A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Study of wind loads on asphalt shingles using full-scale experimentation
https://orcid.org/0000-0002-7744-0288
https://orcid.org/0000-0003-4849-767X
https://orcid.org/0000-0001-7799-673X
Abstract Asphalt shingles constitute more than 80% of the roofing materials in current residential housing in the United States. Many post-disaster surveys have reported the failure of these roofing elements below the design level wind event. Research to realistically model the aerodynamics of asphalt shingles at full-scale is limited, resulting in knowledge gaps in peak wind loads and effects of permeability. In this study, the aerodynamics and wind resistance of asphalt shingles are studied by using a monoslope roof tested at Florida International University's Wall of Wind Experimental Facility. Results from both aerodynamic and failure assessment test protocols showed that shingles near the upper corners of the roof were subjected to high suctions due to cornering winds. This presents a critical loading case for which asphalt shingle roofing systems are not typically tested using current standard tests. Moreover, the extent of permeability underneath the shingles was observed to vary with the spatial location of shingles and wind direction. Finally, the comparison of area-averaged peak Cp values obtained from this study with GCp plots in ASCE 7-16 Standard showed that these provisions, which do not consider the effects of permeable roofing elements (e.g., shingles), can underestimate wind loads on asphalt shingles.
Highlights The aerodynamic behavior of asphalt shingles on monoslope roofs is studied. The wind loading mechanism is observed to be dictated by both global and local aerodynamics. Permeability of asphalt shingles is found to vary with the spatial location of shingles and wind direction. Current standardized tests can underestimate loading on asphalt shingles.
Study of wind loads on asphalt shingles using full-scale experimentation
https://orcid.org/0000-0002-7744-0288
https://orcid.org/0000-0003-4849-767X
https://orcid.org/0000-0001-7799-673X
Abstract Asphalt shingles constitute more than 80% of the roofing materials in current residential housing in the United States. Many post-disaster surveys have reported the failure of these roofing elements below the design level wind event. Research to realistically model the aerodynamics of asphalt shingles at full-scale is limited, resulting in knowledge gaps in peak wind loads and effects of permeability. In this study, the aerodynamics and wind resistance of asphalt shingles are studied by using a monoslope roof tested at Florida International University's Wall of Wind Experimental Facility. Results from both aerodynamic and failure assessment test protocols showed that shingles near the upper corners of the roof were subjected to high suctions due to cornering winds. This presents a critical loading case for which asphalt shingle roofing systems are not typically tested using current standard tests. Moreover, the extent of permeability underneath the shingles was observed to vary with the spatial location of shingles and wind direction. Finally, the comparison of area-averaged peak Cp values obtained from this study with GCp plots in ASCE 7-16 Standard showed that these provisions, which do not consider the effects of permeable roofing elements (e.g., shingles), can underestimate wind loads on asphalt shingles.
Highlights The aerodynamic behavior of asphalt shingles on monoslope roofs is studied. The wind loading mechanism is observed to be dictated by both global and local aerodynamics. Permeability of asphalt shingles is found to vary with the spatial location of shingles and wind direction. Current standardized tests can underestimate loading on asphalt shingles.
Study of wind loads on asphalt shingles using full-scale experimentation
https://orcid.org/0000-0002-7744-0288
https://orcid.org/0000-0003-4849-767X
https://orcid.org/0000-0001-7799-673X
Abstract Asphalt shingles constitute more than 80% of the roofing materials in current residential housing in the United States. Many post-disaster surveys have reported the failure of these roofing elements below the design level wind event. Research to realistically model the aerodynamics of asphalt shingles at full-scale is limited, resulting in knowledge gaps in peak wind loads and effects of permeability. In this study, the aerodynamics and wind resistance of asphalt shingles are studied by using a monoslope roof tested at Florida International University's Wall of Wind Experimental Facility. Results from both aerodynamic and failure assessment test protocols showed that shingles near the upper corners of the roof were subjected to high suctions due to cornering winds. This presents a critical loading case for which asphalt shingle roofing systems are not typically tested using current standard tests. Moreover, the extent of permeability underneath the shingles was observed to vary with the spatial location of shingles and wind direction. Finally, the comparison of area-averaged peak Cp values obtained from this study with GCp plots in ASCE 7-16 Standard showed that these provisions, which do not consider the effects of permeable roofing elements (e.g., shingles), can underestimate wind loads on asphalt shingles.
Highlights The aerodynamic behavior of asphalt shingles on monoslope roofs is studied. The wind loading mechanism is observed to be dictated by both global and local aerodynamics. Permeability of asphalt shingles is found to vary with the spatial location of shingles and wind direction. Current standardized tests can underestimate loading on asphalt shingles.
Study of wind loads on asphalt shingles using full-scale experimentation
Tolera, Ameyu B. (author) / Mostafa, Karim (author) / Chowdhury, Arindam Gan (author) / Zisis, Ioannis (author) / Irwin, Peter (author)
2022-04-21
Article (Journal)
Electronic Resource
English
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