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        Bathroom Hardwood? Subfloor? Sign In/Join 
        posted
        Attached you will see the floor that is beneath the carpet in our half-bath. I can't figure out what it is. Is it hardwood floors meant to be finished? Is it a kind of subfloor? If they were put in to be refinished, they have now been ruined after someone has stapled carpet to it...not to mention the huge gaps in-between the slats. I need my fellow DIYer's input! We've already bought cement board and floor tile to use in this area. Should we rip up these hardwood slats, lay down a layer of plywood, then cement board, then tile on top? THANKS FOR YOUR HELP!

        Here's a link to a larger picture:
        http://oi60.tinypic.com/ve400x.jpg

        Bathroom Floor
         
        Posts: 5 | Registered: Feb 21, 2014Reply With QuoteReport This Post
        posted Hide Post
        That sure looks like the subfloor. Tell us what it's attached to and the width and thickness of these planks.

        You can not install tile backer direct to planks. Either remove them or install ply over this and then tile backer etc.

        Jaz


        Tile 4 You llc - Troy, MI
        Kerdi shower specialist - Ditra installs - Product-Method suitability consultation. I have NEVER made a mistake, I thought I did once...........but I was wrong!
         
        Posts: 49 | Registered: Apr 18, 2013Reply With QuoteReport This Post
        posted Hide Post
        They are between 3 1/8"-3 1/4" wide. Looks to be attached directly onto floor trusses (no plywood beneath, from what I can tell). Not sure the thickness without ripping one up. Hope this helps with your assessment!

        quote:
        Originally posted by JazMan:
        That sure looks like the subfloor. Tell us what it's attached to and the width and thickness of these planks.

        You can not install tile backer direct to planks. Either remove them or install ply over this and then tile backer etc.

        Jaz
         
        Posts: 5 | Registered: Feb 21, 2014Reply With QuoteReport This Post
        Picture of Jaybee
        posted Hide Post
        Sure appears to be a plank subfloor. It really shouldn't have had even carpet on top of it without having another solid layer.

        If the wood is sound, then skin it with a layer of plywood (min. 3/8") then your backer board and tile.

        BTW, any chance that there is no insulation under the plank subfloor?


        Jaybee
         
        Posts: 10471 | Location: Knoxville, Tennessee | Registered: Sep 27, 2003Reply With QuoteReport This Post
        posted Hide Post
        Strong chance there's no insulation underneath.
         
        Posts: 5 | Registered: Feb 21, 2014Reply With QuoteReport This Post
        posted Hide Post
        quote:
        Looks to be attached directly onto floor trusses


        You're not sure? Can you find out?

        The recommended min. ply over planks is 1/2" if the planks are in very good condition. Use underlayment grade ply. exposure 1.

        So you have a crawl space under there? You should have insulation, cross ventilation and vapor barrier on the ground per local codes for moisture control.

        Tell us more. The type and size of the joists, their spacing and unsupported span of the joists.

        Jaz

        This message has been edited. Last edited by: JazMan,


        Tile 4 You llc - Troy, MI
        Kerdi shower specialist - Ditra installs - Product-Method suitability consultation. I have NEVER made a mistake, I thought I did once...........but I was wrong!
         
        Posts: 49 | Registered: Apr 18, 2013Reply With QuoteReport This Post
        posted Hide Post
        It appears that the floor in question transitions into the hardwood floor at the same height.?
         
        Posts: 907 | Registered: Jan 29, 2010Reply With QuoteReport This Post
        posted Hide Post
        Yes, currently it does.
         
        Posts: 5 | Registered: Feb 21, 2014Reply With QuoteReport This Post
        posted Hide Post
        .....and the answers to the questions asked are....?

        Jaz


        Tile 4 You llc - Troy, MI
        Kerdi shower specialist - Ditra installs - Product-Method suitability consultation. I have NEVER made a mistake, I thought I did once...........but I was wrong!
         
        Posts: 49 | Registered: Apr 18, 2013Reply With QuoteReport This Post
        posted Hide Post
        Apologies Jaz, I really don't know what's under there until I rip out one of the planks. The house was built in the 40s, so there are a lot of areas without insulation, as it was cheaper to pay the energy bill than the cost of insulation in those days.

        I also don't believe there's much crawl space under there as it is on the second floor on the house. Apologies if I had not mentioned that earlier in my post.

        Again, not sure about size, etc. of joists unless I rip it up.

        Thanks! Hope this helps!
         
        Posts: 5 | Registered: Feb 21, 2014Reply With QuoteReport This Post
        posted Hide Post
        You don't have to rip the floor up, remove the toilet. You should have enough of a view to see the make up of the floor.

        This message has been edited. Last edited by: ron45,
         
        Posts: 907 | Registered: Jan 29, 2010Reply With QuoteReport This Post
        posted Hide Post
        You don't even have to remove the toilet to figure that out. You drill a hole and stick a stiff wire or rod down until you hit the ceiling below. Subtract the thickness of the subfloor and that's the size of the joists.

        In the same hole insert the head of a nail and hook to the subfloor. Mark it and that's the thickness of the subfloor planks.

        Report back.

        Jaz


        Tile 4 You llc - Troy, MI
        Kerdi shower specialist - Ditra installs - Product-Method suitability consultation. I have NEVER made a mistake, I thought I did once...........but I was wrong!
         
        Posts: 49 | Registered: Apr 18, 2013Reply With QuoteReport This Post
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