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Need Tile Advice - 4/7/2008 12:21:09 AM   
Hops



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It is my first time attempting to tile. My problem is with water coming in from under the foundation wall and up through an expansion joint. The slabs were poured without the intentsion of the Florida room being built, I think. I have three slabs that join inside the room. The slabs are pitched away from the house for water run off. I have one bad corner that I need to stop the water coming in and then cover that corner with something like leveler to at least get it flat. Any help is greatly appreciated.




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RE: Need Tile Advice - 4/8/2008 9:34:08 AM   
chiabate

 

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You've gotta address the water seepage first. Can you dig down and drain tile/gravel? Even polyurethane won't stick if it never airs out, without dryness your tile's gonna come up no matter what else you do.

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RE: Need Tile Advice - 4/9/2008 1:34:18 AM   
Hops



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I can't dig under the pads. I guess my question was, is there anything that I can put over that part of the floor to prevent the water from getting to the tile?

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RE: Need Tile Advice - 4/12/2008 7:02:35 PM   
deadeye1340?

 

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Where does the water come from?  Is it a lawn sprinkler or something to that tune?  What is on the exterior side?  I would approach this problem from the exterior first and do what ever it took to stop the water.  Then get the inside good and dry and treat it too.  Water is amazing, it'll just about screw anything up.  No matter how fast or slow it runs.  Outside of everything I just typed, you could build a subfloor on the slabs, but you'd need to use stainless stell as the joists, so that no water reached your wood framing, hardy backer or mud for the tile.  Good luck!

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RE: Need Tile Advice - 4/13/2008 4:40:11 AM   
Sandhog


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There is a solution but I believe the cost may be prohibitive in your case.
Underground we sometimes use chemical grout to stop water infusion through the conctrete lining of the tunnel.
It comes in a liquid form with a catalyst and an activator,pumped througha hole drilled into the concrete which a packer has been placed.It can be pumped with a paint sprayer.I dont really think its a DIYers job,but there may be someone in your area that does it.
Google "chemical grout"

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RE: Need Tile Advice - 4/13/2008 7:34:08 AM   
itileman


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+1 to all above.

My .02 - you have to solve the water seepage first. Check your outside perimeter for negative drainage first. Check your rain gutter downspouts for proper drainage away from the house. Also check the possible flow of water from the yard going to that corner - you may have to re-route it.
The chemical grout plan might work, or it may just move the water seepage to a new location in your foundation.

Most of the fixes I've done have been with simple exterior drainage. Worst one involved digging out around the foundation and installing a drain on the uphill side of the house.

In any case, unless the seepage problem is solved, tiling will be a waste of time & money.

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RE: Need Tile Advice - 4/14/2008 8:33:31 AM   
Hops



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The water is rain water. It collects outside that corner of the room because the concrete pad slopes towards the room and the water is seeping between the pad and the foundation wall. Or it is coming in the expansion joints. Thanks for all the help.

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RE: Need Tile Advice - 4/16/2008 12:25:16 PM   
chiabate

 

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There are squares that will elevate tile up from the floor level, problem is that water has to breathe before the microbes start making it stink.

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RE: Need Tile Advice - 4/17/2008 8:28:14 AM   
Hops



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I forgot to mention that those pics were taken after 4-5" of rain that weekend. It doesn't happen alot, but here in FL it does happen. Do you think it would be enough to just run a bead of silicone on the inside and outside of the foundation wall where it meets the concrete pad, to stop the water seepage?

< Message edited by Hops -- 4/18/2008 1:07:34 AM >


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RE: Need Tile Advice - 4/18/2008 9:59:05 AM   
chiabate

 

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I would suggest trying hydraulic cement instead. Once you have less than an 1/8th" gap, you can run neoprene (roofing supply, or home centers in caulk tubes). If it's more than an 1/8th, the shrinkage will pull away. Silicone is much too delicate, polyurethane way more expensive. Either won't do a thing if there's insufficient air on both sides for proper curing.

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RE: Need Tile Advice 6/15 FINISHED - 6/15/2008 9:56:52 PM   
Hops



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I want to thank all you guys for helping answer my questions. Here is the floor, I finished it yesterday. Thanks again.


< Message edited by Hops -- 6/15/2008 9:58:07 PM >


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RE: Need Tile Advice 6/15 FINISHED - 6/16/2008 6:34:22 AM   
chiabate

 

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Looks good, congrats. Looks like I might finally be able to post pix as well.

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