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Are there major differences between OSB brands?

2500 Views 5 Replies 5 Participants Last post by  ddawg16
I have a choice of several brands for what I need, GP, Weyerhauser, LP, and something branded as Roy o'Martin. Any one of these better than others or are they all basically the same. I tried googling and got nothing except for some complains about Norbord brand and a page that claims all brands except one (doesn't say which) leak air right through the OSB.

I'm just curios if anyone knows whether some companies use better glues/processes in making theirs than others or if one brand is known to be better.
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Thanks for the replies, all! I'm using it for sheathing, and it will be wrapped. I pretty much figured they'd be more or less the same, regardless of the manufacturer, but was curious if some may be better made than others.

The air-tightness blog post I was referring to is this one:

I know it's not meant to be an air barrier, but the fact that air may go right through it makes you wonder how "good" this stuff actually is.
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