2HR Fire-Rated Infill of Existing Floor Sleeve

Hello,

Thank you for reaching out to the Hilti Fire Protection Design Team to assist you with your firestop engineering needs.

We do not have a listed system for multiple blank sleeves in a concrete slab; however, we can address your application through an Engineering Judgment, which will be a custom detail showing your exact application with the firestop components required to maintain the stated ratings.

Hilti is proud to announce the launch of our engineering website, the HILTI CONSTRUCTION PLATFORM (HCP). This platform will be the home for all of your Fire Protection Engineering needs, including Engineering Judgment requests. You can find more information on how to access this new platform here: https://www.hilti.com/ej (US) or https://www.hilti.ca/ej (Canada.)

If you have any questions, please reach out to our customer service team at 1-800-879-8000 (US) or 1-800-363-4458 (Canada) for assistance.

Thank you,

Zach Rezazadeh
Fire Protection Engineer