Scav54 OP t1_ja181ij wrote
Reply to comment by New_Engine_7237 in Tiling over concrete expansion joint by Scav54
It has a white plastic strip embedded in it. The irregularities come from Thinset that was used to fill the crack a long time ago it seems.
New_Engine_7237 t1_ja18ijj wrote
Saw someone else mention some kind of membrane. Not familiar with that although I have seen Mike Holmes use an orange material that gets thinset to the floor then the tile laid on that.
Scav54 OP t1_ja1a52l wrote
Schluter ditra. Was going to use that but the tile needs to be at least 2x2 which this one isn’t. Might have to change the tile I use
New_Engine_7237 t1_ja1afy9 wrote
Even if your tile comes on the mesh backing? Doesn’t look like individual tiles.
zedsmith t1_ja35574 wrote
Both ditra and kerdi board require at least a 2x2 tile to get the warranty from schluter. Both substrates aren’t stiff enough to resist the point load that could result from weight on small tiles.
When you get bigger tiles, the tiles themselves, and the thicker thinset bed, make for a stiffer assembly.
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