The mortar is to even out forces on the tray. The tray will not necessarily be pefectly flat so if you just sit it on ply it’ll likely crack.
Sound like the ply has wicked moisture out of the mortar mix and it’s gone dry. Guess the question is.... do you feel lucky?
Probably be alright. Go...
Spot on.
My annual re-visit to he forums, Merry Christmas all.
Sorry Agile, the sticky was put together to cover the basics only to answer the FAQs.... to cover everything the tiler would need to know would take ages to put together.
No, where you've got movement you would use a flexible seal. Where you have corner with no movement, grout is fine if you're not talking about a wet situation. Let me give you an example... okay we're talking about a uPVC window; when a plasterer skims to a uPVC window, does he finish it off...
Oh no they don't (said like I'm in panto). :D The uPVC frames are inert and fixed to the same walls as the tiles, they should not move and consequently lose bond with the grout. Looks better to have grout against the frame as a silicone bead stands out more and looks grubby over time.
Yeah...
Very rarely happens. Not saying that doesn't happen, but very rarely and especially so when using cement based adhesive. Usually confused with the discolouration found from a few months use of soap/shampoo.
Yesterday I found out a real nice guy I know died on Saturday. Just found out another diamond geezer hung himself last night. Not putting me in the Christmas spirit. :( Why's it always seem to happen at Christmas?
Doesn't mean to say it's right. Why use silicone against a PVC window when there's no moisture or movement issues to be controlled?
If you can tile properly, then a tile/tile internal corner can be hidden with grout, if cutting skills are lacking then yes it can be easily covered with...
(i) Just grout- it shouldn't be moving anywhere so no flexible seal should be required.
(ii) Tile to tile - grout in dry areas, silicone in wet areas or where you suspect a little movement. Tile to door frame - grout.
You do know the Sun and the Moon are the same thing don't you? And there's more than one? The Suns are switched on and hot in the day then at night are turned off and so go cold, we call them Moons. They then get switched back on in the morning. Possibly someone left the Sun over Joe's house...