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Can a wood member (truss or flr joist) pentrate a 1hr fire rated wall in a duplex?

Posted by Richard Coffronalmost 3 years ago
Can a wood member (truss or flr joist) pentrate a 1hr fire rated wall in a duplex?

2015 IRC 302.3 states that a seperation wall is to be 1 hr fire rated from foundation to underside of roof. It allows quite a bit of diffrent penetrations but nothinf is said about wood products. I have a duplex being built and am fairly new to the inspecting game and am looking for any clarification or advise.

firewall,wood-framed

1 Reply
Posted by Ryan Kolodetskyalmost 3 years ago
Hilti Verified

Greetings Richard,

Thank you for using ASK Hilti!

We do not have an off the shelf listed firestop system to be used for the wood member penetrations through the 1-hr. fire-rated gypsum wall. However, we can review this application for an Engineering Judgment (EJ) to accommodate the firestop application described in your inquiry. EJ's are custom details showing the exact application with the firestop components required to maintain the stated ratings.
We are proud to announce the launch of the
HILTI CONSTRUCTION PLATFORM (HCP), our company’s new engineering service website. This platform will be the home for all of your Fire Protection Design needs. Instead of emailing a PDF form for a request, the platform enables you to create new Engineering Judgment (EJ) requests, submit revisions to previously completed EJs or connect with an FPE on a question. HCP also enables you to track the status of your request.

You can find more information on how to access this new platform here: https://www.hilti.com/ej (US) or https://www.hilti.ca/ej (Canada.)  

For instructions on how to register along with how to navigate the new platform, please see the attached document.

If you have any questions or require assistance navigating the platform, please call Customer Service for help at 1-800-879-8000 (US) or 1-800-363-4458 (Canada.)

Thank you for choosing Hilti as your firestop experts!

Best Regards,
Ryan Kolodetsky
Fire Protection Engineering Team