new subfloor joist and subfloor support

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Old 07-24-15, 06:46 PM
A
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new subfloor joist and subfloor support

Hi all,
I was reviewed by a home inspector and told that a new subfloor joist and subfloor support needs to be installed, due to previous moisture damage.
There is no floor sagging.
Two questions:
1. Since there is no sagging, I understand that I can just sister a new joist against the existing one, and it doesnt need to span the entire length. is that true? So this means it doesnt need to rest (either side) on a post, it just needs to be fastened to the old one?

2. I can't find what "subfloor support" means. I can go back to the inspector and ask him what that means, but figured maybe someone here would know and reply sooner.

thanks a lot in advance for any advice
Scott
 
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Old 07-24-15, 08:57 PM
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Hi Scott,

I take it by subfloor joists, you mean a joists. I'm not sure what he means by subfloor support, but I suspect he means blocking. Blocking is a piece of wood that goes perpendicular between the joists that supports the ends of the subfloor. Someone repaired the area and the subfloor lost its t&g or is shorter than the original sheet.

1. Yes, that's true. Make it as long as possible.

2. A few pics of the area would be helpful. I'm thinking blocking per above.

Jaz
 
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Old 07-24-15, 09:44 PM
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Thanks Jaz.
Yes I just meant "joists" , I didnt need to add the subfloor word as well.
So when you have a sister joist that does not rest on a post, I suppose it's still relying on the older post for the vertical support of any weight placed above it? So I guess the weight is laterally transferred to the older joist, and it handles the load.
 
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