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ok so i have started this thread because of a conversation between me and dan in another thread about the performance of grout and tanking systems in a wet area. i am not trying to be disrespectful or anything like that i just want the correct information bothe for me and the general public. I have been tile a long time and like to think i keep myself up to date with as much technical information as my tiny tilers brain will allow me to store but now my understanding of how grout and tanking systems work has been questioned, so i think its time to put it to the test.
this is the post that inspired the test from a thread called Help! Tiled wetroom floor looks perfect but grout doesn't dry out!.
OP Dan
( You're misunderstanding the word 'waterproof' if you think a tiled wall or floor is impervious to water, surely?
EVERY bathroom wall that's not tanked, fails eventually due to the substrate getting wet constantly when it hasn't been tanked. EVERY bathroom wall that's been tanked, and properly using tape onto the bath or shower tray, NEVER fails due to water ingress.
So the tiles are literally never protecting the substrate from water and are literally just there to take the brunt of the 'weathering' (term used loosely) and cleaning and to give the room an aesthetically pleasing look.
Not meant to come across argumentative BTW.)
the test will be to see how long the grout will resist the water. I will tile the inside of a cardboard box and grout it with standord non modifid wall grout leave it to dry for one week then fill it with water i will let the water sit in the box for as long as it takes for the water to completely penetrate the grout and soak the cardboard background.
l would appreciate any comments and suggestions all input on this thread is welcome.
this is the post that inspired the test from a thread called Help! Tiled wetroom floor looks perfect but grout doesn't dry out!.
OP Dan
( You're misunderstanding the word 'waterproof' if you think a tiled wall or floor is impervious to water, surely?
EVERY bathroom wall that's not tanked, fails eventually due to the substrate getting wet constantly when it hasn't been tanked. EVERY bathroom wall that's been tanked, and properly using tape onto the bath or shower tray, NEVER fails due to water ingress.
So the tiles are literally never protecting the substrate from water and are literally just there to take the brunt of the 'weathering' (term used loosely) and cleaning and to give the room an aesthetically pleasing look.
Not meant to come across argumentative BTW.)
the test will be to see how long the grout will resist the water. I will tile the inside of a cardboard box and grout it with standord non modifid wall grout leave it to dry for one week then fill it with water i will let the water sit in the box for as long as it takes for the water to completely penetrate the grout and soak the cardboard background.
l would appreciate any comments and suggestions all input on this thread is welcome.