A Contractor’s Guide to Effective Firestopping | EC&M
https://www.ecmweb.com/safety/fire-security/article/21143094/a-contractors-guide-to-effective-firestopping
WEBOct 9, 2020 · Insulative foil-encapsulated firestop products act as a barrier against heat and fire, helping to protect air, chemical, and grease ducts by wrapping completely around them. Endothermic fire-stopping protects through-penetrations, electrical cable trays, structural steel, and emergency circuitry.
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