Updated: June 21, 2023


This Bulletin clarifies BC Section 917.3.1 with regards to the stair ventilation method in that all enclosed exit stairs in Group R-2 occupancy must be provided with a reversible fan system that is capable of pressurizing or exhausting the area of the largest floor.

Post-fire smoke purge systems are designed to extract smoke from indoor areas after a fire has been extinguished. The post-fire smoke purge systems help the building and the building occupants to resume normal activities as quickly as possible once the fire has been extinguished.

The exhaust air/smoke removed by the post-fire smoke purge system must not be recirculated into the building, and such air/smoke must be discharged to a safe location outside of the building in accordance with the NYC Construction Code.

The 2022 BC 917.3 (2014 BC 916.3) requires post-fire smoke purge systems in R-2 occupancies to be provided by either Stair Ventilation (BC 917.3.1) or Corridor Ventilation (BC 917.3.2).

Read detailed NYCDOB Buildings Bulletin here…

Cahill Welcomes Bernie Ross

Cahill Strategies Welcomes Bernie Ross Cahill Strategies Welcomes Former NYC DOB Director of Construction Safety Enforcement, Bernie Ross

It is with great pleasure that Cahill Strategies welcomes veteran DOB safety leader Bernie Ross as Senior Construction Safety Associate.

Bernard “Bernie” Ross is former New York City Department of Buildings Director of Construction Safety Enforcement. With more than 20 years serving the DOB as a Construction Inspector, Supervising Inspector, Director Major Projects, and finally, Director of Construction Safety Enforcement. Read more about Bernie here…

New York Construction Solutions

Cahill Strategies has experience representing large general contractors, construction management firms, owners, and developers. A key to our success is our vast network of decision makers that we have the ability to reach on your behalf. Additionally, our team is involved in the legislative and regulatory processes at the Federal, State, and Local levels which affect the construction industry in New York State, New York City, and surrounding regions. We possess the knowledge of industry standards and trends, along with key relationships that will bring your projects to fruition. Read more…

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Cahill Welcomes Bob D’Alessio

bob dalessio Robert “Bobby” D’Alessio, is a former New York City Department of Buildings Senior Executive Director of Construction Safety. Mr. D’Alessio’s focus is predominately in the areas of construction code and safety analysis for our clients’ major new building and renovation projects in the New York City and surrounding regions.

As Cahill Strategies’ Director of Construction Code and Safety, Bobby brings an unparalleled level of knowledge and practical experience to our growing construction solutions practice area.

More about Bob D’Alessio…

Get to know Kevin Moran

Kevin Moran - Cahill Strategies Kevin, the Vice President of Construction Solutions at Cahill Strategies, brings a wealth of experience in the New York construction industry to his role. He has a strong track record of guiding clients through complex building processes, with a range of successful projects under his belt, including commercial and residential developments, infrastructure and transportation projects, and various utility matters.

More about Kevin Moran…