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Philip Dregger

VP, Senior Project Manager


Master of Science in Civil Engineering
University of Minnesota, Minneapolis

Bachelor of Science in Civil Engineering
University of Minnesota, Minneapolis


Professional Engineer

Registered Roof Consultant

Areas of Expertise

Data Centers & Telecom, Food & Beverage, Pharmaceuticals, Industrial Manufacturing, Building Science, Building Envelope, Litigation Support, Cold Storage, Hygrothermal Analysis, Condensation, Wind Damage, Wood Decay

Phil Dregger is a Professional Engineer, Registered Roof Consultant, and Fellow of the International Institute of Building Enclosure Consultants (IIBEC, formerly RCI). Mr. Dregger provides consulting and expert testimony (>60 depositions / arbitrations / trials) involving roofing, waterproofing, and building enclosure systems. Phil has special expertise in California Title 24 Part 6 (Energy Code); roof drainage; wind/hurricane damage; patent litigation, cold storage, and condensation problems; including hygrothermal analysis of wood decay, biological growth, and corrosion using WUFI Pro, ASHRAE Standard 160, and ASTM E3054. Phil lectures often to industry and attorney groups, has authored many technical articles, and recently received ASTM D08 William C Cullen Award and the IIBEC/RCI Lifetime Achievement Award. Download his CV.