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Page 2 <br /> 1lqthstdr Apartm�.n[5 <br /> DKembcr l4,2010 <br /> or without the 3-hour horizontal separation belween the wood and concrete portions of <br /> the structure. <br /> 5. Construction: Various building eiements will be required to comply with the fire- <br /> resistive reting requirements of Table 601 & 602 of the IBC. For type V-A constr�xtion, <br /> one-hour construction is req�ired for roof/ceiling and floor/ceiling as well as interior <br /> load-bearing wall assemblies. Unit demising walls are required to be rated per Section <br /> 420.2 of lhe IBC. Corridor walls are governed by Section 1018.1. ShaR walls are <br /> governed by Section 707 and may be one or two-hour fire rated constructien. <br /> 6. Ceiling construction: The Floor/ceiling assemblies were previously one-hour <br /> construction with a proprietary listing utilizing Fire Code C wallboard. If a one-layer <br /> assembly is desired to be provided in the areas permitted to be of one-hour <br /> construction, a similar listing will need to be prcvided again. <br /> 7. Internal Stair Enclosures: Internal stair enclosures that penetrate more than two- <br /> adjacent floors will be required to be of minimum two-hour fire resistant construction <br /> per current code and the applicable code the structure was constructed under. <br /> Handrails are required to comply with section 1012 IBC and must be shown on both <br /> sides of stairways. <br /> 8. Exterior guards and stairs: The 2009 IFC Section 4604.6.requires guards to be of <br /> minimum 4Z" in he�ght and have openings less than 6". Section 3408.1 discusses the <br /> requirements for cYiange of occupancy a�d leaves the specific requirements to the <br /> jurisdiction for interpretation. To the greatest extent possible, the exterior stairs should <br /> therefore be made to comply with current codes as the stairs are a required means of <br /> egress and are currently in need of repair. <br /> 9. Penetrations of fire-rated assemblies: Penetrations of fire-rated assemblies are <br /> governed by Section 713 of the IBC. Generally, penetrations such as can lights are not <br /> permitted without additional methods of protection such as drop soffits or fire-resistive <br /> boxes constructed around the can lights. <br /> I hope that this addresses the questions presented. In order for me to provide accurate, <br /> definitive answers I wiil need additional information as previousiy stated (the best way is by a <br /> complet^ review of the plans). If you have any further concerns please forward them at your <br /> earliest convenience, <br /> i <br /> Sincerely, <br /> �f� <br /> _.✓ <br /> , �� ��� <br /> Tony Lee <br /> Permit Services Manager <br /> ulathy�Le/RorID:ldr A{qrtments �� <br />