Cable Tray Penetrating 2-hour precast wall

Posted by Crystal Holowellover 2 years ago

When cable tray is penetrating a 2-hour precast wall, can the opening be infilled with studs and 2 layers of Type X drywall both sides and fire caulked? Does a tested assembly like this exist? I haven't run across it yet.

precast wall panel,cable trays,2 hour drywall rated wall,2-hour wall

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