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-   -   Repair Small Portion of Bathroom Subfloor (http://www.diychatroom.com/f5/repair-small-portion-bathroom-subfloor-16303/)

lost80s 01-28-2008 05:36 PM

Repair Small Portion of Bathroom Subfloor
 
I need to repair the subfloor in by second floor bathroom. Water damage has rotted the floor beside the tub, but not under the tub. I have fixed the leak. My question is - Is it proper to cut parrallel to the joist, and just replace the long slim piece that is rotten, or am I supposed to have the flooring go across several joists? The joists in my bathroom are 9" apart, the rotten part is right outside.

Example:

Tube Here [ tube ]
Joist#1 > --------------
(rotten wood here) <--- Can I cut here and nail new floor?
Joist#2 > --------------

charlesmd 01-28-2008 08:26 PM

If your just filling in a small area (non structural) you could use some sandable floor leveler(O Henrys) to fill a small strip.It depends on what your putting on top(floor covering). If your doing a whole new floor in vinyl, go with O Henrys and then lay down some 1/4 inch Luann subfloor.Then go over with vinyl. If its an actual hole in the floor, you may want to consider
redoing the floor w/1/2inch plywood as a subfloor then take it from there.???

lost80s 01-28-2008 09:05 PM

Quote:

Originally Posted by charlesmd (Post 93020)
If your just filling in a small area (non structural) you could use some sandable floor leveler(O Henrys) to fill a small strip.It depends on what your putting on top(floor covering). If your doing a whole new floor in vinyl, go with O Henrys and then lay down some 1/4 inch Luann subfloor.Then go over with vinyl. If its an actual hole in the floor, you may want to consider
redoing the floor w/1/2inch plywood as a subfloor then take it from there.???

There is a hole. I am having flooring installed professionally in about two weeks, and need to repair before then. The hole is about 4ft long and from one joist to the next. My concern is not being able to put down new subfloor over at least two joists - do i need to worry about the strenght of the floor for this reason? I will post pictures soon

mike costello 01-29-2008 05:52 AM

Putting patch in instead of wood is a bad idea.

If you cant get to two studs you will have to sister some in.The area in front of a tub needs to be structually sound.

What kind of floor are you putting in? Will the installer be putting in a subfloor?

lost80s 01-29-2008 11:23 AM

I dont understand the term "putting patch in instead of wood" - (forgive my ignorance). Just so I am clear - I am working on my subfloor.

What I have is plywood. I want to put that in place of the hole - just not sure how may joists is recommended to nail it to -- as it stands now (and to avoid taking out the toilet) I plan to nail the 4ft x 3ft plywood to just two joists.... Im not sure what to do at the wall (where the subfloor goes under the wall - there is no rot there.


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