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Wood Floor To CMU Wall Firestop Joint

Posted by Allanover 4 years ago
Wood Floor To CMU Wall Firestop Joint

I am working on an existing building renovation where we have a 2x12 framed floor that intersects into an exterior CMU wall. When the flooring and drywall were removed it revealed a gap between the floor sheathing and the block wall (gap being anywhere from 0-3" wide). The code inspector is looking for a UL rated Joint system but I cannot seem to find one for a wood floor. The solution would have to installed from the floor, there is no access from the ceiling below. Required rating is one hour min.

1 hour firestop,joint system

1 Reply
Posted by JESSICA STARKSover 4 years ago
Hilti Verified

Allan,

We definitely can provide a solution for this application so long as the floor/ceiling assembly is rated; however, we do not have a UL system so you will need to request for 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

engineering judgment,floor to wall