I'm looking for a UL assembly to provide a 2 hour rating for a pinched header on an exterior masonry load bearing wall. Only the interior needs to be rated. Can I use the UL # for a W shape beam?
Hello,
HILTI works to provide UL listed firestop systems or engineering judgements for firestop applications. This includes where an item penetrates a rated assembly, or where a joint needs to be sealed to extend the rating between two assemblies.
We cannot create judgements on assemblies themselves; as we do not design the assemblies or the products used to create these assemblies, we only focus on firestopping pre-approved assemblies to restore/extend the ratings based on firestopping test standards.
If the C12 channel is penetrating a rated assembly, we can look at creating an engineering judgement for that application.
However, if you are looking to have an assembly approved this is outside of HILTI's scope, and you would need to contact a gypsum manufacturer, 3rd party consultant, or AHJ for what assemblies may be used in your application.
If you do have any firestopping needs, don't hesitate to ask, and if the C12 channel is penetrating a rated assembly, you can fill out the attached request form and email it back to usfirestopeng@hilti.com.
Regards,
Dakota Reid
Fire Protection Engineering Team
