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Most engineering judgments are a result of inadequate planning relating to the configuration of penetrations in fire-related construction

In the new construction market, the need for an engineering judgment in place of a UL-classified firestop system should be a very limited occurrence. Proper upfront planning and coordination of trades is a necessary component to a quality firestop installation process. However, situations do occur where configurations of penetrating items fall outside the parameters of existing systems. Review the industry-recommended guidelines for evaluating engineering judgments.

The question is often asked: Is an engineering judgment code compliant?

The provisions of the international building code are not to prevent the installation of any material or to prohibit any design method not specifically prescribed. An alternative material, design or method of construction shall be approved where the building official finds that the proposed design is satisfactory and complies with the intent of the code. This is known as an alternative method and an engineering judgment may be found to be acceptable to the building official as acceptable. Review 104.11 Alternative materials, design and methods of construction and equipment

Just download and fill out this form, email or fax it directly to us and we will provide an engineering judgment as a basis for an alternative method. Hamilton Benchmark has the capacity to have a judgment reviewed by a licensed professional engineer.

Download the Request Form (pdf 24kb).

Disclaimer: Engineering judgments should not be used in lieu of tested systems when available, and should be issued only by a firestop manufacturer’s qualified technical personnel or in concert with the manufacturer, by a registered Professional Engineer or independent testing agency that provides listing services for firestop systems.

  • Review the industry-recommended guidelines for evaluating firestop systems in engineering judgments (32kb pdf).
  • Review the industry-recommended guidelines for perimeter fire barrier systems (32kb pdf).