Phil Dregger presents at the 24th Annual IIBEC Southern California Chapter Winter Workshop

Phil Dregger of Salas O’Brien is presenting, Cause of Massive Roof Leaks Disputed – Insights from a subrogation case at the 24th Annual IIBEC Southern California Chapter Winter Workshop at the Royal Sonesta Kaua’I Resort on January 16, 2025. Get registration information.

This workshop is designed to improve the skills and knowledge of design, rehabilitation, and forensics professionals (consultants, architects, and engineers), developers, contractors, and building system manufacturers.

Phil Dregger, PE, RRC, is a seasoned consultant and expert witness specializing in roofing, waterproofing, and building enclosure systems. His expertise extends to California’s Title 24 Part 6 Energy Code, with a particular focus on roof drainage and wind or hurricane damage. Phil’s experience in patent litigation, cold storage, and condensation issues is marked by his skill in hygrothermal analysis, including wood decay, biological growth, and corrosion, utilizing tools like WUFI Pro, ASHRAE Standard 160, and ASTM E3054. A recognized figure in the industry, Phil actively contributes through presentations to industry and legal groups, authoring numerous technical articles. His contributions have been acknowledged with prestigious awards such as the ASTM D08 William C Cullen Award and the IIBEC/RCI Lifetime Achievement Award.

There was no dispute leaks were terrible. The dispute was if the great volume of leak water ‘proved’ water had to have been ponded on the roof.

Phil Dregger, PE, RRCVice President, Salas O’Brien

About IIBEC

The International Institute of Building Enclosure Consultants (IIBEC) is an international association of professionals who specialize in roofing, waterproofing, and exterior wall specification and design. From sprayed polyurethane foam to cedar shakes, from parking garages to air barriers, IIBEC has a member expert for every type of roof, exterior wall, or waterproofing issue in the world today.

About Salas O’Brien

Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment. Our team is engineered for impact, helping clients achieve critical goals, advancing our team members through growth and opportunity, and operating at the center of important global issues, including sustainability and decarbonization. We are a top firm as ranked by Engineering News-Record and Consulting-Specifying Engineer, and we have appeared for over a decade on the Inc. 5000 list of North America’s fastest-growing private companies.

For more details or to set up an interview, please reach out to [email protected]. 

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