DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Roofing and Siding > attic venting - ridge vent with soffit inlet AND gable vent




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Old 06-02-2014, 11:33 PM  
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I still say close them, why? Because that's what the manufactures say to do. Not following the shingle MFG's installation specs will void their warranty.


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Old 06-03-2014, 07:50 AM  
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Originally Posted by nealtw View Post
As with anything else,as long as someone is making nice looking gable vents, they will be adding to the confussion

http://www.airvent.com/professional/...shooting.shtml
Your link hints at laminar flow, with the wind from gable vents maybe causing turbulent flow, and laminar is better for heat transfer.
This gets interesting.

http://www.google.com/search?client=...%22+pdf&rls=en


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Old 06-03-2014, 11:03 AM  
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I still say close them, why? Because that's what the manufactures say to do. Not following the shingle MFG's installation specs will void their warranty.
Now that you mention it, "Does it void the warranty?" should be the first question asked and the answer should pull more weight than many Internet searches.
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Old 06-03-2014, 05:16 PM  
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No shingle MFG will warranty their product over an unapproved method of ventilation. Certainteed, will warranty their shingles over a non-ventilated, insulated roof deck, but require proper venting on ventilated roof structures. GAF and the others do not warranty over insulated/spray foam surfaces.

In the installation manuals they will specify to close off the gable or dormer vents.
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Old 06-03-2014, 05:25 PM  
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I am sure the MFGs have their reason and mostly money. Like I said before, just because there is a debate dosn't make both sides right. There lots of people selling nice looking vents for the gable, ask them to warranty the roof. It is all about the money like big oil and GW.
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Old 06-03-2014, 06:13 PM  
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Ventilation has been a moving target the last 20 years. There are as many opinions as well, you name it. Only thing I can tell you is, what works on one house usually doesn't preform well on the next door neighbor. There are so many factors that figure into the equation that I got to the point that the MFG has the ultimate say, cause they are the one taking care of product failure if it occurs. If I as an installer deviate from their requirements, I put my customer in a bad position, cause I didn't do what they hired me to do.

Guess I'm getting to old to reinvent the wheel.
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Old 06-03-2014, 06:22 PM  
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The wheel has been around for a while, there are people who tell they make a better one.
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Old 06-03-2014, 06:26 PM  
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The wheel has been around for a while, there are people who tell they make a better one.

I'm on my second set of Toyo'S on my F-350 that will hit 60K. Click image for larger version

Name:	ImageUploadedByHome Repair1401841573.361719.jpg
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ID:	6627
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Old 06-03-2014, 07:27 PM  
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You are just not keeping up
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Old 06-04-2014, 05:19 AM  
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I'm on my second set of Toyo'S on my F-350 that will hit 60K. Attachment 6627
Wow...I would love to get that kind of wear on my 6 tires.....


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