Natural Disasters

Full Session with Abstracts

505563 - Comparing the Performance of Residential Roofing Systems during Hurricane Harvey

Friday, April 26
1:30 PM - 3:00 PM
Location: Celebration 7-8

Hurricane Harvey devastated the Gulf Coast of Texas when it made landfall as a Category 4 storm in August of 2017. Several research teams, including one supported by the Geotechnical Extreme Events Reconnaissance (GEER) Association, performed structural assessments after the storm to determine the degree of damage caused by the storm event. One of the many observations by the research team was the disproportionate damage to residential roofs depending on the roof covering type (i.e. asphalt shingles, metal panels, or tiles). A team of researchers from the University of South Alabama evaluated the structural assessment data to determine the extent of roof damage. The team evaluated and categorized damage by roofing material to better understand the performance of each type. For a given geographic location or neighborhood, the percent of roofs of each type was determined as well as the percent of each roof type within a damage category. When performing the structural assessments after the storm event, each structure was evaluated and damage was categorized (0%, 25%, 50%, 75%, or 100%) for each element (i.e. roof cover, roof sheathing, roof framing, etc.). Roofs that were completely destroyed or substantially damaged (i.e. roof sheathing substantially damaged or roof framing damaged) were removed from the data set. The results of this study will allow professionals to have a better understanding of the performance of different roofing systems in design level wind events. Additionally, these results will allow industry professionals and researchers to improve building codes, improve the resiliency of structures, and target research to improve the performance of specific roofing systems.

John Cleary

Associate Professor
University of South Alabama

John Cleary is an Associate Professor of Civil Engineering at the University of South Alabama where he teaches undergraduate and graduate courses in Civil/Structural Engineering. John earned Bachelor and Master Degrees in Civil Engineering from Cleveland State University and a Ph.D. in Civil Engineering from Case Western Reserve University. His research and professional expertise includes concrete materials, construction vibrations, bridge engineering, wave impacts on bridge structures, and forensic engineering. John is an active member of ASCE at the local level and SEI at the local and national level, where among other things he serves as the chair of the SEI Student Initiatives Committee and the past chair of the LAD Excom. John is a registered Professional Engineer in Alabama and Florida.

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505563 - Comparing the Performance of Residential Roofing Systems during Hurricane Harvey

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