Wood rot and open web floor trusses

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RSMichigan

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Hello All, I had a long running toilet leak that caused the subfloor to rot around it. I have cut out the subfloor and removed all of the rotten subfloor and I am at the point that i need to box in the area but I am at a loss because I have open web floor trusses with one of the open web trusses being 6 inches back from the wall that I had to cut for removal of the affected floor.

My question is, how do box in the area of the floor that I need to replace since one of the trusses is past the point that I can the subfloor to?
 

joecaption

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Got some pictures?
Trusses would be used to build a roof, not sure how they would come into play.
Guessing you really mean engineered floor joist.
Was the subflooring cut out even with the bottom of the bottom plates in the walls?
If so you can use 2 X 4's screwed under the bottom plates to support the new subflooring.
 

RSMichigan

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Got some pictures?
Trusses would be used to build a roof, not sure how they would come into play.
Guessing you really mean engineered floor joist.
Was the subflooring cut out even with the bottom of the bottom plates in the walls?
If so you can use 2 X 4's screwed under the bottom plates to support the new subflooring.
Sure here some pictures
 

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bud16415

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I would slip a 2x6 in under the flooring for a nailer. Cut it as long as you can and position it back under the wall also. Put some liquid nails on it and C-clamp it up tight and then screw it to the sub floor from above and also at an angle to the wall bottom plate.



I use clamps for holding stuff tight while I put the deck screws in. It is an extra step but when I try and hold something and screw it like that I get a gap and a lose connection.

And Welcome to the forum. :welcome:
 

Sparky617

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Got some pictures?
Trusses would be used to build a roof, not sure how they would come into play.
Guessing you really mean engineered floor joist.
Was the subflooring cut out even with the bottom of the bottom plates in the walls?
If so you can use 2 X 4's screwed under the bottom plates to support the new subflooring.

Floor trusses are like roof trusses, made up of 2x4's with diagonal bracing. Engineered floor joists to me are the wood "I-beams" with 2x4 top and bottoms with OSB webbing in-between. It could just be a regional description difference though. Nice thing with the floor trusses is the ability to run your plumbing, HVAC and electrical without cutting into the truss.
 

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