The referenced code sections seem to allow through penetrations of rated walls and horizontal assemblies without an approved firestop system provided that:
1) The penetrating items are steel, ferrous, or copper pipes, tubes, or conduits
and
2) "The material used to fill the annular space shall prevent the passage of flame and hot gases sufficient to ignite cotton waste when subjected to ASTM E119 or UL 263 time-temperature fire conditions under a minimum positive pressure differential of 0.01 inch (2.49 Pa) of water at the location of the penetration for the time period equivalent to the fire-resistance rating of the construction penetrated."
Is this Hilti's understanding as well, and do any Hilti products such as the FS-ONE MAX meet this requirement?
Hi Adam,
The code language referenced is an exception to firestopping using a prescribed methodology. To comply with the exception language, a test would need to be conducted with the criteria prescribed (ie ASTM E119 Time Temperature Curve) using cotton waste as a pass/fail criteria. This is legacy code language that pre-dates the test standards and the methodology is not used in the firestop industry. Hilti through-penetration firestop systems are tested and certified in accordance with ASTM E814 and/or UL1479 test standards as prescribed by the code.
Thank you,
Chase Hellan
Sr. Fire Protection Engineer