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Old Yesterday, 08:40 AM   #1
dconran
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Subfloor concern

Ive been reading through many of the forums regarding this but im not to sure if any of them answers my question full because i do understand each project is different for everybody.

Im working on a bathroom remodel and the current subfloor is 2x6's (might be 2x8's. I need to remasure everything and im still in the process of demo work right now) that are nailed to the joists. There is no plywood down at all. My concern is that with the new tile that will be placed i need about 1 1/4 at a minimum of subfloor befor tile goes down. A few of the 2x6's need to come out because there damaged.

My question is, proffessionaly is it better to take out the 2x6,s and check the joists for integrity and then lay down 23/32 plywood and then 1/2 in hardebacker? Im concerned about the 2x6s right now because of the height where it sits at with the tub and the wall and also because there not fully level/flat. I can provide pictures of everything once i get back on the job.

Thanks for everyones help.

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David Conran
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Old Yesterday, 09:12 AM   #2
Carbidetooth
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In this neck of the woods, 2x subfloor is often accompanied by post and beam construction. Where are you?

"Better" is hard to determine without more info. I've done some where planks were 1 5/8" or close. In any case patching with modern lumber at 1 1/2" would have undesirable result.

More info will help. Photos speak volumes.

1.What's the age of structure?

2. Damage to 2x is what exactly?

3. What's below said bathroom? Crawlspace? Living Space?
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Old Yesterday, 09:17 AM   #3
dconran
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Thanks for your reply.

1.What's the age of structure?
The home was built in the 50's so i assum the joists are still from that time.

2. Damage to 2x is what exactly?
The 2x's under the toilet are possibly damaged because the toilet is sinking into the floor slightly but i will know better once i pull the toilet off. Theres also other 2x's that are cracked directly in the middle of the board more than halfway through the board and thats causing sqeaking.

3. What's below said bathroom? Crawlspace? Living Space?
This bathroom is on the second floor so underneath this floor is the mainfloor possibly insulation between the floors but i will know for sure Tuesday night.

4. Wheres location?
I am in Glen Burnie, Maryland

I am going to be taking pictures of all this tomorrow to provide better insight to what im dealing with.
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Old Yesterday, 09:33 AM   #4
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We'll wait for the pics. We'll be interest in the joist spacing.
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Old Yesterday, 09:38 AM   #5
Carbidetooth
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An oldie. They usually pose challenges newer structures don't.

Toilet rot can extend into joists. I can almost gaurantee surprises. I imagine iron pipe, old wiring, HVAC weirdness and all that fun stuff. Are you in for the unexpected?

Building up thickness is not all that hard, way easier than reducing it!


We can better advise once more demo and discovery done.
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Old Yesterday, 09:51 AM   #6
dconran
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Yeah im expecting everything to be wrong. So far taking out some of the drywall was no suprises but there was plumbers putty all over a water valve connection which i thought was odd but okie dokie.

Heres 3 pictures of where im at right now. More to come tomorrow night. I certainly look forward to all the help and replies.
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Old Yesterday, 09:59 AM   #7
Carbidetooth
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From what little I can see that's not awful. Toilet removal will tell more. You should be able to tell joist spacing by nail placement. Squeaks can often be dealt with without replacement.

Oh, and it seems that plumber's putty is like silicone caulk in many folks minds. It fixes everything and more is better!
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