5610 WEST DR 2017-07-28 - Laserfiche WebLink

BUILDING PLANNING R309.4 Automatic garage door openers.Automatic garage (914 mm). The area of the window well shall allow the door openers,if provided,shall be listed and labeled in accor- emergency escape and rescue opening to be fully opened. dance with UL 325. Exception: The ladder or steps required by Section R309.5 Fire sprinklers.Private garages shall be protected by R310.2.3.1 shall be permitted to encroach not more fire sprinklers where the garage wall has been designed based than 6 inches (152 mm) into the required dimensions of on Table R302.1(2), Footnote a. Sprinklers in garages shall the window well. be connected to an automatic sprinkler system that complies R310.2.3.1 Ladder and steps. Window wells with a with Section P2904. Garage sprinklers shall be residential vertical depth greater than 44 inches (1118 mm) shall sprinklers or quick-response sprinklers,designed to provide a be equipped with a permanently affixed ladder or steps density of 0.05 gpm/fe. Garage doors shall not be considered usable with the window in the fully open position.Lad- obstructions with respect to sprinkler placement. ders or steps required by this section shall not be required to comply with Sections R311.7 and R311.8. SECTION R310 Ladders or rungs shall have an inside width of not less EMERGENCY ESCAPE AND RESCUE OPENINGS than 12 inches (305 mm), shall project not less than 3 inches (76 mm) from the wall and shall be spaced not R310.1 Emergency escape and rescue opening required. more than 18 inches (457 mm) on center vertically for Basements, habitable attics and every sleeping room shall the full height of the window well. have not less than one operable emergency escape and rescue R310.2.3.2 Drainage.Window wells shall be designed opening. Where basements contain one or more sleeping for proper drainage by connecting to, the building's rooms, an emergency escape and rescue opening shall be foundation drainage system required by Section R405.1 required in each sleeping room. Emergency escape and res- or by an approved alternative method. cue openings shall open directly into a public way, or to a yard or court that opens to a public way. Exception: A drainage system for window wells is Exception: Storm shelters and basements used only to not required where the foundation is on well-drained house mechanical equipment not exceeding a total floor soil or sand-gravel mixture soils in accordance with area of 200 square feet(18.58 m'). the United Soil Classification System,Group I Soils, as detailed in Table R405.1. R310.1.1 Operational constraints and opening control R310.2.4 Emergency escape and rescue openings under devices. Emergency escape and rescue openings shall be decks and porches. Emergency escape and rescue open- operational from the inside of the room without the use of ings shall be permitted to be installed under decks and keys,tools or special knowledge.Window opening control porches provided that the location of the deck allows the devices complying with ASTM F 2090 shall be permitted emergency escape and rescue openings to be fully opened for use on windows serving as a required emergency and provides a path not less than 36 inches (914 mm) in escape and rescue opening. height to a yard or court. R310.2 Emergency escape and rescue openings.Emergency R310.2.5 Replacement windows. Replacement windows escape and rescue openings shall have minimum dimensions installed in buildings meeting the scope of this code shall as specified in this section. be exempt from the maximum sill height requirements of R310.2.1 Minimum opening area. Emergency and Sections R310.1 and Sections R310.2.1 and R310.2.2,pro- escape rescue openings shall have a net clear opening of vided the replacement window meets the following condi- not less than 5.7 square feet (0.530 ml. The net clear tions: opening dimensions required by this section shall be 1. The replacement window is the manufacturer's larg- obtained by the normal operation of the emergency escape est standard size window that will fit within the and rescue opening from the inside. The net clear height existing frame or existing rough opening. The opening shall be not less than 24 inches (610 mm) and the replacement window is of the same operating style net clear width shall be not less than 20 inches (508 mm). as the existing window or a style that provides for an Exception: Grade floor or below grade openings shall equal or greater window opening area than the exist- have a net clear opening of not less than 5 square feet ing window. (0.465 m2). 2. The replacement window is not part of a change of R310.2.2 Window sill height. Where a window is pro- occupancy. vided as the emergency escape and rescue opening,it shall R310.3 Emergency escape and rescue doors.Where a door have a sill height of not more than 44 inches (1118 mm) is provided as the required emergency escape and rescue above the floor; where the sill height is below grade, it opening, it shall be permitted to be a side-hinged door or a shall be provided with a window well in accordance with slider.Where the opening is below the adjacent ground eleva- Section R310.2.3. tion,it shall be provided with a bulkhead enclosure. R310.2.3 Window wells. The horizontal area of the win- dow well shall be not less than 9 square feet(0.9 m2),with R310.3.1 Minimum door opening size. The minimum a horizontal projection and width of not less than 36 inches net clear height opening for any door that serves as an MM1INITMIUATIONIA1 PFCIIIFAITIAI rnnF'