Hi, we're redoing floors throughout the house we just bought (desperately needed -- the 80s carpet was a dingy teal!). After demo, we found the sub-floor has cracks in the bedrooms and living room. The cracks are 1/8 inch or less.
The tile installer was going to use a sheet membrane, but decided on Laticrete Hydro Ban instead, which he said is the preferred method, would last longer, etc...
After application, some of the cracks appear filled in, but the larger ones are still visible. Is that okay?
The installer tells me that while we can still see those fractures, there are no voids, it's one continuous sheet, and it's properly applied.
I thought the material would completely fill in the crack, kind of like filling in imperfections in a cake so the surface of the frosting is smooth. (Never tiled before, so that's the closest analogy I've got!)
Is it okay for him to go forward with tiling or should I request more attention be paid to the cracks first?
(And to make this just a little trickier, I'm checking on this project long-distance, via emailed photos.)
Thank you for any advice and guidance!