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Firestop Selection Basics
Let's Talk Cabling!
We replay a practical guide to firestop selection and explain why the right choice starts with the barrier, the penetration, and the tested UL system. We break down mechanical and non-mechanical firestop systems so you can seal penetrations correctly, support future cable adds, and avoid costly code violations.
• four selection factors: assembly type, barrier construction, penetrants, sealing method to restore rating
• mechanical firestop systems for vibration and shock tolerance
• cable transit systems and how inserts compress around cables
• fire-rated pathways for easy moves adds and changes
• factory fabricated sleeves, bushings, mineral wool, and AHJ approval
• non-mechanical options: putty, firestop caulk, cementitious materials, pillows, bricks, blankets
• firestop properties: intumescent expansion, endothermic heat absorption, ablative char formation
• why grout and plaster crack and fail as firestopping
• membrane penetrations versus through penetrations with real examples
• annular space limits and why too much or too little material fails
• seven jobsite tips: follow UL drawings, never mix materials, label and document, watch curing hazards and fumes
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Knowledge is power! Make sure to stop by the webpage to buy me a cup of coffee or support the show at https://linktr.ee/letstalkcabling . Also if you would like to be a guest on the show or have a topic for discussion send me an email at chuck@letstalkcabling.com
Chuck Bowser RCDD TECH
#CBRCDD #RCDD
