Replies

1. 
   trimmaster | Dec 08, 2002 10:57pm | #1

   From what I have experienced from remodeling is that it is easier and just as easy to rip up that 1/2" and start anew.  that way you don't have to fight all of the problems and mistakes that someone else made.

1. 
   steamdriven | Dec 09, 2002 07:57pm | #3

   Thanks

2. 
   Piffin | Dec 09, 2002 04:27am | #2

   For ceramic tile you need a double layer anyway but what you have to start with is worthless - worse than worthless because it is confusing you.

   A floor system is not just in the thickness of the subfloor. The connection between it and the joists needs to be good too. That is why a glued down subfloor has fewer squeeks and the total system is rated higher. I am betting that since this is in humid Florida, some of your existing sub is not only laid wrong but has begun to rot too, from the bottom up where the source of the moisture is.

   Take it all up and then you can see where the bad joists are too, and repair them, treat for termites, etc, and glue down a new 3/4" sub. Then overlay that with denshield or another 1/2" underlayment, glued and screwed @ 6-8" OC

   Now you've got ####sound solid floor system that the tiles won't bounce, crack, or lift off of.

   .

   Excellence is its own reward!

   "The first rule is to keep an untroubled spirit.

   The second is to look things in the face and know them for what they are."

   --Marcus Aurelius

1. 
   steamdriven | Dec 09, 2002 07:58pm | #4

   Thanks

3. 
   andybuildz | Dec 09, 2002 11:37pm | #5

   Jeff,

      I usually tend to overdo things to be safe. If I were you I'd remove what you have now and use PL Premium glue ontop of each joist as you drop the plywood down. Personally 3/4" is fine but I prefere a dbl layer of 1/2"  using "screws" to fasten the plywood then I like using Wonderboard rather then any other CBU. Now ya have one solid floor. Course you could do a mud job over wire mesh if you want.

   Be a wall

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                                            Andy

   You don’t complete your inner work before you do your outer work. Nor do you say, "Well, the hell with the inner work: I’ll go do the outer work because it’s so important and pressing." That’s not conscious either. The conscious thing is the simultaneous doing of both. "Ram Dass"
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