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-   -   snow country ridge vent on 2:12 pitch roof (http://www.diychatroom.com/f9/snow-country-ridge-vent-2-12-pitch-roof-120693/)

fxtm 10-20-2011 03:01 PM
snow country ridge vent on 2:12 pitch roof
 
I had whole roof replaced in the summer with Cobra snow country ridge vent installed. I knew the back of my house (2nd floor) has low-slope but did not know how much low. After the ridge vent was installed, we had quite some wind driven rains and I started to worry about the ridge vent. I final got up to the roof and measured the slope, it is 2:12. http://www.diychatroom.com/members/f...86-roofpic.jpg

But the snow country ridge vent has a minimum requirement of 3:12. I asked my roofer to fix the installation, but was told there should be no problem. Since there is no access to the attic right below the low-slope roof, I don't know if there were water coming in or not through the ridge opening.

Should I insist the roofer to remove the ridge vent over the low-pitch side or there is really no problem? PS, there is 10 year workmanship warranty.

seeyou 10-23-2011 08:18 PM
It's steep enough on the front side. If he only cuts out the sheathing on that side, it should be fine. Won't vent quite as well,but will still work.

Grumpy 10-30-2011 11:48 AM
I agree with See you, but it can still be problematic if wind driven rain is blown from the back side. Also snow sitting atop the vent may be a problem. I personally would not have installed the ridge vent and would have installed two-way breather vents designed for use with a flat roof on the rear flat roof.

longspur 11-01-2011 07:15 PM
Quote:
Originally Posted by fxtm (Post 752907)
I had whole roof replaced in the summer with Cobra snow country ridge vent installed. I knew the back of my house (2nd floor) has low-slope but did not know how much low. After the ridge vent was installed, we had quite some wind driven rains and I started to worry about the ridge vent. I final got up to the roof and measured the slope, it is 2:12. http://www.diychatroom.com/members/f...86-roofpic.jpg

But the snow country ridge vent has a minimum requirement of 3:12. I asked my roofer to fix the installation, but was told there should be no problem. Since there is no access to the attic right below the low-slope roof, I don't know if there were water coming in or not through the ridge opening.

Should I insist the roofer to remove the ridge vent over the low-pitch side or there is really no problem? PS, there is 10 year workmanship warranty.
If the roofer installed it on by his recommedation and your pitch is 2 12 and the manufacturer says minium 3 12, he installed the wrong product for your roof. Get the right product installed

seeyou 11-01-2011 07:26 PM
Quote:
Originally Posted by longspur (Post 761739)
If the roofer installed it on by his recommedation and your pitch is 2 12 and the manufacturer says minium 3 12, he installed the wrong product for your roof. Get the right product installed
I'm not aware of any "right" ridgevent product that is rated for less than 3/12.


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