Firestop penetration detail for wood truss through 1 hour fire barrier

[jackbweth]

We have a 1 hour fire barrier separating two occupancies with a couple offsets that cause perpendicular penetration of wood trusses through the fire barrier in the attic. we typically have received approval to fire caulk the penetration similar to a pipe or conduit, but there is no tested assembly. The building official is asking for a design reference or supporting information to show this approach is acceptable. Is anyone aware of an interpretation or commentary reelevant to this issue.

Thanks.

 

[cda]

ask your fire stop supplier unless it is home depot

or call the number on the tube for tech help