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-   Roofing and Siding (http://www.houserepairtalk.com/f34/)
-   -   OSB vs Ply (http://www.houserepairtalk.com/f34/osb-vs-ply-14926/)

jmc0319 10-18-2012 05:28 AM

OSB vs Ply
 
I am in the process of building a chicken coop. Question is what is best for the roof, OSB or ply. I will be putting down felt then shingles. Pros and cons of both would be great. The roof area is only 10 x 10.

jmc0319 10-18-2012 05:31 AM

Follow up question is whether or not either can get set before installation.

oldognewtrick 10-18-2012 05:55 AM

Quote:

Originally Posted by jmc0319 (Post 78577)
Follow up question is whether or not either can get set before installation.

I do not understand your follow up.

Ply is more rigged and OSB will absorb moisture in the air.
If it were me and I wanted it to last I would use Advanteck.

nealtw 10-18-2012 07:44 AM

I think he ment wet;
We use 7/16 osb it has a rough side, better to walk on, it will swell if it gets alot of rain.

Daryl in Nanoose 10-18-2012 09:13 AM

I use regular plywood when I can but I always get the the felt and paper on right away:)

jmc0319 10-18-2012 09:49 AM

Yes I meant WET sorry

nealtw 10-18-2012 10:22 AM

Not alot of difference for a small roof, just don't cheat the thickness.

jmc0319 10-18-2012 11:25 AM

Thanks all

jmc0319 10-18-2012 05:57 PM

Neal- if the osb gets wet and swells will it dry and flatten out or is it ruined? Im afraid I have some that got wet today.

nealtw 10-18-2012 06:34 PM

It will dry out but it will stay swelled for the most part. If you have "H" clips for joining them, just get some bigger ones. Not needed for 16" on center rafters but for 24" on center they are required. Or you can just nail a block in behind the 2 peices to stop the edges from bending when walked on. Don't forget to space them a little 1/16 sides and 1/8 ends.


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