall construction of at least 18 inches (457 mm) above the ground, floor or equivalent surface immediately adjacent.

5. Display windows in any establishment, building or structure which fall within the definition of a sidelite if the top of the supporting sill and wall construction is not less than 18 inches (457 mm) above the ground, floor or equivalent surface immediately adjacent and the interior area is occupied with merchandise or similar displays to clearly indicate to the public that it is not a means of ingress or egress.

6. Opaque door pulls or push bars extending across at least two-thirds of the total width of the glazed area.

2410.2 Locations.

Transparent doors and fixed adjacent transparent sidelites shall be marked in two areas on the glass surface. One such area shall be located at least 30 inches (762 mm) but not more than 36 inches (914 mm) above the ground, floor or equivalent surface below the door or sidelite, and the other at least 60 inches (1524 mm) but not more than 66 inches (1676 mm) above the ground, floor or equivalent surface below the door or sidelite.

Exception. The use of horizontal separation bars, muntin bars or other equivalent bars at least one and one-half inches in vertical dimension that extend across the total width of the glazed area and are located at least 40 inches (1016 mm) but not more than 50 inches (1270 mm) above the bottom of the door or sidelite is permitted in lieu of markings.

2410.3 Design.

The marking design shall be at least 4 inches (102 mm) in diameter if circular or 4 inches (102 mm) in its least dimension if elliptical or polygonal, or shall be at least 12 inches (305 mm) in horizontal dimension if the marking is less than 4 inches (102 mm) in its least dimension. In no event shall the vertical dimension of any marking including lettering be less than 1 1/2 inches (38 mm) in height.

2410.4 Materials.

Markings may be comprised of, but are not limited to:

1. Muntin bars, separation bars or other equivalent bars;

2. Chemical etching;

3. Sandblasting;

4. Adhesive strips;

5. Decals; or

6. Paint, gilding or other opaque marking materials.