3M 7100139139 Fire Barrier Composite Sheet 16x28 in

Product Description

The 3M 7100139139 is a one-part intumescent composite sheet engineered to firestop blank openings and large penetrations through fire-rated construction assemblies. Measuring 16 inches x 28 inches, the sheet is designed to stop the spread of fire, smoke, and noxious gases through openings that accommodate cable trays, conduit bundles, and HVAC ductwork. When installed in tested and listed systems, it delivers up to 4-hour fire protection. The lightweight, thin-profile design makes handling straightforward for fire protection contractors and trade professionals working in commercial or institutional structures.

This composite sheet is suited for through-penetration firestop applications in walls and floor assemblies rated for fire resistance. Typical install scenarios include large conduit bundles, cable tray penetrations, and HVAC duct openings in rated construction. The sheet is cut to shape on site using common trade tools, then fastened with self-tapping screws or anchor bolts using a standard drill. It meets current International Building Code requirements and other life safety code standards applicable to through-penetration firestop systems.

Key Features

• Up to 4-hour fire protection rating in tested and listed systems
• Intumescent one-part composite construction expands under heat to seal openings
• Covers blank openings and large penetrations including cable trays, conduit, and HVAC ductwork
• Cut-to-fit design installs with a drill and self-tapping screws or anchor bolts
• Meets International Building Code and key life safety code requirements
• Lightweight profile simplifies handling and positioning in tight spaces

Compatibility

Designed for through-penetration firestop applications in fire-rated wall and floor assemblies where blank openings or large penetrations such as cable trays, conduit groups, and HVAC ductwork require code-compliant fire protection.

Installation Notes

Installation should be performed by a qualified fire protection contractor or licensed trade professional familiar with through-penetration firestop systems and applicable building codes. De-energize electrical systems and shut off any HVAC or mechanical services running through the penetration before beginning work. Cut the sheet to the required dimensions using standard trade cutting tools, position over the opening, and secure with self-tapping screws or anchor bolts. Verify the installed assembly matches a tested and listed system configuration to maintain the fire rating.

Technical Specifications

• Sheet Dimensions: 16 inches x 28 inches
• Fire Protection Rating: Up to 4 hours (in tested and listed systems)
• Weight: 10.6 pounds
• System Type: One-part intumescent composite
• Code Compliance: International Building Code
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100139139