Full Session with Abstracts
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.