Commercial Roofing: An Advanced Discussion on Wind & Hail

DonanEngineering Articles, Commercial & Residential Roofing, Featured, Forensic Engineer, Forensic Engineering, Hail and Wind, Principal Consultant

By Christopher M. Scallion, P.E. Forensic Engineer, DONAN   Commonly called “flat roofs,” most commercial buildings are actually clad with roof systems that provide about 1/8 to 1/4 inch per foot of positive drainage.  These roof systems are constructed differently than most steep-slope roof coverings and are typically watertight rather than water-shedding assemblies. The most common commercial roof coverings are single-ply membranes, …