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8"X3 8" BENT PLATE, TWO PER LADDER, TYP. <br />3" <br />TYP. <br />3"X3 8" SIDE RAILS <br />OSHA COMPLIANT SERRATED LADDER RUNGS (TYP.) EQ. <br />SPACING AT 12" O.C., CENTERED ON SIDE RAILS <br />EXIST. DROP CEILING <br />EXIST. HARD CEILING <br />ROOF DECK <br />ROOF SYSTEM AND MEMBRANE <br />SEE DETAIL 12/3.0 FOR ROOF HATCH DETAIL <br />APPROX. 6', <br />FIELD VERIFY <br />APPROX. 9', <br />FIELD VERIFY <br />4" MIN. <br />12" MAX. <br />Ø 12" EPOXY ANCHOR, TYP. <br />UPPERMOST RUNG SHALL BE A MAX. OF 24" BELOW <br />UPPER EDGE OF ROOF HATCH <br />2'-6", <br />FIELD VERIFY <br />LADDER RUNGS SHALL BE A MINIMUM <br />OF 7" AWAY FROM WALL FACE <br />A <br />B <br />22 <br />6.0 <br />24" <br />EXIST. FLOOR <br />12" MAX. SPACING BETWEEN TOP RUNG OF LOWER <br />LADDER AND BOTTOM RUNG OF UPPER LADDER <br />NOTE: FIELD VERIFY HEIGHTS PRIOR TO FABRICATION OF LADDERS. <br />NEW 2X8 TREATED WOOD <br />FRAMING, FASTEN TO NEW <br />FRAMING WITH JOIST HANGERS <br />30" <br />36" <br />NEW 2X8 TREATED WOOD <br />FRAMING, FASTEN TO EXIST. <br />JOIST WITH JOIST HANGERS <br />EXIST. ROOF JOISTS, TYP. <br />EXIST. ROOF JOISTS TO REMAIN <br />EXIST. ROOF JOISTS TO REMAIN <br />NOTE: <br />1.CUT AND REMOVE EXISTING ROOF JOISTS TO INSTALL NEW FRAMING. <br />2.NEW ROOF HATCH AND DECKING OMITTED FOR CLARITY. <br />SECTION A - HATCH OPENING AND FRAMING <br />ROOF HATCH <br />ROUGH OPENING <br />30" <br />36" <br />EXIST. CEILING JOISTS, TYP. <br />EXIST. MASONRY WALL <br />NEW 2X8 TREATED WOOD FRAMING <br />FASTENED TO EXIST. CEILING JOIST <br />WITH JOIST HANGERS, TYP. <br />NEW 2X8 TREATED WOOD <br />BLOCKING FASTENED TO NEW <br />FRAMING WITH JOIST HANGERS <br />NEW 2X8 TREATED WOOD BLOCKING FASTENED TO NEW <br />FRAMING AND MASONRY WALL WITH JOIST HANGERS <br />EXIST. CEILING JOISTS TO REMAIN <br />NEW 5 8" THICK, <br />TYPE-X GYPSUM <br />NEW METAL STUDS FASTENED <br />TO WOOD FRAMING, NO <br />MORE THAN 24" O.C., TYP. <br />NEW FIRE-RATED <br />PANEL <br />7" MAX <br />NOTE: <br />1.CUT AND REMOVE EXISTING CEILING JOISTS TO INSTALL NEW FRAMING. <br />2.NEW LADDER OMITTED FOR CLARITY <br />SECTION B - CEILING OPENING FRAMING <br />EXIST. CEILING JOIST <br />NEW 2X8 TREATED WOOD FRAMING, BEYOND <br />NEW 2X8 TREATED WOOD FRAMING, TYP. <br />NEW METAL STUD, NO MORE THAN 24' O.C., TYP. <br />INSTALL TRACK AT BOTTOM <br />EXIST. GYPSUM CEILING. CUT AND <br />REMOVE AS NECESSARY TO INSTALL <br />METAL STUDS <br />WRAP METAL STUD WALL WITH 2 LAYERS OF 5 8" <br />THICK, TYPE-X GYPSUM BOARD, IF EXISTING <br />CEILING ONLY HAS ONE LAYER OF 5 8" GYPSUM, <br />ONLY ONE LAYER IS NECESSARY AT METAL <br />STUD WALL <br />FASTEN METAL STUD TO EXIST. CEILING JOISTS <br />WITH 1 4" HEX HEAD SELF-DRILLING, SELF-TAPPING <br />SCREWS, 2 FASTENERS PER STUD, TYP. <br />NEW FIRE-RATED UPWARD-OPENING <br />ACCESS PANEL, INSTALL TO AVOID <br />INTERFERENCE WITH UPPER LADDER <br />FASTEN PANEL FRAME TO NEW WOOD <br />FRAMING, MIN. 2 FASTENERS PER SIDE, TYP. <br />EXIST. DROP CEILING. REMOVE 4' X 4' <br />GRID AND REINSTALL AROUND NEW <br />OPENING <br />36" <br />NEW METAL STUD TRACK, TYP. <br />NEW METAL STUD TO <br />FASTEN EXIST. GYPSUM TO <br />No.REVISION By Date <br />DRAWN BY: <br />ENGINEER: <br />APPROVAL: <br />DATE: <br />PROJ.:SCALE: <br />DWG. NO. <br />6.0 <br />HMF <br />DCC <br />J2582DETAILS DCC/WRT <br />05/06/2022ORANGE COUNTY WHITTED BUILDING ROOF REPLACEMENTHILLSBOROUGH, NORTH CAROLINAORANGE COUNTY ASSET MANAGEMENT SERVICESENGINEERING, INC.AS SHOWN <br />BID DOCUMENTS <br />21 <br />6.0 <br />INTERIOR LADDER - FRONT VIEW <br />SCALE: 1" = 1'-0" <br />22 <br />6.0 <br />INTERIOR LADDER - CHASE DETAIL <br />SCALE: 1-1/2" = 1'-0" <br />DocuSign Envelope ID: 89558C18-938A-4BFF-B14A-A2214E8AA5DD