SynC · Topic

Firestopping

Sealing of penetrations to maintain fire-resistance ratings of assemblies.

Standards2

These are the standards in SynC Standards that cover Firestopping. Each one is a complete, plain-language specification: the scope it applies to, the requirements that govern it, and a structured equipment datasheet listing the values a project has to decide, with the standards each is verified against. All of it is written and maintained by SynC, free to read without an account, and published under CC BY 4.0.

A standard usually carries several topics, so most of the entries below also appear under neighbouring subjects. The topics each one carries are listed on its own page.

Standards

  • Firestopping

    Through-penetration firestop systems and fire-resistive joint systems installed in fire-resistance-rated walls, floors, floor-ceiling assemblies, roof-ceiling assemblies, and smoke barriers in commercial, institutional, healthcare, and multi-family construction. Covers tested and listed systems for mechanical, electrical, plumbing, and communications penetrations, head-of-wall and bottom-of-wall joints, wall-to-wall joints, floor-to-floor joints, and floor-to-wall joints. Includes sealants, intumescent and endothermic products, mortars, mineral wool packing, collars, wrap strips, putty pads, composite sheets, and pillow systems. Addresses F, T, L, and W ratings; joint movement classes; identification labeling; installer qualification; field inspection per ASTM E2174 and ASTM E2393.

  • Louvers and Dampers

    Stationary exterior and interior louvers and the full range of air-control and life-safety dampers in commercial, institutional, and light-industrial buildings. Covers drainable-blade, storm-resistant (wind-driven-rain), sand-trap, acoustic, combination louver/damper, and penthouse/gooseneck louvers selected by free area and water-penetration class at the design intake velocity; air-control dampers (parallel- and opposed-blade) selected by AMCA 500-D leakage class; backdraft, gravity, and pressure-relief dampers; and the life-safety dampers required at rated barriers — fire dampers (UL 555), smoke dampers (UL 555S), combination fire/smoke dampers, and ceiling radiation dampers (UL 555C) — together with actuators, fusible and resettable links, sleeves, retaining angles, access, and the firestopping interface. Includes hurricane-zone (AMCA 540 / 550) and Florida/High-Velocity-Hurricane-Zone louver requirements and the AMCA Certified Ratings Program basis for ratings.

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