#Fire escape window basement code
Replacement windows installed in buildings meeting the scope of this code shall be exempt from the maximum sill height requirements of Section R310.2.2 and the requirements of Section R310.2.1, provided that the replacement window meets the following conditions. R310.2.4 Emergency Escape And Rescue Openings Under Decks And Porches.Įmergency escape and rescue openings installed under decks and porches shall be fully openable and provide a path not less than 36 inches (914 mm) in height to a yard or court. Window wells shall be designed for proper drainage by connecting to the building’s foundation drainage system required by Section R405.1 or by an approved alternative method.Įxception: A drainage system for window wells is not required where the foundation is on well-drained soil or sand-gravel mixture soils in accordance with the United Soil Classification System, Group I Soils, as detailed in Table R405.1.
#Fire escape window basement full
Ladders or rungs shall have an inside width of not less than 12 inches (305 mm), shall project not less than 3 inches (76 mm) from the wall and shall be spaced not more than 18 inches (457 mm) on center vertically for the full height of the window well. Ladders or steps required by this section shall not be required to comply with Section R311.7. Window wells with a vertical depth greater than 44 inches (1118 mm) shall be equipped with a permanently affixed ladder or steps usable with the window in the fully open position. The area of the window well shall allow the emergency escape and rescue opening to be fully opened.Įxception: The ladder or steps required by Section R310.2.3.1 shall be permitted to encroach not more than 6 inches (152 mm) into the required dimensions of the window well. The horizontal area of the window well shall be not less than 9 square feet (0.9 m2), with a horizontal projection and width of not less than 36 inches (914 mm). Where a window is provided as the emergency escape and rescue opening, it shall have a sill height of not more than 44 inches (1118 mm) above the floor where the sill height is below grade, it shall be provided with a window well in accordance with Section R310.2.3. The net clear height of the opening shall be not less than 24 inches (610 mm) and the net clear width shall be not less than 20 inches (508 mm).Įxception: Grade floor openings or below-grade openings shall have a net clear opening area of not less than 5 square feet (0.465 m2). The net clear opening dimensions required by this section shall be obtained by the normal operation of the emergency escape and rescue opening from the inside. R310.2.1 Minimum Opening Area.Įmergency and escape rescue openings shall have a net clear opening of not less than 5.7 square feet (0.530 m2). R310.2 Emergency Escape And Rescue Openings.Įmergency escape and rescue openings shall have minimum dimensions as specified in this section. Window opening control devices on windows serving as a required emergency escape and rescue opening shall comply with ASTM F2090. R310.1.1 Operational Constraints And Opening Control Devices.Įmergency escape and rescue openings shall be operational from the inside of the room without the use of keys, tools or special knowledge. Two means of egress complying with Section R311. One means of egress complying with Section R311 and one emergency egress escape and rescue opening.
Where the dwelling or townhouse is equipped with an automatic sprinkler system installed in accordance with Section P2904, sleeping rooms in basements shall not be required to have emergency escape and rescue openings provided that the basement has one of the following: Emergency escape and rescue openings shall open directly into a public way, or to a yard or court that opens to a public wayĮxception: Storm shelters and basements used only to house mechanical equipment not exceeding a total floor area of 200 square feet (18.58 m2). Where basements contain one or more sleeping rooms, an emergency escape and rescue opening shall be required in each sleeping room. SECTION R310 – EMERGENCY ESCAPE AND RESCUE OPENINGS R310.1 Emergency Escape And Rescue Opening Required.īasements, habitable attics and every sleeping room shall have not less than one operable emergency escape and rescue opening.
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