I have a new structure in Boulder at CU where i framed the walls and roof joists connecting to them. There is a callout to follow UL 419 for a couple rated walls and i am not sure how to properly fire rate when the deck above carries no rating.
Greetings Audrey,
Thank you for using ASK Hilti!
It sounds like you have a ASTM E 2837 situation here. If you could submit for an engineering judgement
through www.hilti.com/EJ We would be happy to provide you with a solution that fits your needs. We currently have
one listed system (CJD-0004) that could possibly fit your case. If not, we would be happy to get you a solution with your firestop product of choice depending on your conditions.
If you have any questions firestop related, please reach out to our customer service team at 1-800-879-8000 (US) or
1-800-363-4458 (Canada) and ask to speak to the firestop team for assistance. We would be happy to walk you through the details of any firestopping Hilti UL/cUL listed systems you needed.
Thank you for choosing Hilti as your firestop experts!
Best Regards,
Austin Griffith
Fire Protection Engineering Team