Text on the drawing
PIPE, DUCT, OR CONDUIT SEALED AIRTIGHT USING ACOUSTICAL SEALANT. NON-HARDENING FIRE-SAFING IS EQUIVALENT, WHERE REQUIRED FOAM BACKER ROD AS REQUIRED FOR DUCT PENETRATIONS STRUCTURAL FLOOR DECK 1" SAFING, BATT INSULATION PERIMETER GAP (1/2" GAP PREFERRED). THERE SHALL BE NO DIRECT CONTACT BETWEEN THE PENETRATING ELEMENT AND THE STRUCTURE. NO SCALE 5 PIPE, DUCT, OR CONDUIT PENETRATION
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