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I ' <br /> ' �IRE/LIFE SAFETY REPORT S41915 - Page 6 <br /> ' PRO\/IDENCE EVERETT MEDICAL CENTER February 05, 2008 <br /> NEW TUWER EXPANSION <br /> � <br /> 1. T;�ble 2 summarizes Opening Protection Requirements Based <br /> � on IBC Tables 715.3 and 715.4 <br /> Table 2 - Openinq Protection Requirements <br /> ' -.__ _ -.��.�--_-� --�--�-r-� <br /> � Minimum <br /> Assembly <br /> � Type of Assembly Rating Minimum Door Window <br /> ' �� (Hours) Rating (Hours) Rating <br /> _ � _ _�Hours) <br /> ' Fire Barrier = - _ - -- - -2 -1Yz NP <br /> 1 '/� '/ <br /> Fire Barriers which serve as; Shafts, exit 2 �+�, NP <br /> ' enclosures, exit passagewa� s — <br /> Smoke Partition Corridor Walis 0 0 0 <br /> Exterior Wall 2 1 % 1 '/z <br /> � 1 ,/ �/ <br /> Smoke Barrier � 1/3 1/3 <br /> ' 2. Exterior wall openings-As the building will be provided with <br /> � sprinklers the allowable percentage of unprotected openings is <br /> the sarr�e as the percentage of protected openings. The total <br /> allowable area of unprotected openings in an 2xterior wall is <br /> � based on the overall area of the wall itself per floor. Table 3 <br /> summarizes the allowable area of the openings as a percentage <br /> of the wall area per floor. <br /> � Table 3 - Allowable Exterior Openinqs <br /> ' Fire Separation Distance Percentage of Allowable Unprotected � <br /> O enings Per Area of Exterior Wall�j <br /> 0-3 ft. None Permitted � <br /> ' 3-5 ft. 15% <br /> I 5-10 ft. _ 25% <br /> 10-15 ft. 45% <br /> ' 15-20 it. 75% <br /> Greater than 20 ft. No Limit <br /> ' 3. Based on the current desigri the percentage of allowable <br /> unprotected openings is unlimited. <br /> ' <br /> � <br />