Firestopping Inspections in New York City
Firestopping inspections are a required part of the construction approval process for most new buildings and major renovations in New York City. Understanding what inspectors look for — and how to prepare — can save you time, money, and project delays.
Who Inspects Firestopping in NYC?
Firestopping inspections in New York City are conducted by Special Inspectors (SIs) — licensed professionals approved by the NYC Department of Buildings. Special Inspectors verify that firestopping systems have been installed in accordance with approved UL-listed designs and NYC Building Code requirements.
What Inspectors Look For
During a firestopping inspection, Special Inspectors typically verify the following: that all penetrations have been firestopped; that the correct UL-listed system has been used for each penetration type; that products have been applied correctly and to the required depth; and that the assembly materials match the tested configuration.
Common Inspection Failures
The most common causes of firestopping inspection failures include missing firestopping on late-added penetrations, incorrect product selection for the penetration type, insufficient depth of firestopping material, improperly installed annular space (the gap between pipe and sleeve), and use of products not listed for the specific assembly.
How to Prepare for a Successful Inspection
The best way to prepare for a firestopping inspection is to work with a certified firestopping contractor from the start of your project. Ali Firestop maintains complete documentation of all installed systems, including UL system numbers, product data sheets, and as-built records that support your inspection package.
Contact Ali Firestop to learn how we can help your New York City project achieve firestopping inspection approval on the first attempt.