2927 WETMORE AVE 2016 Plans 2022-12-06

MEANS O�`-'GRESS 1013.6.1 Graphics. Every exit sign and directional exit form,not less than 30 inches (762 mm) and not more than 34 sign shall have plainly legible letters not less than 6 inches inches(864 mm). (152 mm)high with the principal strokes of the letters not less than 3/4 inch(19.1 mm)wide. The word"EXIT" shall Exceptions: have letters having a width not less than 2 inches (51 mm) 1. Where handrail fittings or bendings are used to pro- wide, except the letter "I," and the minimum spacing vide continuous transition between flights, the fit- between letters shall be not less than 3/8 inch (9.5 mm). tings or bendings shall be pernutted to exceed the Signs larger than the minimum established in this section maximum height. shall have letter widths, strokes and spacing in proportion to their height. 2. In Group R-3 occupancies; within dwelling units in Group R-2 occupancies; and in Group U occupan- The word "EXIT" shall be in high contrast with the cies that are associated with a Group R-3 occupancy background and shall be clearly discernible when the or associated with individual dwelling units in means of exit sign illumination is or is not energized. If a Group R-2 occupancies; where handrail fittings or chevron directional indicator is provided as part of the exit bendings are used to provide continuous transition sign,the construction shall be such that the direction of the between flights, transition at winder treads, transi- chevron directional indicator cannot be readily changed. tion from handrail to guard, or where used at the 1013.6.2 Exit sign illumination. The face of an exit sign start of a flight, the handrail height at the fittings or illuminated from an external source shall have an intensity bendings shall be pernutted to exceed the m�imum of not less than 5 footcandles(541ux). height. 1013.6.3 Power source.Exit signs shall be illuminated at 3. Handrails on top of a guard where pernutted along all rimes. To ensure continued illumination far a duration stepped aisles and ramped aisles in accordance with of not less than 90 minutes in case of primary power loss, Section 1029.15. the sign illumination means shall be connected to an emer- 1014.3 Handrail graspability. Required handrails shall gency power system provided from storage batteries, unit equipment or an on-site generator. The installation of the comply with Section 1014.3.1 or shall provide equivalent emergency power system shall be in accordance with graspability. Chapter 27. Exception: In Group R-3 occupancies; within dwelling Exceptions: units in Group R-2 occupancies; and in Group U occupan- cies that are accessory to a Group R-3 occupancy or acces- 1. Approved exit sign illumination means that pro- sory to individual dwelling units in Group R-2 vide continuous illumination independent of occupancies; handrails shall be Type I in accordance with external power sources for a duration of not less Section 10143.1, Type II in accordance with Section than 90 minutes, in case of primary power loss, 10143.2 or shall provide equivalent graspability. are not required to be connected to an emergency electrical system. 1014.3.1 Type L Handrails with a circular cross section shall have an outside diameter of not less than 1'/4 inches ' 2. Group I-2 Condition 2 exit sign illumination shall (32 mm)and not greater than 2 inches(51 mm).Where the not be provided by unit equipment battery only. handrail is not circular,it shall have a perimeter dimension of not less than 4 inches(102 mm)and not greater than 6'/4 SECTION 1014 inches (160 mm) with a maximum cross-sectional dimen- HANDRAILS sion of 2/4 inches (57 mm) and minimum cross-sectional dimension of 1 inch(25 mm).Edges shall have a mimmum 1014.1 Where required. Handrails serving stairways, radius of 0.01 inch(0.25 mm). ramps, stepped aisles and ramped aisles shall be adequate in 1014.3.2 Type II.Handrails with a perimeter greater than strength and attachment in accordance with Section 1607.8. 6'/4 inches (160 mm) shall provide a graspable finger Handrails required far stairways by Section 1011.11 shall recess area on both sides of the profile. The finger recess comply with Sections 1014.2 through 1014.9. Handrails shall begin within a distance of 3/4 inch(19 mm)measured required for ramps by Section 1012.8 shall comply with Sec- vertically from the tallest portion of the profile and tions 1014.2 through 1014.8.Handrails far stepped aisles and achieve a depth of not less than 5/16 inch(8 mm) within'/g ramped aisles required by Section 1029.15 shall comply with inch(22 mm)below the widest portion of the profile.This Sections 1014.2 through 1014.8. required depth shall continue for not less than 3/8 inch (10 1014.2 Height.Handrail height, measured above stair tread mm) to a level that is not less than 13/4 inches (45 mm) nosings,or finish surface of ramp slope,shall be uniform,not below the tallest portion of the profile. The width of the less than 34 inches (864 mm) and not more than 38 inches handrail above the recess shall be not less than 1'/,inches (965 mm). Handrail height of alternating tread devices and (32 mm) to not greater than 23/4 inches (70 mm). Edges ships ladders, measured above tread nosings, shall be uni- shall have a minimum radius of 0.01 inch(0.25 mm). 2015 INTERNATIONAL BUILDING CODE° 273