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SECTION PM-708.0 SHAFT ENCLOSURES: <br /> <br />PM-708.1 General: All floor openings connecting two or more stories shall be protected by shaft <br />enclosures as required by Section PM-708.2. <br /> <br />Exceptions: <br /> <br /> 1. Floor openings exempted by the provisions of Section 713.3 of the building code <br /> listed in Chap!er 8. <br /> <br /> 2. In buildings of Use Group B, stairs connecting not more than two stodes with less <br /> than 3,500 square feet of floor area per story. <br /> <br />3. In buildings of Use Group B, stairs connecting not more than more than three stories <br />provided the building is equipped throughout with an approved automatic sprinkler <br />system. <br />4. In buildings of Use Group E and R-l, stairs connecting not more than more than two <br />stories provided the building is equipped throughout with an approved automatic <br />sprinkler system. <br /> <br />5. In buildings of Use Groups F and S, stairs connecting not more than two stories. <br /> <br />6. In buildings of Use Group F and S, stairs connecting' not more than more than three <br />stories provided the building is equipped throughout with an approved automatic fire <br />suppression system. <br /> <br />7. In buildings of Use Group M, stairs connecting not more than two stodes with less <br />than 2000 square feet of floor area per story, or when connecting not more than more <br />than two stories provided the building is equipped throughout with an approved <br />automatic sprinkler system. <br /> <br />8. In buildings of Use Group R-2, stairs connecting not more than two stodes with not <br />more than four dwelling units per story. <br /> <br />9. In buildings of Use Group R-2, stairs connecting not more than more than three <br />stories with not more than four dwelling units per story provided the building is equipped <br />throughout with an approved automatic sprinkler system. <br /> <br />PM-708.2 Enclosure Rating: Enclosures connecting not more than six stories shall have a fire <br />resistance rating of not less than 1 hour with approved opening protectives. Opening protectives <br />shall not be required in buildings of three stories or less in height provided all the occupants of <br />each floor have access from each floor to an exit with a fire resistance rated enclosure with <br />approved opening protectives. Enclosures connecting more than six stodes shall have a fire <br />resistance rating of not less than 2 hours with approved opening protectives. <br /> <br /> Section 2. Nothing in this ordinance or in the Property Maintenance Code hereby adopted, shall be <br />construed to affect any suit or proceeding pending in any court, or any rights acquired or liability incurred, or <br />any cause or causes of action acquired or existing under any act or ordinance hereby repealed, as cited herein. <br /> <br /> Section 3. If any section, subsection, provision, sentence, clause or phrase of this ordinance is for any <br />reasons held to be unconstitutional or invalid, such decision shall not afteel the validity of the remaining <br />portions of this ordinance and the City Council of the City of University City hereby declares that it would have <br />passed the same, even though such portion so held to be unconstitutional had not been included herein and to <br />this end the provisions of this ordinance are hereby declared to be severable. <br /> <br />-17- <br /> <br /> <br />