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Old 10-12-2013, 02:14 PM   #1
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Roof sheathing


Hi,

Can someone tell me the proper way to install sheathing at the very peak of the roof? Do you overlap the edge of one sheet over the other side or just meet both sheets at the very top?

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Old 10-12-2013, 02:48 PM   #2
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Depends on how the roof is framed, venting, etc.

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Old 10-12-2013, 02:48 PM   #3
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Roof sheathing


do you have a ridge vent?
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Old 10-12-2013, 04:51 PM   #4
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do you have a ridge vent?
No no ridge vent. At what point do I stop the sheathing when I get to the very peak is what I am asking.
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Old 10-12-2013, 05:02 PM   #5
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Roof sheathing


Big mistake to not have a ridge vent but just having them meet at the peak with no over lap or even leaving them a little short is what I would do.
The plywood needs room to expand and contract.
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Old 10-12-2013, 05:11 PM   #6
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like joe said
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Old 10-12-2013, 06:38 PM   #7
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like joe said
I might install a ridge vent yes. I have a truss roof. From what I read on the directions I need to make a 3/4" cut from each side of the truss peak which would give 1.5" of open air space for the vent. Sound about right? I know some manufacturers might have different directions but from the one I found that is what they suggested. When you need to join 2 pieces of ridge vent do you simply but them up together and caulk the seam?
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Old 10-12-2013, 07:09 PM   #8
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Quote:
Originally Posted by detroittigerfan View Post
I might install a ridge vent
Do you have eave vents? Without them the ridge vent is worthless.
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Old 10-12-2013, 07:27 PM   #9
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Roof sheathing


i'm not a fan of ridge vents in a snow state. I like metal louvers sloped on front. No snow no problem. When sheathing you want to leave a small gap on all sheets where they meet. About the size of a good size framing nail should do it. This allows for expansion so the roof won't buckle.
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Old 10-12-2013, 07:34 PM   #10
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Roof sheathing


If you are going to use ridge-vent -
most ridge-vents are continuous or in sections (with transition, joiners)
No soffit vents?? (in the eaves) - not good!
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Old 10-13-2013, 07:53 AM   #11
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If you are going to use ridge-vent -
most ridge-vents are continuous or in sections (with transition, joiners)
No soffit vents?? (in the eaves) - not good!
Yes there is soffit vents.
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Old 10-13-2013, 08:39 AM   #12
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If you are going to use ridge-vent -
most ridge-vents are continuous or in sections (with transition, joiners)
No soffit vents?? (in the eaves) - not good!
The ridge vent I am going to use is in 2 sections. No transition. Do I simply but the ends together and caulk the seam?
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Old 10-13-2013, 09:11 AM   #13
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Roof sheathing


Quote:
Originally Posted by detroittigerfan View Post
The ridge vent I am going to use is in 2 sections. No transition. Do I simply but the ends together and caulk the seam?
Metal? Lap them 6" with a bit of caulk inside the lap, hidden from the elements.
Mesh or otherwise being covered by cap? Butt the sections.


Nobody mentioned it and it might be moot. The sheathing must reach the peak if NO RV is being used. 1-1/2" short to 2" short WITH RV being used. It's subject to the width of the ridgeboard with 3/4" opening to each side being minimum.
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Old 10-13-2013, 10:22 AM   #14
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Metal? Lap them 6" with a bit of caulk inside the lap, hidden from the elements.
Mesh or otherwise being covered by cap? Butt the sections.


Nobody mentioned it and it might be moot. The sheathing must reach the peak if NO RV is being used. 1-1/2" short to 2" short WITH RV being used. It's subject to the width of the ridgeboard with 3/4" opening to each side being minimum.
No they are plastic ridge vents and without ridge vents do you simply meet the sheathing on each side to a a point where they just touch the ridge board or truss peak?
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Old 10-13-2013, 10:29 AM   #15
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Roof sheathing


To apeak. Otherwise, a flat spot will exist and the shingles will lie flat. Shingles lying flat leak.

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