A Third Party Inspection (TPI) is an inspection required by the Authority Having Jurisdiction (AHJ). A TPI inspects the installed firestop system and sends the report to both the AHJ and the General Contractor. The TPI cannot be connected to any party in the system. Inspections are conducted using ASTM standards as a guideline.
ASTM 2174 Inspection of Installed Firestop
ASTM 2393 Inspection of Fire Resistive Joint Systems and Perimeter Fire Barriers
No Firestopping issue goes undiscovered or unaddressed.
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