In case you have an air pocket or some selected place in the floor that's not amount or flat With all the encompassing region and you simply screw your backerboard on to it this will create a weak place within your floor. Regularly stepping on that place will, after a while, loosen the screw as well as your floor will move.
It is your floor, fundamentally. In order for you tile on it, then The everyday way which is used is usually to affix a sheet of Durock or wonderboard, or other suitable tile substrate, either one/four" or 1/two " thick directly to that subfloor and afterwards set the tile. It Nearly Appears just as if you're thinking that I am declaring It is really Alright to use Durock as subfloor...not! Rick
You will discover screws produced specifically for cement backerboards. You have to be capable of finding them at any hardware or big box retail outlet. They've got grooves to the underside of The pinnacle that will dig in the backerboard and build its own ‘gap’ by which to countersink The top as it truly is screwed in.
I was not mindful I required to set thinset down before the backerboard. I utilized hardi screws (in all probability greater than essential), but it's going to be an issue on utilizing thinset prior to the hardi board was set into location?
Subfloor by yourself is actually not sufficient guidance for the tile substrate for instance Durock, which provides Certainly no structural assist, and will allow for far too much deflection, resulting in cracking tile and grout failure. Â
Maury P Vargas HEY Roger, sorry for currently being a suffering on the human seat cushion, but in reading through for that twentieth time your detailed instructions you mention the backer screw should not go all of the way by means of joists since “[…] your floor must be [way too thick] on your screws to truly penetrate every one of the way through†but the ones I purchased say on plywood it SHOULD go many of the way by Check out the pic, what do you believe?
Can I place the cement board directly about the outdated tile? If that's so, screwing the cement board down seems like it would be a problem. Exactly what are your thoughts on The easiest method to try this?
We could go into The subject of whether pricey modified thinset is basically required to use underneath your concrete board (it's actually not) but I feel I've had about adequate "discussion" for a single evening Â
There's no ought to put in backer board over a concrete substrate—ceramic tile is usually used right more than concrete, offered the floor is clean and stage.
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I did eliminate the old ½†subfloor and 5/eight†flooring to interchange it with ¾†tongue and groove nailed straight to the joists so the hearth could be beneath carpet degree after tiled so I'm not stumping my toes.... LOL
In this final phase you must tape and fill the joints. It’s a smart idea to utilize a tape which is intended for cement board, as it is suitable for this software. I'd personally only fill the joints that operate during the duration of the cement board for now.
How is that different from anything any of us have been trying to say? It is really what precisely I had been looking to say. Heck, if I had a house where by the floor was "mushy", I might do anything about this even when tiling it absolutely was The very last thing from my thoughts.
You didn’t more info say what you are working with as your tile substrate. Typically you would be wonderful filling that with thinset and setting your substrate about it, nevertheless it definitely is dependent upon what you’re employing.