A metallic pipe or conduit passes through an opening in a fire-rated concrete floor slab. The annular space is sealed with damming material and finished with 3M Fire Barrier CP 25 caulk to achieve a three-hour fire rating under UL System CAJ1001.
UL SYSTEM #CAJ1001 3 HOUR RATING DAMMING MATERIAL FIRE-RATED CONCRETE FLOOR SLAB METALLIC PIPE OR CONDUIT 3M FIRE BARRIER CP 25 CAULK
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