

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The 3M 7100011414 is a one-part intumescent composite sheet engineered to firestop blank openings and large penetrations in rated construction assemblies, including cable trays, conduit runs, and HVAC ductwork. When installed in tested and listed systems, it provides up to 4-hour fire protection and helps prevent the spread of fire, smoke, and noxious gases through floor and wall assemblies. The sheet is lightweight and thin, making it straightforward to handle on the job site. It is cut to size, fitted to the opening, and fastened with self-tapping screws or anchor bolts using a standard drill. Licensed contractors and firestop specialty installers are the primary trade professionals for this product.
This composite sheet is suited for commercial and residential rated construction where penetrations must be sealed to maintain the fire-resistance rating of the assembly. Typical applications include cable tray penetrations, conduit bundles, and HVAC ductwork passing through fire-rated floors, walls, and ceilings. The intumescent material expands under heat to seal the opening, maintaining the integrity of the rated assembly. It is particularly useful in larger openings where wrap strips or caulk alone are not practical.
Designed for use in tested and listed firestop systems protecting blank openings and large penetrations such as cable trays, conduit, and HVAC ductwork through fire-rated wall and floor assemblies. Consult the applicable system listing for confirmed construction assembly compatibility.
Installation should be performed by a qualified firestop installer or licensed contractor familiar with the applicable tested and listed system requirements. Power down or de-energize any electrical systems in the work area before cutting or fastening near conduit or cable trays. Fasten the sheet using a drill with self-tapping screws or anchor bolts as specified by the listed system design. Reference the IBC and applicable local fire codes to confirm the correct system number and assembly requirements before installation.
Thanks for subscribing!
This email has been registered!