ceramic tile on concrete floor

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  #1  
Old 01-13-21, 10:54 AM
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Lightbulb ceramic tile on concrete floor

I have a screened in porch with a concrete floor and want to put down ceramic tiles.
The floor was painted and I am currently removing the paint.
How do I get paint residue clean enough to hold the adhesive?
I will be using 6"or 8" X 24" Tiles.
Porch is 10' X 24'.
There will be some dampness .
Can ceramic tile and grout be sealed from dampness?
Thank you for your time and efforts to help me.
 
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Old 01-13-21, 12:08 PM
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Grinding is the most reliable and best way to remove old floor coatings.

Where are you located? Is there ever freezing weather?
No, you really can't seal grout against water intrusion. Solvent based epoxy grout (expensive) like used in commercial applications is probably best at keeping water out but it's not perfect. If water gets underneath the tile and freezes you'll likely have tiles popping up.
 
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Old 01-13-21, 12:26 PM
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Assuming the concrete is dry when installed, you can tile and any water will just flow in, around and over the tile without issue, think pool tile.

Grout is not water proof, like in a shower you have to have a barrier.

The other issue, if you get a crack in the floor, the tile cracks also.
 
 

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