2522 RUCKER AVE 2018-01-01 MF Import

Either one of these buildings would be required to have complete exiting systems in place, in this case; two exits at oach floor as required in Section 1003.1. These buildings share the exiting system, however, by the use of horizontal exits, which provides the concept of exiting 'rom one building to another to be employed. Horizontal exiu are therefore not solely derived from requiroments based oa occupant load, quantiry of ezits and travel distance,but also on the actual arrangement of ezits themselves. As access to each building's ezidng system is only provided through the azea separation walls, ti�e area sepazation walls are chen also horizontal exits. Based on these observations,the comments below should be addressed. ! I 1. A horizontal ezit st�ould not serve as the only exit from a portion of a building per I Section 1008.1. Exiting from units B, F, I and J on the south side of the `alley' building do not comply. 2. The Garden Deck and Unic A types below are accessed through pedestrian walkways. Pedestrian walkways confomung to the requirements of a horizonta! exit may be used as a required exit per ihe exception to Secuon 409.7, however a horizontal exit should not serve as the only ezit from a pottion of a bailding. Section 1008.1 3. Dischazge areas should be provided. The capacity shall be detemuned by allowing 3 square feet of net clear floor area for each occupant to be accommodated, not including areas of stairs,elevators, dwelling units, or other shafts or courts. Based on the current occupant load of Floor 6•, each exit is required to serve az� occupant load of 36. The minimum size of dischazge area on each side of both azea separadon walls should be shown as 108 square faet. Section 1008.3. •Note that this is based on the aquirements of Section 1002 and includes the Garden Deck occupant load of 49. As floocs have different occupant loads, the discharge areas should be based on the occupant load served by each floor. Area Separatlon Walls 1. An area separation wall (ASW) must be a complete wall from foundation to parapet, and not from floor to floor as stated by note on Detail 8/A73. It should be designed so that a failure on one side of the ASW will not result in the failure effecdng the ASW, or structure on the opposite side of the ASW. Section 504.6.1 2. UL Design No. U435 is specifically stated to be a nonbearing wall. Calculadons should be provided which show thai assembly's ability to carry its own weight, plus superimposed weight, for the 6 stnr_� of wall construction or an approved bearing wall assembly should be provided. Sr ction 504.6.1 6