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Old 11/6/18, 6:56 AM
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dokeefe dokeefe is offline
Certified Professional Inspector (CPI)
Join Date: May 2008
Location: Delmar, NY ★ New York's Capital Region
Posts: 1,936
Default Manville Roof Vent

Any information on this roof vent? Is this sort of like a AAV vent for a roof to allow air to escape from under the roofing material? I looked online and have an idea what it's use is but wanted to get some feed back on it from other inspectors.Do these really work?
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Manville Roof Vent-dscn7058-jpg   Manville Roof Vent-dscn7059-jpg  


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