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Old 08-09-2007, 08:26 AM   #16
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Cobra Ridge Vent Or Air Vent Shinglevent ll ?


Have you ever tried doubleing up three tabs for caps ? it looks very similar to Timbertex.


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Old 08-09-2007, 08:38 AM   #17
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Cobra Ridge Vent Or Air Vent Shinglevent ll ?


I'm not sure what you mean by doubling up? My roof currently has the old style metal ridge vent. No shingles on it! So none to blow off or crack, fall apart or whatever. I always liked the way it looked too.LOL

Last edited by Docfletcher; 08-09-2007 at 08:50 AM.
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Old 08-09-2007, 01:06 PM   #18
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Cobra Ridge Vent Or Air Vent Shinglevent ll ?


When they take off the metal you will see how dirty the venting part is. Cobra does the same and plugs up. Then it slowly doesn't breathe as well just like the old metal grate soffit vents.
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Old 08-09-2007, 05:09 PM   #19
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Cobra Ridge Vent Or Air Vent Shinglevent ll ?


Well then, we will see. There is no filter material in mine. The air simply goes up into a upside down 'U" shaped area, then out the side next to the deflector plate. Even though the air makes a "U" turn it seems to work. At least I think it does because I can feel air coming out.
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Old 08-09-2007, 05:21 PM   #20
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Cobra Ridge Vent Or Air Vent Shinglevent ll ?


Surprising it doesn't leak then unless you have a steeper pitch.
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Old 08-09-2007, 07:02 PM   #21
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Cobra Ridge Vent Or Air Vent Shinglevent ll ?


Quote:
Originally Posted by RooferJim View Post

Shingle vent is great for there "drink the coolaid" seminar where they make you think its better than sliced bread. I went to it, and I also installed thousands of feet of it,

1. However there are several problems. one is that pine needles tend to get traped in the vent and you cant get them out.

2. another is that the baffel warps and looks like spagetti after about six or so years.

I went back to regular cobra and im not buying the propaganda or drinking there coolaid. One time or another I have tried every ridge vent out there.

RooferJim

Jim,



I just happened to be on a roof where we installed the Shingle Vent II 8 Years and 11 Months ago. I couldn't resist taking actual field test photos of them.


I see no spaghetti like wavy appearance or pine needles or any other debris stuck in the trough of the external baffle. (Except for the fresh bird poop in the end of the roof photo on the left side of the trough.)

Are you sure you installed them correctly?

We always use 2 1/2" hand nails and nail in every one of the designated nail placement locations on the vent product. They sort of make it idiot proof, except for providing the proper sized nails or any nails at all for that matter.

Ed
Attached Thumbnails
Cobra Ridge Vent Or Air Vent Shinglevent ll ?-nathani-ridge-vent-8-years-11-months-old-100_4711.jpg   Cobra Ridge Vent Or Air Vent Shinglevent ll ?-nathani-ridge-vent-8-years-11-months-old-100_4714.jpg   Cobra Ridge Vent Or Air Vent Shinglevent ll ?-nathani-ridge-vent-8-years-11-months-old-100_4717.jpg   Cobra Ridge Vent Or Air Vent Shinglevent ll ?-nathani-ridge-vent-8-years-11-months-old-100_4721.jpg   Cobra Ridge Vent Or Air Vent Shinglevent ll ?-nathani-ridge-vent-8-years-11-months-old-100_4710.jpg  


Last edited by Ed the Roofer; 08-09-2007 at 07:12 PM.
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Old 08-09-2007, 09:10 PM   #22
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Cobra Ridge Vent Or Air Vent Shinglevent ll ?


I don't know why it don't leak. It's aluminum from Sept 1984. I'm sure it don't though. I used to go up in the attic every time it rained day or night to check it. LOL

I looked at the photos of shingle vent ll. Here at my house I'm sure tree crap and pieces of leaves etc would fall into the area of the slots. Just as they do in my current vent. No slots in mine though. You can put your fingers where the slots would be and curl them up toward the top of the vent. As a matter of fact it is at that top that the air come out. I don't know any way around stuff falling in and on there. It almost acts like a gutter. I use a back pack blower once or twice a year to clean out the gutters (YUCK) and while I'm at it I blow out rhe channel of the vent. I need to get some tree work done. Might cost almost as much as the roof.

By the way do gutters get discussed here in the roofing forum?

Last edited by Docfletcher; 08-09-2007 at 09:21 PM.
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Old 08-09-2007, 09:34 PM   #23
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Cobra Ridge Vent Or Air Vent Shinglevent ll ?


As I stated in my recent post, the photos are of a nearly 9 year old roof with significant evergreen trees and broad leaf trees abutting the roof area.

The gutters need cleaning 3-4 times per year, but the Shingle Vent II external wind deflecting baffle trough is completely obstacle free.

I did not clean out the vent troughs prior to taking the photos, in case someone were to question that aspect.



Yes, gutter questions can be asked in the roofing forum.

Ed
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Old 08-09-2007, 10:24 PM   #24
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Cobra Ridge Vent Or Air Vent Shinglevent ll ?


My trees actually overhang the house. Very much contributing to my lovely moss garden on the roof. I let them go to long for sure. If I didn't clean the gutters with a back pack blower I'd have a gutter garden for sure. If the shingle vent ll deflects the trash as well as the wind, and if the warping problem on some is do to factors other than the product (which my gut feeling tells me is most likely) then that seems ok. Whats not to like...

I know with the 4 bundle per sq type shingle you are supposed to caulk under the vent any low spots caused by
the mismatch in height from lower lamination to top lamination. A roofer would need to be true craftsman and dedicated to take the time to do that I think. Or I could be wrong as I have not tried it. Sounds time consuming.

Last edited by Docfletcher; 08-09-2007 at 10:27 PM.
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Old 09-30-2007, 10:36 AM   #25
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Cobra Ridge Vent Or Air Vent Shinglevent ll ?


We're in the middle of having a new roof installed (GAF Timberline Ultra) and, based on the recommendations I came across on this site, opted to use the GAF Snow Country ridge vent system. The roofers just finished the area over our family room (the only part of the house with a cathedral ceiling) and ran Snow Country over the 15' ridge.

The problem is: I hate it. Snow Country is a big eyesore, in my opinion. The shingles that cap the ridge stick up a couple of inches above the other shingles and the black plastic of the ridge vent protrudes about two inches beyond the edge of the capping shingles. It's really ugly.

We're having the roofers remove the Snow Country and install a lower profile system. They can't recall the name of the product, but describe it as being made of plastic in the form of corrugated cardboard that lifts the cap shingles just slightly off the roof for ventilation.

Bottom line: if you care at all for aesthetics, avoid Snow Country and Shingle Vent II type products!

(I expect to be excoriated for my statements here, but that's OK, I won't take it personally)
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Old 09-30-2007, 04:08 PM   #26
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Cobra Ridge Vent Or Air Vent Shinglevent ll ?


You are the extremely rare individual who thinks that the ridge vents you mentioned are an eyesore.

Personally, I prefer function over form. I mean that I prefer to install the product which offers the greatest amount of air flowage and the lack of potential weather infiltration.

I don't know about the Snow Country brand, but the Shingle Vent II comes in 4 color choices, black, brown, charcoal and grey to blend in with the color of the shingle chosen.

If you really want a ridge vent that is unobtrusive, then I recommend the Smart Ridge I, from DCI Products, which allows the shinlgles to completely seal one side whil allowing the entir\e air flow to exhaust from the opposing side. I am awaiting a new wind dynamics study which shows that the amount od airflow from this one sided vent actually provides as much or more exhaust ventilation as the other brands, although the logistics seem otherwise.

Jack, if you are reading this, please forward the wind study to me that we spoke of.

Ed

Last edited by Ed the Roofer; 09-30-2007 at 06:27 PM.
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Old 09-30-2007, 05:40 PM   #27
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Cobra Ridge Vent Or Air Vent Shinglevent ll ?


If memory serves... When I watched the GAF Snow Country ridge vent installation video, the cap shingles were literally folded over 1" or 1 1/2" twice at the ends. Then nailed in place. This gives them pronounced slant or rise end to end. Personally I like that look. However, I can understand how a short run over fifteen feet might look somewhat ungainly.
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Old 09-30-2007, 08:47 PM   #28
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Cobra Ridge Vent Or Air Vent Shinglevent ll ?


For what it's worth, here's a link to my Flickr page (with lots of boring shots of friends and family) with 3 shots I took of the Snow Country ridge vent.

Ed, I can see you also frequent the Roofing.com site, so please excuse this redundancy.

http://www.flickr.com/photos/andykaren/?saved=1

I'm wondering if this looks like a normal installation. I too generally perform function over form, unless the results look bad. This strikes me as clumsy-looking, but I'm open to alternative points of view. Click the photo, then click "All Sizes" button above the picture for extreeme close up

Thanks,
Andy
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Old 09-30-2007, 09:46 PM   #29
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Cobra Ridge Vent Or Air Vent Shinglevent ll ?


Any chance that the pros have some pics of either the shinglevent II or Snow country ridge vents installed? Scoured the net and came up empty.

Many thanks!
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Old 09-30-2007, 10:53 PM   #30
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Cobra Ridge Vent Or Air Vent Shinglevent ll ?


I looked for the video at the GAF site that showed roofers installing and folding the cap shingles. I could not find it.

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