Western Roofing Expo 2020

Philip Dregger

Technical Roof Services, a Salas O’Brien Company


Phil Dregger is a Professional Engineer, Registered Roof Consultant, and a recent recipient of the William C Cullen Award (ASTM D08). Phil works for Technical Roof Services, a Salas O'Brien Company, in Concord CA and has spent more than 30 years investigating, designing, and providing expert testimony regarding virtually all types of roof and waterproofing systems. He has special expertise in wind/hurricane damage, building code compliance, and condensation.

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