Inspection insight from alan margolin & associates

13 July 2020 | 10 min read

AMAA reviews some of our most commonly discussed topics. Consider the following if your project has these inspections.


Since Hurricane Sandy, the city continues to evaluate the best means for protecting NYC's buildings and infrastructure.  When a building is located in a special flood hazard zone, all new equipment (excluding the AC disconnect) must be located above the design flood elevation.  In certain instances, under Group I occupancies, existing buildings are required to install external connections to accommodate temporary boilers, chillers, and generators by January 1, 2033.  Special Inspections performed under Flood Zone Compliance are to ensure that all work is performed in accordance with the NYC Building Codes Appendix G.


New or modified fire suppression sprinkler systems should typically be hydrostatically tested at 200 psig (unless their system working pressure is above 150 psig).  System modifications affecting 20 or fewer sprinklers can be tested at system working pressure.  The same would apply to sprinkler modifications that cannot be isolated, such as relocated drops.  All testing will need to be witnessed by the special inspector and a calibrated pressure gauge should be used.


When welding work is performed that requires complete joint penetration welds, such as beam splicing, the work should be continuously monitored by the Special Inspector.  This ensures the steel is properly prepared, welds are placed satisfactorily, and the welders are licensed and certified for the type of work being performed. Complete joint penetration welds also require that nondestructive testing, usually via ultrasonic scan, be performed by a qualified technician.