A continuous twenty-gauge bent plate attached with quarter-inch screws spaced at twelve inches on center frames around a roof penetration. Continuous L3x3x3/8 angles are provided with bolts at five feet on center typically, alongside typical 3/16 welds at truss and beam intersections. Draft curtains are trimmed around penetrations with firestopping installed in deck flutes and gaps as specified. Framing members including trusses and beams are positioned per plan relative to the grid centerline.
1'-0" TRUSS PER PLAN BM PER PLAN TYP CONT L3X3X3/8 TYP L3X3X3/8 W/ BOLT AT 5'-0" OC TYP TRIM DRAFT CURTAIN AROUND PENETRATIONS PROVIDE FIRESTOPPING IN FLUTES/GAPS TYP SEE ARCH DWG A-314 FOR ADDL INFO CONT 20 GA BENT PL W/ 1/4" SCREWS AT 12" OC TYP 8" 8" 3/16 TYP GRID BM CL 1'-0"
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