Frequently Asked Questions
Engineering judgements. What are they?
A specific drawing or group or drawings created by a firestop manufacturer for a customer for a specific firestop application on a job site.
Why do they exist?
No matter how many firestop tests are completed at UL/OPL, contractors seem to always encounter different ways of penetrating fire-rated assemblies. In order to provide the proper fire protection for an entire building, custom drawings are needed for these odd applications.
How are these drawings created?
Engineering judgments are based off of UL/OPL tested systems. These designs are created by a qualified technical personnel in accordance with the "Recommended International Firestop Council (IFC) Guidelines for Evaluating Firestop Systems Engineering Judgments" in mind.
