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MntGoat
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# Posted: 5 Jul 2017 17:24
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I am installing 5/8 plywood roof sheathing to my cabin. The cabin has 2x10 rafters 16 on center with a 12 pitch. The building is 16 feet wide by 32 long.
Any danger in sheathing one side at a time? Maybe I'm overthinking things but I'm wondering if weight on just one side of the rafters would be an issue.
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Greenland South
Member
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# Posted: 5 Jul 2017 17:28
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Do one side then the next. It will go much faster that way.
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MntGoat
Member
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# Posted: 5 Jul 2017 17:32
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That's my plan, but as I began installation it's pretty obvious that there's a lot of weight on only one side of the structure so I wanted to ask.
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toyota_mdt_tech
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# Posted: 5 Jul 2017 17:53 - Edited by: toyota_mdt_tech
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None at all, lay sideways, stager like bricks, lots of nails along joints and lots in the field. Use H clips. Sounds HD, ie the 5/8's especially at 16 in centers. Nice work, I love HD. ;D
Assume rafter and collar ties are all in place? Collar ties every 3rd rafter with 16" centers.
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MntGoat
Member
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# Posted: 5 Jul 2017 18:49
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No collar ties yet. I'll try to post a photo.
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Bushwhacked
Member
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# Posted: 7 Jul 2017 12:12
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Quoting: toyota_mdt_tech Use H clips.
I second that. They are annoying to install as you go, worth it though.
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MntGoat
Member
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# Posted: 11 Jul 2017 14:37
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Why use H clips on 5/8 plywood with rafters 16" on center? Seems a bit odd, I can understand if the plywood was lighter, and the rafters spaced further apart.
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toyota_mdt_tech
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# Posted: 11 Jul 2017 18:56 - Edited by: toyota_mdt_tech
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Ever put pressure on a plywood butt joint with nothing behind it? Like walking on it? Its cheap, easy to do and impossible to add later. Its penny wise vs pound foolish or tripping over a dollar to pick up a nickel.
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Shadyacres
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# Posted: 11 Jul 2017 19:03
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I used H-clips but I had 24 inch spacing with 5/8 . Probably wouldn't need them at 16 inch spacing , but like it was said they are pretty cheap.
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ICC
Member
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# Posted: 11 Jul 2017 19:29
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Quoting: MntGoat Why use H clips on 5/8 plywood with rafters 16" on center?
H-clip also provides correct spacing between panels. Worth it in itself IMO
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MntGoat
Member
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# Posted: 11 Jul 2017 21:36
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I won't be walking on this 12 pitch with a metal roof!
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toyota_mdt_tech
Member
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# Posted: 11 Jul 2017 22:46
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Well, I cant even walk on my 7/12 pitch metal roof, but with 16" OC rafters, I still used H clips.
I would say if you want to cheap out, skip the H clips and the money you save, maybe buy you a 12 pak of soda pop? $6.37
http://www.homedepot.com/p/Simpson-Strong-Tie-PSCL-1-2-R50-20-Gauge-1-2-in-Plywood-Sh eathing-Clip-50-Qty-PSCL-1-2-R50/100375169
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NorthRick
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# Posted: 12 Jul 2017 11:57
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Neither my house, a large shed, or our cabin have H clips. House is over 45 years old, shed is 15 yrs and cabin 10. Shed and cabin have 7/16" OSB sheathing. House is plywood, not sure of thickness. 24" OC trusses for all three.
They have seen significant snow loads over the years. All of the roofs look fine. So, based on my experience, even if they were free, they're unneeded.
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toyota_mdt_tech
Member
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# Posted: 12 Jul 2017 14:49 - Edited by: toyota_mdt_tech
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I'd see if the code requires it.
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MntGoat
Member
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# Posted: 13 Jul 2017 14:54
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I just hate installing them as I am usually working alone.
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toyota_mdt_tech
Member
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# Posted: 13 Jul 2017 16:49
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Quoting: MntGoat I just hate installing them as I am usually working alone.
They are a pain. 
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ICC
Member
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# Posted: 13 Jul 2017 19:38
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IRC Table R503.2.1.1(1) shows 5/8 only needs edge clips or blocking when the span is over 32 inches. However, most builders will still use them to make the panel spacing easy; 1/8" or as spec'd by panel mfg.
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