snow country ridge vent on 2:12 pitch roof

fxtm

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.

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

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

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.

__________________
-Grumpy

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The information found in this post is not to be considered legal advice. All information should be considered relative, not specific. Never attempt any repairs you are not comfortable with. Always maintain safety! The author of this post takes no responsibility for any losses that occur. Use at your own risk.

longspur

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

I'm not aware of any "right" ridgevent product that is rated for less than 3/12.