How to protect the underside of a stainless steel floor sink (similar to a floor drain) installed in a min. 4" concrete slab over metal decking fire rated for 2-hour? The floor sink is connected to stainless steel piping.
Would detail The F-A-1137 for cast iron floor drain work with stainless steel floor sink?
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 of F-A-1137 with stainless steel piping instead of cast iron listed on F-A-1137 through an Engineering Judgment which will be a custom detail showing your exact application with the firestop components required to maintain the stated ratings.
To officially submit for Engineering Judgment please go to www.hilti.com/ej
Regards,
Jaeger Cox