How would someone go about fire stopping this drywall is about 5 inches away from pull box and 2 sets of 4 inch electrical pipe that has to be fir stopped and there’s no way to get access to it to fit the caulking gun or put hand in between the pipes
Greetings Jovanni. Thank you for checking out ASK Hilti! This is a very difficult firestop application due to the access issues you have mentioned. Of course, we will need access to the penetrations to install firestop material to achieve a F-rating. However, this may not be feasible with no access to do so. I would suggest attempting to install firestop system WL1408, WL1297, or WL8079 when access is achieved. These systems can be found utilizing our Hilti firestop selector.
https://www.hilti.com/content/hilti/W1/US/en/business/business/engineering/fire-protection/firestop-selector.html
If none of these firestop systems meet you needs, we could look into creating a EJ for you, but access to the penetrations will still be required.
If need be, 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
