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2"x WD. STUDS PER PLAN 5/8" GYP. BOARD PAINT PER FINISH SCHED. CONT. BLOCKING WALL FINISH PER SCHED. 2"x WOOD CLNG. JOIST @ 16" O.C. CROSS TEES AT 24" O.C. MAIN RUNNERS AT 48" O.C. FIXTURES, SUPPORT PER NOTES, TYP. OPPOSITE FREE WALLS, NO GRID ATTACHMENT, 3/4" MIN. CLEAR 12 GA.HANGER WIRES AT 8" FROM ALL WALLS AT ALL MAIN RUNNERS AND CROSS TEES 12 GA. HANGER WIRES AT 4'-0" O.C. EACH WAY ALONG MAIN RUNNERS STRUT AT FREE WALLS 4 EA. 12 GA. SPLAY WIRES. PERIMETER STARTER WALLS, GRID ATTACHED TO (2) ADJACENT WALLS A B 6 A5.04 6 A5.04 12 A5.04 10 A5.04 8 A5.04 12 " M I N CLR 3/4" MIN 1/4" LENGTH OF END RUNNER WHICHEVER IS LEAST U. N . O WALL FINISH CONTINUES WHERE OCCURS 12 GA. HANGER WIRES, TYP. MIN. 3 TIGHT TURNS MAIN "T" RUNNERS AT 48" O.C. CROSS "T" AT 24" O.C. ACOUSTICAL LAY-IN PANEL POP RIVET PERIMETER ANGLE TO EA. TEE RUNNER INTERSECTION @ RESTRAINED WALLS WALL ANGLE ATTACHED TO WALL W/ #10 X 1-1/2"" WOOD SCREWS @ 16" O.C. OR 6d X 1-1/2" L. NAILS ON 16 O.C. 2X BLOCKING PER STRUCT. DRAWINGS RESTRAINED END PERIMETER STARTER WALLA C SECTION "T" RUNNER ACOUSTICAL LAY-IN PANEL 'V" STRUTT DRILL HOLE IN RUNNER & INSTALL 6d RING SHANK NAIL OR WITHIN 1/4" OF THE LENGTH OF END RUNNER WHICHEVER IS LESS WALL FINISH CONTINUES WHERE OCCURS 12 GA. HANGER WIRES, WITH TYP. MIN. 3 TIGHT TURNS IN 1-1/2" T-RUNNERS ACOUSTICAL LAY-IN PANEL WALL ANGLE ATTACHED TO WALL W/ #10 X 1-1/2"" WOOD SCREWS @ 16" O.C. OR 6d X 1-1/2" L. NAILS ON 16 O.C. 2X BLOCKING PER STRUCT. DRAWINGS B FREE END C INTERLOCK 'V' STRUTS OR HORIZ. 16" GA. TIE WIRE @ WALLS OPPOSITE POP RIVETED WALLS NOTE: 1. WHERE THE PERPENDICULAR DISTANCE FROM THE WALL TO THE FIRST PARALLEL MAIN RUNNER IS 8" OR LESS, THIS INTERLOCK IS NOT REQD. 2. NAILS @ THE END OF HORIZ. STRUTS ARE TO BE PLACED WITH NAIL HEAD TOWARD CENTERLINE OF SPAN OF STRUT. 8" MAX 8" MAX. U. N . O . 12 " M I N . 1/4" DIA. EYE-SCREW W/ 1-1/2" PENETRATION TYP. BRACING WIRE W/ 4 TIGHTS TURNS WITHIN 1-1/2" 3" MA X FOR BRACING WIRES FULLY EMBED EYE-SCREW SHANK IN DIRECTION OF WIRE W/ 4 TIGHT TURNS WITHIN 1-1/2", 1-1/2" PENETRATION INTO JOISTS 3" 2" MI N . WOOD JOIST OR RAFTER BOTTOM OF JOIST A B MAIN RUNNER ACOUSTICAL CEILING #12 TEKS HEX HEAD SELF DRILLING FASTENERS AT 18" O.C. STEEL STUD COMPRESSION STRUT, SEE SCHEDULE (2) #8 x 1-1/4" GALV. WOOD SCREWSREMOVE FLANGES AND BEND WEB HORIZONTAL 2X4 BLOCKING W/ (2) 16d NAILS AT EACH END ROOF FRAMING STEEL STUD COMPRESSION STRUT SCHEDULE LENGTH OF STRUT UP T0 2'-6" 2'-7" TO 4'-6" 4'-7" TO 9'-6" 9'-7" TO 16'-6" STRUT SIZE 18 GA, CEE STUDS W/ 1 5/8" FLANGES 2 1/2" CEE CEE METAL STUDS 2 1/2" CEE CEE METAL STUDS 4" CEE CEE METAL STUDS 4" CEE CEE METAL STUDS PROVIDE (4) SIMPSON A34. (2) ON EACH SIDE OF EACH END NOTE: 1. COMPRESSION STRUT SHALL NOT REPLACE HANGER WIRES STEEL "CEE" STUDS #12 TEKS HEX HEAD SELF DRILLING FASTENERS AT 18" O.C. 12 GA. VERTICAL HANGER WIRE @ 4'-0" EA. WAY (4'-0" O.C. @ MAIN RUNNER) MIN 3 TIGHT TURNS IN 3" BOTH ENDS OF WIRE, TYP. LATERAL FORCE BRACE ASSEMBLY SHALL BE 8' X 12' O.C. 45° MAX TYP. COMPRESSION STRUTS STEEL SECTION WITH L/R RATIO OF 200 MAX. ATTACH TO MAIN RUNNERS WITH 1/4" MACHIME-BOLT AND TO STRUCTURE WITH 3/16" DIAMETER ANCHOR AT CONCRETE / STEEL COMPRESSION STRUT SHALL NOT REPLACE HANGER WIRE (4)-12 GA. SPLAYED WIRES 90° APART HORIZONTALLY WITH MIN. 4 TIGHT TURNS IN 1-1/2" BOTH ENDS OF WIRE, TYP. WIRES SHOULD BE TAUT WITHOUT CAUSING THE CEILING TO LIFE NO SPLICES PERMITTED MAIN RUNNER CROSS RUNNER 2" MAX FROM BRACING WIRES TO CROSS RUNNERS & COMPRESSION STRUTT 10 A5.04 NOTE: FOR CONNECTIONS OF BRACING & HANGER WIRES THE STRUCTURE ABOVE, SEE DETAIL 11 A5.04 45.00°TYP 45° TYP MIN. (4) 12 GA. VERTICAL HANGER WIRES @ EA. LIGHT FIXTURE, AIR TERMINAL SERVICES OR ITEMS WEIGHING 56 lbs OR MORE ATTACH TO STRUCTURE ABOVE, SEE DETAIL 4 WIRES-12 GA. BRACING FOR FIXTURES, AIR TERMINALS, SERVICES OR ITEMS WEIGHING LESS THAN 56 lbs PER METAL SUSPENSION SYSTERMS FOR LAY-IN PANEL CEILINGS NOTE #6 1 #8 S.M.S. (TOTAL OF 2 SCREWS) IN OPPOSITE SIDES, LOCATE SCREWS NEAR THE CENTER OF TERMINAL OF FIXTURE 11 A5.04 Scale Project number Date Drawn by Jen Dunbar, AIA phone: 310.435.3928 12314 La Maida Street Valley Village, CA 91607 jen@dunbararchitecture.com DUNBAR ARCHITECTURE JD/AP As indicated 4/ 7 / 2 0 2 5 9 : 2 2 : 2 7 P M A5.04 CEILING DETAILS 23004 CYPRESS CENTER RESTORATION CITY OF SANTA ANA 1/17/2025 625 S. CYPRESS AVE. SANTA ANA, CA 92701 6" = 1'-0"A5.04 1 GYPSUM BOARD CEILING 1. SUSPENSION LAY-IN CEILING SHALL BE CONTRACTOR DESIGN/BUILD. 2. PROVIDE HANGER WIRES ALONG MAIN RUNNERS. PROVIDE HANGER WIRES AT THE ENDS OF ALL MAIN AND CROSS RUNNERS, AT THE PERIMETER OF THE CEILING AREA. 3. PROVIDE TRAPEZE OR OTHER SUPPLEMENTARY SUPPORT MEMBERS AT OBSTRUCTIONS TO MAIN HANGER SPACING. PROVIDE ADDITIONAL HANGERS, STRUTS OR BRACES AS REQUIRED AT ALL CEILING BREAKS, SOFFITS OR DISCONTINUOUS AREA. HANGER WIRES THAT ARE OUT OF PLUMB ARE TO HAVE COUNTER-SLOPING WIRES. 4. CEILING GRID MEMBERS MAY BE ATTACHED TO ADJACENT WALLS. CEILING GRID MEMBERS SHOULD BE AT LEAST 1/2" FREE OF OTHER WALLS. IF WALLS RUN DIAGONALLY TO CEILING GRID SYSTEM RUNNERS, ONE END OF MAIN AND CROSS RUNNERS SHOULD BE FREE AND A MINIMUM OF 1/2" CLEAR OF WALL. 5. AT THE PERIMETER OF THE CEILING AREA WHERE MAIN OR CROSS RUNNERS ARE NOT CONNECTED TO THE ADJACENT WALL, PROVIDE INTERCONNECTIONS BETWEEN THE RUNNERS AT THE FREE END TO PREVENT LATERAL SPREADING. A METAL STRUT OR A WIRE WITH A POSITIVE MECHANICAL CONNECTION TO THE RUNNER MAY BE USED. 6. PROVIDE SETS OF SPLAYED BRACING WIRES ORIENTED 90 DEGREES FROM EACH OTHER. PROVIDE BRACING WIRES AT LOCATIONS FROM EACH PERIMETER WALL AND AT THE EDGE OF VERTICAL CEILING OFFSETS. THE SLOPE OF THESE WIRES SHOULD NOT EXCEED 45 DEGREES FROM THE PLANE OF THE CEILING AND SHOULD BE TAUT WITHOUT CAUSING THE CEILING TO LIFT. SPLICES IN BRACING WIRES ARE NOT TO BE PERMITTED WITHOUT APPROVAL. 7. FASTEN HANGER AND BRACING WIRES, HANGER OR BRACING WIRE ANCHORS TO THE STRUCTURE SHOULD BE INSTALLED IN SUCH A MANNER THAT THE DIRECTION OF THE WIRE ALIGNS AS CLOSELY AS POSSIBLE WITH THE DIRECTION OF THE FORCES ACTING ON THE WIRE. 8. SEPARATE ALL CEILING BRACING WIRES FROM ALL UNBRACED DUCTS, PIPES, CONDUIT, ETC. IT IS ACCEPTABLE TO ATTACH LIGHTWEIGHT ITEMS, SUCH AS SINGLE ELECTRICAL CONDUIT. 9. WHEN DRILLED-IN CONCRETE ANCHORS ARE USED IN REINFORCED CONCRETE FOR HANGER WIRES, 1 OUT OF 10 MUST BE FIELD TESTED BY TESTING LABORATORY FOR 200 POUNDS OF TENSION. WHEN FILLED-IN CONCRETE ANCHORS ARE USED FOR BRACING WIRES, 1 OUT OF 2 MUST BE FIELD TESTED BY TESTING LABORATORY FOR 440 POUNDS IN TENSION. NO SHOT-IN ANCHORS ARE PERMITTED. 10. ATTACHED ALL LIGHT FIXTURES TO THE CEILING GRID SYSTEM POSITIVELY. ATTACHMENT DEVICE SHALL HAVE A CAPACITY OF 100 PERCENT OF THE LIGHTING FIXTURE WEIGHT ACTING IN ANY DIRECTION. 11. FLUSH OR RECESSED LIGHT FIXTURES AND AIR TERMINALS OR SERVICES WEIGHING LESS THAN 56 POUNDS MAY BE SUPPORTED DIRECTLY ON THE RUNNERS OF A HEAVY DUTY GRID SYSTEM BUT THEY MUST HAVE SAFETY WIRES ATTACHED TO THE FIXTURE AT DIAGONAL CORNERS AND ANCHORED TO THE STRUCTURE ABOVE. ALL 4 FT. X 4 FT. RECESSED LIGHT FIXTURES AND AIR TERMINALS OR SERVICES WEIGHING 56 POUNDS OR MORE MUST BE INDEPENDENTLY SUPPORTED BY WIRES EACH ATTACHED TO THE FIXTURE AND THE THE STRUCTURE ABOVE REGARDLESS OF THE TYPE OF CEILING GRID SYSTEM USED. THE WIRES INCLUDING THEIR ATTACHMENT TO THE STRUCTURE ABOVE MUST BE CAPABLE OF SUPPORTING 4 TIMES THE WEIGHT OF THE UNIT. 12. ALL FIXTURES AND AIR TERMINALS OR SERVICES SUPPORTED ON INTERMEDIATE DUTY GRID SYSTEMS MUST BE INDEPENDENTLY SUPPORTED BY WIRES EACH ATTACHED TO THE FIXTURE OR TERMINAL AND TO THE STRUCTURE ABOVE. 13. SUPPORT SURFACE MOUNTED LIGHT FIXTURES BY AT LEAST TWO POSITIVE DEVICES WHICH SURROUND THE CEILING RUNNER AND WHICH ARE EACH SUPPORTED FROM THE STRUCTURE ABOVE BY WIRE. SPRING CLIPS OR CLAMPS THAT CONNECT ONLY TO THE RUNNER ARE NOT ACCEPTABLE. PROVIDE ADDITIONAL SUPPORTS WHEN LIGHT FIXTURES ARE LONGER. 14. SUPPORT PENDANT MOUNTED LIGHT FIXTURES DIRECTLY FROM THE STRUCTURE ABOVE WITH HANGER WIRES OR CABLES PASSING THROUGH EACH PENDANT HANGER AND CAPABLE OF SUPPORTING 4 TIMES THE WEIGHT OF THE FIXTURE. SPECIAL DETAILS ARE NECESSARY FOR THIS CONDITION AT THE CEILING GRID. 15. THE WIDTH OF THE PERIMETER SUPPORTING CLOSURE SHALL NOT BE LESS THAN 2". IN EACH ORTHOGONAL HORIZONTAL DIRECTION, ONE END OF THE CEILING GRID SHALL BE ATTACHED TO THE CLOSURE ANGLE. THE OTHER END IN EACH HORIZONTAL DIRECTION SHALL HAVE A 0.75" CLEARANCE FROM THE WALL AND SHALL REST UPON AND BE FREE TO SLIDE ON A CLOSURE ANGLE. 16. FOR CEILING AREAS EXCEEDING 2,500 S.F., A SEISMIC SEPARATION JOINT OR FULL HEIGHT PARTITION THAT BREAKS THE CEILING UP IN TO AREAS NOT EXCEEDING 2,500 S.F. SHALL BE PROVIDED. EACH AREA SHALL BE PROVIDED WITH CLOSURE ANGLES. 17. EXCEPT WHERE RIGID BRACES ARE USED TO LIMIT LATERAL DEFLECTIONS, SPRINKLER HEADS AND OTHER PENETRATIONS, A 2" OVERSIZE RING, SLEEVE, OR ADAPTER THROUGH THE CEILING TILE SHALL BE USED TO ALLOW FOR FREE MOVEMENT OF AT LEAST 1" IN ALL HORIZONTAL DIRECTIONS. ALTERNATIVELY, A SWING JOINT THAT CAN ACCOMMODATE 1" OF CEILING MOVEMENT IN ALL HORIZONTAL DIRECTIONS IS PERMITTED TO BE PROVIDED AT THE TOP OF THE SPRINKLER HEAD EXTENSION. 18. LATERAL BRACING FOR SUSPENDED CEILING SHALL BE PROVIDED. WHERE CEILING IS NOT SUPPORTED BY INTERIOR PARTITIONS, CEILING BRACING SHALL BE PROVIDED BY FOUR NO. 12 GAUGE WIRES SECURED TO THE MAIN RUNNER WITHIN 2 INCHES ON THE CROSS RUNNER INTERSECTION AND SPLAYED 90 DEGREES FROM EACH OTHER AT AN ANGLE NOT EXCEEDING 45 DEGREES FROM THE PLANE OF THE CEILING. A STRUT FASTENED TO THE MAIN RUNNER SHALL BE EXTENDED TO AND FASTENED TO THE STRUCTURAL MEMBERS OF THE ROOF FLOOR ABOVE. THESE HORIZONTAL RESTRAINT POINTS SHALL BE PLACE 12 FEET O.C. IN BOTH DIRECTIONS WITH THE FIRST POINT WITHIN 6 FEET OF EACH WALL. ATTACHMENT OF RESTRAINT WIRES TO THE STRUCTURE ABOVE SHALL BE ADEQUATE FOR THE LOAD IMPOSED. SUSPENDED ACOUSTICAL CEILING NOTES 3/16" = 1'-0"A5.04 2 LAY-IN CEILING REQUIREMENTS 1 1/2" = 1'-0"A5.04 6 CEILING PERIMETER WALL ANGLES 3" = 1'-0"A5.04 11 WIRE TO WD. FRAMING CONN. 1 1/2" = 1'-0"A5.04 10 CEILING COMPRESSION STRUT 1/4" = 1'-0"A5.04 12 CEILING SPLAY BRACKING 1/4" = 1'-0"A5.04 8 FIXTURE SUPPORT No. Description Date 90% CD 5/14/2024 PERMIT SET 5/17/2024 OCFA SUBMITTAL 9/26/2024 BACKCHECK SET 1/17/2024 BACKCHECK SET_V2 4/8/2025