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2x OSB enough...Riser/Stage?

post #1 of 8
1/30/12 at 5:35am
Thread Starter 
I'm in the process of putting a 2nd layer of OSB on my sand filled stage and sand filled riser.
My question is simple...
Is 2 layers of 1/2" OSB enough with GG in between?

the reason I ask is because I only have enough GG to do 1 additional layer.
If I do a 3rd layer of OSB I won't have enough GG.

Thanks
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post #2 of 8
1/30/12 at 5:41am
Define enough and your level of OCD, I've built two and three layer risers and stages and have decided that anything I build for myself in the future will be 3 layer. Go with at least 5/8 OSB if not 3/4.
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post #3 of 8
1/30/12 at 5:48am
Thread Starter 
Quote:
Originally Posted by BIGmouthinDC View Post

Define enough and your level of OCD, I've built two and three layer risers and stages and have decided that anything I build for myself in the future will be 3 layer. Go with at least 5/8 OSB if not 3/4.

would it be ok to put a layer of roof felt in between one of the layers combined with a layer of GG?

thanks
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post #4 of 8
1/30/12 at 6:06am
Probably, just don't put the GG on the felt.
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post #5 of 8
1/30/12 at 6:17am
Thread Starter 
Quote:
Originally Posted by BIGmouthinDC View Post

Probably, just don't put the GG on the felt.

Big, sorry, just re-read my question and it's sounds stupid...
what I meant is, can you put 1/2" OSB ( already in place) --> roof felt --> OSB 1/2" --> GG --> OSB 1/2" ?
That would be a total of 1 1/2" of OSB. My clearance now to the soffit would now be ONLY 6' 2".

thanks
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post #6 of 8
1/30/12 at 6:31am
Was "sand filled riser" a typo?
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post #7 of 8
1/30/12 at 6:39am
I think he is planning on 4x15 inch subs on the riser.
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post #8 of 8
1/30/12 at 7:56am
Thread Starter 
No typo...Big is right...I have 4x 15" subs that are on the riser and then will also have 2x 12" subs on the stage.
I guess I love bass

So...I'll stick with 2x 1/2" OSB with GG in between and call it a day.
thanks
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