An experimental study of pressure distributions within an air-permeable, double-layer roof system in regions of separated flow

Oh, Jeong Hee; Kopp, Gregory A.

doi:10.1016/j.jweia.2014.12.006

Cited by 6 publications

(1 citation statement)

References 21 publications

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“…where f 24/Re is the friction factor for laminar Couette flow between parallel plates. The results from Oh and Kopp (2015) show that the boundary between varying cavity pressures and uniform cavity pressures can be characterized by ϕ 1, i.e., ϕ > 1 ϕ < 1 varying cavity pressure approx. linear uniform cavity pressures…”

Section: Introductionmentioning

confidence: 99%

A framework for design wind loads on air-permeable multilayer cladding systems

Miller,

Kopp

2024

Front. Built Environ.

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Air-permeable multilayer cladding (vinyl siding, roof pavers, discontinuous metal roofing, solar panels, etc.) are one of the most common types of building components in North America. Their defining aerodynamic feature is that they have an air cavity separating the component from the sheathing, studs, or interior layer. Due to air-permeability, external wind loads can transfer into the air cavity between the layers. Although these cladding systems have similar geometries in many ways, design loads are not generally available for such systems. This study aims to synthesize the available literature on the pressure equalization factor, which is the proportion of external load acting on the cladding and provide a framework for design wind loads on air-permeable multilayer cladding systems. To accomplish this, the many factors that affect the pressure equalization factor, such as the gap-to-cavity-depth ratio, panel size, and exposure are discussed. Then, the pressure equalization factors from multiple studies are combined to examine the effect of effective area on the pressure equalization factor. Finally, recommendations for implementing these guidelines into design standards are provided.

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Section: Introductionmentioning

confidence: 99%