1010 SE EVERETT MALL WAY AEROTEK 2021-11-02

• 410 MEANS OF EGRESS 1017.2 Limitations. Exit access travel distance shall not not currently address a building with an NFPA 13D exceed the values given in Table 1017.2. sprinkler system. ❖The table includes the travel distance measurements Note d addresses the sprinkler requirements in for buildings with or without sprinkler systems. "Not Group H. Group H occupancies are only required to Permitted" is in support of the Chapter 9 require- be sprinklered within Group H and not throughout the ments for all Group I and H occupancies to be sprin building; therefore, Note d distinguishes this require klered. While the other occupancies may also be ment from Notes b and c. The travel distance is the required to be sprinklered, the exit access travel dis- same if the path is through Group H or leaves Group tance is indicated for existing buildings. H and continues through a nonsprinklered occupancy (see Section 1018.2, Item 2.) TABLE 1017.2.See next column. ❖This table reflects the maximum distance a person is TABLE 1017.2 allowed to travel from any point in a building floor EXIT ACCESS TRAVEL DISTANCE' area to the nearest exit along a natural and unob- WITHOUT SPRINKLER WITH SPRINKLER structed path. While quantitative determinations or OCCUPANCY SYSTEM SYSTEM (feet) (feet) formulas are not available to substantiate the tabular A,E,F-1,M,R,S-1 200 250b distances, empirical factors are utilized to make rela- tive judgments as to reasonable limitations. Such I-1 Not Permitted 250b considerations include the nature and fitness of the B 200 300e occupants; the typical configuration within the space; F-2,S-2,U 300 400e the level of fire hazard with respect to the specific d uses of the facilities, including fire spread and the H-1 Not Permitted 75 potential intensity of a fire. The inclusion of an auto- H-2 Not Permitted 100d matic sprinkler system throughout the building can H-3 Not Permitted 150d serve to control, confine or possibly eliminate the fire H-4 Not Permitted 175d threat to the occupants so an increased travel dis- tance is permitted. Increased travel distances are H-5 Not Permitted 200e permitted when an automatic sprinkler system is I-2,1-3,1-4 Not Permitted 200e installed in accordance with NFPA 13 or 13R. When measuring travel distance, it is important to For SI: 1 foot=304.8 mm. consider the natural path of travel [see Commentary a. See the following sections for modifications to exit access travel distance requirements: Figure 1017.3(1)]. In many cases,the actual layout of Section 402.8:For the distance limitation in malls. furnishings and equipment is not known or is not Section 404.9:For the distance limitation through an atrium space. identified on the plans submitted with the permit Section 407.4:For the distance limitation in Group 1-2. application. In such instances, it may be necessary to Sections 408.6.1 and 408.8.1:For the distance limitations in Group I-3. measure travel distance usingthe legs of a triangle g g Section 411.4: For the distance limitation in special amusement instead of the hypotenuse [see Commentary Figure buildings. 1017.3(2)]. Since most people tend to migrate to Section 412.7: For the distance limitations in aircraft manufacturing more open spaces while egressing, measurement of facilities. the natural path of travel typically excludes floor Section 1006.2.2.2:For the distance limitation in refrigeration machinery areas within 1 foot (305 mm) of walls, corners, col- rooms. umns and other permanent construction. Where the Section 1006.2.2.3:For the distance limitation in refrigerated rooms and travel path includes passage through a doorway, the spaces. natural route is generally measured through the cen- Section 1006.3.2:For buildings with one exit. terline of the door openings. Section 1017.2.2:For increased distance limitation in Groups F-1 and S-1. The common path of travel addressed in Sections Section 1029.7:For increased limitation in assembly seating. 1006.2.1 and 1006.3.2 is part of the overall exit Section 3103.4:For temporary structures. access travel distance,with both starting at the same Section 3104.9:For pedestrian walkways. point. Common path of travel stops when the occu- b. Buildings equipped throughout with an automatic sprinkler system in pant has a choice of at least two exits, and overall accordance with Section 903.3.1.1 or 903.3.1.2. See Section 903 for travel distance stops when an occupant gets to the occupancies where automatic sprinkler systems are permitted in accordance with Section 903.3.1.2. closest exit. The references in Note a are to sections c. Buildings equipped throughout with an automatic sprinkler system in where specific requirements are addressed—this can accordance with Section 903.3.1.1. be an increase or decrease in travel distance. d.Group H occupancies equipped throughout with an automatic sprinkler Note a is a reference to other travel distance limita- system in accordance with Section 903.2.5.1. tions in the code.Notes b and c are simply references to the allowed types of sprinkler system—NFPA 13 or 1017.2.1 Exterior egress balcony increase. Exit access 13R. Some travel distance increases are based on travel distances specified in Table 1017.2 shall be increased the type of sprinkler system provided. 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