Roof drains and overflow drains are installed with cast iron bodies and clamp rings per plumbing drawings, integrated into the roofing system with a shaped cant strip and a depressed area at the drain. A water dam is positioned at the overflow drain, and continuous caulk is applied at the perimeter. The assembly discharges into a roof/overflow spillway onto pavement per civil drawings adjacent to a concrete tilt-up panel.
AND OVERFLOW CAST IRON DRAIN W/ CLAMP RING - PER PLUMBING DRAWINGS ROOFING SYSTEM - PER ROOF PLAN SHAPED CANT STRIP DEPRESSED AREA AT DRAIN AND OVERFLOW WATER DAM AT OVERFLOW DRAIN CAST IRON DRAIN W/ CLAMP RING - PER PLUMBING DRAWINGS 2' - 0" 4' - 0" 1' - 0" 2' - 0" 1' - 0" 11 A520 NOTE: VERIFY EXACT LAYOUT PER MECHANICAL, PLUMBING AND ELECTRICAL DWGS. PRIOR TO INSTALLATION PIPE SUPPORT MODEL BY MIRO INDUSTRIES UNLESS OTHERWISE SPECIFIED, SPACING NOT TO EXCEED 10' O.C. CLAMP O/ GAS PIPING/ ELECTRICAL CONDUIT MECHANICALL FASTENED TO SUPPORT ADHERE/ ANCHOR TO ROOF SURFACE PER ROOF MFR'S RECOMMENDATIONS FRONT VIEW SIDE VIEW PLAN VIEW 6" SQUARE *NOTE: PROVIDE BLOCKOUT 1" LARGER IN DIAMETER THAN DRAIN LINE, SEAL & BACKER ROD AROUND FULL PERIMETER OF PENETRATION PROVIDE CONT. CAULK AT PERIMETER ROOF/OVERFLOW TO SPILL ONTO PAVEMENT PER CIVIL DWGS. FINISH GRADE PER CIVIL DWGS. ANCHOR RAIN LEADER W/ UNISTRUT HANGER PER PLUMBING DWGS. CONC. FLOOR SLAB PER STRUCT. DWGS. CONC. TILT-UP PANEL PER STRUCT. DWGS. CONCRETE TILT-UP PANEL PER STRUCT. DWGS. 8 " VARIES - VERIFY WITH ROOF PLAN 2-1/2" x 3/8" STL. SIDERAIL 1' - 0" 7" 18" LONG x 3/4" O.C. RUNG WELD TO RAIL. 1ST RUNG 12" MAX. ABOVE FLOOR CONCRETE TILT-UP PANEL 2-1/2" x 3/8" MIN. STEEL BAR LADDER SIDE RAIL BRACKET 4'-0" MAX. BETWEEN SUPPORTS 1' - 0" SLAB ON GRADE PER STRUCTURAL DRAWINGS 4'-0" 1 1/2" = 1'-0" 11 ROOF AND OVERFLOW DRAIN 1" = 1'-0" 8 ROOF DRAIN AND OVERFLOW DRAIN 1 1/2" = 1'-0" 15 VENT PIPE PENETRATION 3" = 1'-0" 16 ROOF PIPE SUPPORT STANDOFFS 1 1/2" = 1'-0" 12 ROOF / OVERFLOW DRAIN TO PAVEMENT 1 1/2" = 1'-0" 20 ROOF ACCESS LADDER 1 1/2" = 1'-0" 19 ROOF ACCESS LADDER @ INTERMEDIATE LANDING
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