Canam82 t1_ixlxt4a wrote
Professional tile setter here. A picture would be very helpful. As far as adhesives go, you'll want a modified tile mortar with a latex additive.
Rgeneb1 OP t1_ixm0dvf wrote
Sorry for double posting. For the adhesive, something like this?
Probably a stupid question but most products say floor and wall, does ceiling need something different or is it the same?
Canam82 t1_ixm1i8n wrote
Ceilings are just like walls except they require extra gripping power.
You want:
https://www.lowes.ca/product/mortar/mapei-keralastic-757-l-premium-grade-flexible-mortar-latex-additive-67992?store_code=3708&cq_src=google_ads&cq_cmp=11543255263&cq_con=111377415086&cq_term=&cq_med=pla&cq_plac=&cq_net=g&cq_pos=&cq_plt=gp&&cm_mmc=paid_search--google--shopping_aw_lia_generic_storage-_-71700000075235897&gclid=CjwKCAiAyfybBhBKEiwAgtB7fuiXnkOrY9BcBhPDyd0Q502tTlg_lyvVR0avSCniGlwcmCWCTwRgwRoCsDQQAvD_BwE&gclsrc=aw.ds
something like that added to this
Rgeneb1 OP t1_ixm225p wrote
Perfect. Thank you.
Canam82 t1_ixm366t wrote
You may be able to force a bunch of mortar into the crevice and wedge a 2x4 to the ceiling tile. after 24 hrs it should hold.
bms42 t1_ixr161s wrote
Did you notice that it's the backer board itself that's sagging, not the tiles? OP is going to have to figure out how to secure that to the joist(s) and IMO any kind of adhesive would be dodgy. I'd want mechanical fasteners involved in that fix personally.
Rgeneb1 OP t1_ixr4k04 wrote
Not at home to check just now but I don't think so. Looking through the crack it looked to me like the tiles were glued straight onto a board, that looks fine. You can sort of see the glue stretching but still holding to the board and tile. Does that make sense? The plastic coving at the front is helping keep the tiles in place which is maybe why it looks like the board is sagging in the pics. I'll know more when I take the tiles off to clean it and refix on Monday but I really hope you're wrong.
At the moment it's just propped into place with a bunch of empty amazon boxes and I'm not moving those until I have the time to work on it at start of next week.
Canam82 t1_ixur7yw wrote
Yeah, you're seeing the tile trim. I've seen this before where whoever installed the tile used pl Instead of mortar. I'm guessing heat and moisture slowly stretched the pl out to what you see.
bms42 t1_ixv5pwo wrote
Ah yeah, you're right. Mastic in a bathroom is bad enough, but on a ceiling? That's crazy.
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