We would like to use the HI/BPF 120-11 detail or similar with a 4" slab instead of a 6" slab as outlined in the assembly description. The condition we have only requires a 1-hour rated assembly.
Is there a design # or UL listing for a 1-hour rated floor to ceiling curtain wall firestop assembly with 4" slab?
Hello,
Thank you for reaching out to the Hilti Fire Protection Design Team to assist you with your firestop engineering needs.
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: hilti.com/ej (US) or hilti.ca/ej (Canada.)
Fire Protection Design Team
Hilti North America
3701 W. Royal Lane, Suite 100, Irving, TX 75063
P 1-800-879-8000
E usfirestopeng@hilti.com
www.us.hilti.com/firestop