Some key points to keep in mind while conducting inspections:
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Is the firestop system listed? (e.g. by Underwriters Laboratories
(UL), Intertek Testing Services (ITS)).
Do the specified firestop systems comply with the standard testing
requirements for the in-place conditions?
The local authority having jurisdiction (AHJ) shall approve
Firestop system details and Firestop products. Hence, Firestop
systems details and materials should be included in the plans and
specifications.
How are engineering judgments evaluated?
Are all the firestop system details made available to building
inspectors?
Do the general contractor and subcontractors understand that the
protection of penetrations and joints will be inspected?
Firestop systems must not be concealed from view before being
inspected and approved
Walkthrough visual inspections should be made during the firestop
installation
When necessary or required, a destructive evaluation will be made
on various types of firestop systems
Flashlights, coring device and other appropriate tools make a proper
inspection easier
Proper depths, annular space and product types are critical to the
effectiveness of the system
Construction documents detailing the firestop locations and systems
must be kept on-site to assist in the conduct of the inspection
Observe that the actual products, containers, wrappings or boxes
are labeled with the approved testing agency marks and are as
specified in the submitted details
Measure the depth and width of materials as indicated in the details
(sometimes density measurements are also required for products
such as thermal insulation)
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