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Old 06-03-2013, 05:45 PM   #1
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Roof Ventilation problem


I have a 7 year old home, the main roof is fine however the first floor addition roof needs replacement. I think it's due to improper ventilation. This inside ceiling is vaulted. I was thinking of installing a ridge vent on the peak in order to improve ventilation. Would a ridge vent work properly in this location and help my problem? or should I just add more louver roof vents? See picture.
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Old 06-03-2013, 08:57 PM   #2
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Roof Ventilation problem


I don't know if you have enough room with the low windows, but a clerestory wall vent would work well there. I've used lomancos omni-wall quite a few times in the same situation.
As long as the attic spaces are connected a ridge vent may be simpler however.

e- just noticed the vaulted ceiling, is it only on the gable section or the entire front?
There's a good chance that the 7 year life has as much or more to do with the shingles we had here 7 years ago than the ventilation, as well.


Last edited by PatChap; 06-03-2013 at 09:39 PM.
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Old 06-03-2013, 09:20 PM   #3
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Roof Ventilation problem


Where would it get it's make up air from?
To get a ridge vent to work it has to be able to draw in cooler air from below.
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Old 06-03-2013, 09:36 PM   #4
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Roof Ventilation problem


Thanks for the update re: my location this makes sense.

Re: air flow it will come up fine on the left hand side, however the right hand side of the peak is where I will have a problem. I was not convinced the ridge vent would work for my situation. I think the wall vent may work for the right hand side of the roof, but still have a problem with the right peak.
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Old 06-04-2013, 05:09 PM   #5
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Roof Ventilation problem


You should find out if those are BP shingles, I would say there is a good chance they are. BP recently lost a class action lawsuit for the shingles they made in that era, would probably be worth it for the minor hassle of filing. Any BP dealer will have the paperwork.
Your roofs either BP or IKO, if you get me a better picture of the shingles I can probably/maybe tell you which.
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Old 06-05-2013, 07:43 AM   #6
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Roof Ventilation problem


I would run some SmartVent on the roof deck near the wall.

You will have to pull some sheathing to see how the venting connects from the underside and to see if the soffit air is even able to get up there.

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