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Patrick Ryan, PE, CEM, Dewberry, Peoria, Illinois

Patrick Ryan, PE, CEM

Patrick Ryan, PE, CEM, is a mechanical engineer and Deputy Discipline Lead at Dewberry.

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Figure 3: To successfully identify the best path forward, it’s important to establish early collaboration among the entire project team, including engineers, architects and contractors. Courtesy: Dewberry
Codes and Standards April 16, 2025

How addenda to ASHRAE Standard 90.1-2022 affect design

The standard is updated every three years, and addenda directly affect design.

By Patrick Ryan, PE, CEM
Figure 4: This visual representation can help designers determine the best path to compliance. Courtesy: Dewberry
Codes and Standards April 2, 2025

Know how to navigate compliance paths of ASHRAE Standard 90.1

The shift toward energy efficiency will require engineers and designers to become proficient in the updated methods and requirements contained within ASHRAE Standard 90.1-2022.

By Patrick Ryan, PE, CEM
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