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i am looking for a detail / assembly for filling a gap in a 3hour CMU fire wall.

Posted by FLINT SACKETTalmost 4 years ago
i am looking for a detail / assembly for filling a gap in a 3hour CMU fire wall.

i have a 3 hour CMU fire wall with a 3 hour rated door opening. however, the door frame is 2" shorter than the masonry opening, leaving a 2" gap in the wall. is there a fire safeing assembly for filling this gap with mineral wool and coating it? (gap = 2" tall x 8" deep x 8'-4" wide)
surely this isnt the first time a mason made an opening too big.

firestop material,gap fill

1 Reply
Posted by Tyler Thomasover 3 years ago
Hilti Verified

Hello!

My name is Tyler and I work with Fire Protection Engineering Department here at Hilti. I can confirm we do not have a system to address this application but it can certainly be addressed in an engineering judgment. If you would like an engineering judgment to address your application. Please see the information below:

We can address your application through an Engineering Judgment which will be a custom detail showing your 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: http://www.hilti.com/ej (US) or http://www.hilti.ca/ej (Canada.) 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.)
 
Along with HCP, Hilti is excited to announce our new mobile app for all your firestop needs: Hilti Firestop Selector. Using the Firestop Selector app gives you easy access to the Hilti Fire Protection Design Team from the jobsite, on the road, or in the office to request a new EJ, an EJ Revision, or a Question anytime, anywhere. You can download the app using the appropriate link below.

Hilti Firestop Selector App – Google Play Store

Hilti Firestop Selector App – Apple App Store

If you have any questions, please reach out to our customer service team at 1-800-879-8000 (US) or 1-800-363-4458 (Canada) for assistance.
 
Best regards,
 
Fire Protection Design Team
Hilti North America