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I’ve built several additions using ridge vents. The ridge is not only not tar papered, it is intentionally left unsheathed to let hot attic air escape. a mat of leaky plastic fibres and a layer of cap shingles are all that keeps the water out.
As far as stripping and shingling one side at a time. I’ve never done it but it sounds like a good idea to have as little exposure to the weather as possible.
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I've built several additions using ridge vents. The ridge is not only not tar papered, it is intentionally left unsheathed to let hot attic air escape. a mat of leaky plastic fibres and a layer of cap shingles are all that keeps the water out.
As far as stripping and shingling one side at a time. I've never done it but it sounds like a good idea to have as little exposure to the weather as possible.
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RJT
The "gap you are seeing may be a fiber ridge vent system. It is about an inch thick woven fiber. Cap shingles are placed on top. A really nice system. looks a lot better than a metal ridge vent.
Rick Tuk
*I think all the above posts may be correct. Hard to say without seeing the roof in question,but it is also quite possible the hip caps are applied correctly but have not sealed down yet. Because of the sharp bend needed ,this can take a lot of time in cooler weather.Good Luck,Stephen
*I tend to agree with Stephen. Since the caps are on a hip, I can't see it being a ridge vent.I would suspect the caps have yet to "meltdown".If it is indeed a ridge cap over the hip, I would inspect the roof more closely and see if anything else appears to be incorrectly installed. I have never heard of any shingle manufacturer that suggests ridge vents on hips.
*I am not referring to a ridge vent, I was kind of careful to refer to this as a hip cap. There are no ridge vents as of yet on this house. What we are talking about is a hip cap that is not suitably covered by roofing paper. I understand that a ridge vent you can see the gap, I am not talking about a ridge vent, I am talking about a simple hip cap that is uncovered by roofing paper and the HIP shingles are not applied carefully so that the wind can blow H2O underneath into..... oh forget it!!
*RJT, don't sweat it. I'm not sure where you're located,but here in Ohio, with 29 yrs. of experiance, I have never seen ridge caps leak, as long as they were capped from the bottom up(oh yes-I did see one capped from the top down, and it did leak) The only way I can see a ridge cap leak is in hurricane conditions, with sustained winds capable of blowing water up under the caps. What you describe could very well be a code violation in those areas.John
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A nearby home is being re-roofed and I was kind of surprised to see that they stripped one side at a time, sheathed it, papered it, and shingled it right to the hip, and then went to the next side and did the same, and then capped the hip. In other words, there is nothing covering the hip as far as roofing paper, other then the cap shingles. What makes this a point of interest is that the cap shingles are not properly applied so that you can see from 3 stories down and across the street quite a gap between the cap shingle and the one below. Am I too picky? Where's the building inspector? How come the owner's aren't as concerned as I am? How does this contractor get away with this?