Product Technical Guides : US-EN Firestop Systems Guide For Specifiers | Page 698

ENGINEERING JUDGMENT PROCESS Hilti has performed extensive testing in both through-penetration and construction joint applications. However, due to variations in construction throughout the phases of a project, it is not possible to test every application that may be encountered. For these situations, Hilti has developed a process for creating custom drawings to accommodate particular applications. Hilti custom drawings, or Engineering Judgments, are developed through the careful and restricted application of accepted fire Hilti Firestop Saving lives through innovation and education 696 protection engineering principles and guidelines set forth by the IFC. Test data of like systems are analyzed and applied toward similar applications that do not exactly meet the criteria of a current UL Listed System. If the systems listed in this guide do not accommodate a particular application, please photocopy, complete, and submit the appropriate form(s) to request an Engineering Judgment on the following page. Once received, the requested information will be evaluated and an Engineering Judgment will be created, if possible. Completed form(s) can be emailed to [email protected]. Additional forms can be requested by calling 1-800-879-8000 or by visiting www.us.hilti.com/firestop.