Counteracting high winds with low pressure: Development and testing of a new roof vent system

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dc.contributor.authorGrant, Elizabeth J.en
dc.contributor.authorJones, James R.en
dc.date.accessioned2020-09-04T23:33:28Zen
dc.date.available2020-09-04T23:33:28Zen
dc.date.issued2011-01-01en
dc.date.updated2020-09-04T23:33:25Zen
dc.description.abstractRoof system failures are common during high wind events. In locations subject to high wind conditions, membrane roofing systems must typically be either physically attached or fully adhered to the substrate or ballast may be added to weigh down the membrane. An alternative to these installation approaches could be to use aerodynamics principles such as the Bernoulli and Venturi effects to create a low-pressure region beneath the membrane roof that is lower than the ambient pressure and thus counteracts the uplifting force. A new omnidirectional vent has been designed and tested that takes advantage of these aerodynamics principles to induce low pressure under the membrane layer. This new vent operates with no moving parts and was tested in the high-speed stability wind tunnel at Virginia Tech to wind speeds up to 233 km/h. The results demonstrate that this new vent generates pressures lower than the ambient when subjected to high wind conditions. This paper presents the design principles and performance test results for this new roof vent system and other applications for roof vent technologies.en
dc.description.notesThe Journal of Green Building is a peer reviewed journal that combines research with practical applications. It had a SCImago Journal Rank indicator of 0,174 in 2012 and has an estimated 56% acceptance rate.en
dc.description.versionPublished (Publication status)en
dc.format.extentPages 65-76en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.3992/jgb.6.4.65en
dc.identifier.eissn1943-4618en
dc.identifier.issn1552-6100en
dc.identifier.issue4en
dc.identifier.orcidGrant, Elizabeth [0000-0002-5468-7990]en
dc.identifier.urihttp://hdl.handle.net/10919/99906en
dc.identifier.volume6en
dc.language.isoenen
dc.publisherCollege Publishingen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject1201 Architectureen
dc.subject1202 Buildingen
dc.titleCounteracting high winds with low pressure: Development and testing of a new roof vent systemen
dc.title.serialJournal of Green Buildingen
dc.typeArticle - Refereeden
pubs.organisational-group/Virginia Tech/Architecture and Urban Studiesen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Architecture and Urban Studies/School of Architecture + Designen
pubs.organisational-group/Virginia Tech/Architecture and Urban Studies/CAUS T&R Facultyen
pubs.organisational-group/Virginia Techen

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