Wind Uplift Model for Asphalt Shingles

Peterka, Jon A.; Cermak, Jack E.; Cochran, Leighton; Cochran, Brad C.; Hosoya, N.; Derickson, Russ; Harper, C T; Jones, J. B.; Metz, B

doi:10.1061/(asce)1076-0431(1997)3:4(147)

Cited by 35 publications

(11 citation statements)

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“…Wind loading on permeable roof coverings is influenced by the characteristics of the wind flow near the roof surface (Peterka et al, 1997). Besides affecting wind loading, other important aspects of surface flow velocity are its influence on rain penetration or snow accumulation, and on ventilation and the dispersion of fumes from heating systems (Barnard and Driviere, 1994).…”

Section: Evaluation Of Wind Loading On Hip Ridge and Perimeter Tilesmentioning

confidence: 99%

“…Peterka et al (1997) and Cochran et al (1999) used a location 25 mm above a roof surface to measure local wind velocities on roof shingles. For this study, it was decided to measure the surface flow velocity at the same 25 mm above the tile surfaces.…”

Section: Measurement Of Wind Flow Near Hip Ridge and Eave/perimetermentioning

confidence: 99%

“…Roof Tile Loading Model based on method applied for shingle loading (Peterka et al, 1997) Roof tiles and roof shingles are categorized as porous roofing materials, and have similar wind loading mechanisms. Hence, an alternative method of estimating wind loads on hip, ridge, and roof perimeter tiles could be using the peak speed-up factor approach as used for roof shingles (Peterka et al 1997).…”

Section: Roof Tile Loading Model -Florida Building Codementioning

confidence: 99%

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Wind loading on ridge, hip and perimeter roof tiles: A full-scale experimental study

Habte¹,

Mooneghi

Baheru

et al. 2017

Journal of Wind Engineering and Industrial Aerodynamics

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Section: Evaluation Of Wind Loading On Hip Ridge and Perimeter Tilesmentioning

confidence: 99%

Section: Measurement Of Wind Flow Near Hip Ridge and Eave/perimetermentioning

confidence: 99%

Section: Roof Tile Loading Model -Florida Building Codementioning

confidence: 99%

See 1 more Smart Citation

Wind loading on ridge, hip and perimeter roof tiles: A full-scale experimental study

Habte¹,

Mooneghi

Baheru

et al. 2017

Journal of Wind Engineering and Industrial Aerodynamics

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“…The net wind load is generally determined by the building flow field, wind gustiness, and element flow field [1], [2]. While these parameters directly influence the external pressure distribution on the roofing element, the internal pressure development, depending indirectly on these parameters, is governed by a dynamic response that varies in the roofing elements.…”

Section: Introductionmentioning

confidence: 99%

Wind Effect on Vibration and Scattering Behavior of Japanese Roofing Tile

Okamoto

2012

IERI Procedia

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A series of wind tunnel tests were conducted on the vibration and scattering behavior of full-size models of tiles widely used as roofing materials on Japanese wooden dwellings. This study has investigated the nature and source of such movement with the aim of providing better insight into the mechanism. The result of these measurements indicates that a basic mechanism can be developed that will lead to flow-induced vibration of the roofing tiles. The values of the oscillation frequencies relate to the values of natural frequencies of the vibration.

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“…It was concluded that the space between pavers improves the wind resistance of the loss-laid roofing paver system and the higher the ratio of space-between to space-underneath pavers and the larger the pavers, the higher the wind resistance of the system. Peterka et al (1997) and Jones et al (1999) studied a quantitative wind uplift model for asphalt shingles. Figure 2.9 shows the uplift mechanism of asphalt roof shingle.…”

Section: Pavers and Asphalt Shingles Roofingmentioning

confidence: 99%

Effects of Architectural Features of Air-Permeable Roof Cladding Materials on Wind-Induced Uplift Loading

Li¹

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Widespread damage to roofing materials (such as tiles and shingles) for low-rise buildings, even for weaker hurricanes, has raised concerns regarding design load provisions and construction practices. Currently the building codes used for designing low-rise building roofs are mainly based on testing results from building models which generally do not simulate the architectural features of roofing materials that may significantly influence the wind-induced pressures. Full-scale experimentation was conducted under high winds to investigate the effects of architectural details of high profile roof tiles and asphalt shingles on net pressures that are often responsible for damage to these roofing materials. Effects on the vulnerability of roofing materials were also studied. Different roof models with bare, tiled, and shingled roof decks were tested.Pressures acting on both top and bottom surfaces of the roofing materials were measured to understand their effects on the net uplift loading. The area-averaged peak pressure coefficients obtained from bare, tiled, and shingled roof decks were compared. In addition, a set of wind tunnel tests on a tiled roof deck model were conducted to verify the effects of tiles' cavity internal pressure. Both the full-scale and the wind tunnel test vii results showed that underside pressure of a roof tile could either aggravate or alleviate wind uplift on the tile based on its orientation on the roof with respect to the wind angle of attack. For shingles, the underside pressure could aggravate wind uplift if the shingle is located near the center of the roof deck. Bare deck modeling to estimate design wind uplift on shingled decks may be acceptable for most locations but not for field locations; it could underestimate the uplift on shingles by 30-60%. In addition, some initial quantification of the effects of roofing materials on wind uplift was performed by studying the wind uplift load ratio for tiled versus bare deck and shingled versus bare deck. Vulnerability curves, with and without considering the effects of tiles' cavity internal pressure, showed significant differences. Aerodynamic load provisions for lowrise buildings' roofs and their vulnerability can thus be more accurately evaluated by considering the effects of the roofing materials.

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Wind Uplift Model for Asphalt Shingles

Cited by 35 publications

References 1 publication

Wind loading on ridge, hip and perimeter roof tiles: A full-scale experimental study

Wind loading on ridge, hip and perimeter roof tiles: A full-scale experimental study

Wind Effect on Vibration and Scattering Behavior of Japanese Roofing Tile

Effects of Architectural Features of Air-Permeable Roof Cladding Materials on Wind-Induced Uplift Loading

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