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Are there major differences between OSB brands?

2503 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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OSB is not sold as an air barrier (unless things have been changed). When I order lumber, I order for example 2x10-20/16', 12/8', etc. then 1/2" osb 30 sheets, etc. and what the lumber truck drops off is what I use. And have never run into issues....but I am NOT a professional. Ron
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