Ridge vents in hurricane area - General Roofing Discussion - Contractor Talk

Ridge vents in hurricane area

 
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Old 09-04-2019, 07:27 PM   #1
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Ridge vents in hurricane area


My first post, since I just found this forum. I'm a general contractor with a mostly commercial building background in NC and surrounding states, very little experience with house building.

I am researching to find the best type of ridge vent for a house in high wind area, 150 mph ultimate wind speed design. This is in central Florida where it will be exposed to a hurricane occasionally and tropical storms regularly. The house is rectangular with a hip roof. It will have a 6/12 pitch.

Everything I find online tells about problems with ridge vents leaking in high wind/rain, but does not tell how to resolve the problem.

I have also found "off ridge" vents that are set slightly below roof ridge level. These are supposed to be installed with a baffle flashing set an inch or two below the opening to deflect wind blown water, but these also allow water inside when wind comes at a diagonal angle.

Can some of you who are working in similar situations tell me what is "best practice" to prevent water intrusion in high wind/rain situations?

Thanks!
Walt

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Last edited by A W Warn; 09-04-2019 at 07:33 PM.
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