Back Buttering

[Martino]

Should i only back butter porcelain tiles, and can someone tell me why do this and not every tile?

 

[Del W]

Back butter all floor tiles,you should be looking for 100% coverage.

 

[doug boardley]

I back skim all tiles, apart from sheet mosaics, I back butter if there's indiscrepancies in the substrate and areas need padding out a little.

 

[White Room]

Some floor tiles have a deeper profile so would struggle to have enough adhesive depth to be fixed properly so as above back skim all tiles...

 

[Peter]

I would back skim anything over 300x300.

 

[cam_low]

As above with Wingn, I back butter everything over 300x300, I back butter every floor tile also.

 

[Andrew]

I tired a slightly different method today to my normal back buttering, after watching another tiler use it and discussing it with him. Notched floor and back of tiles (600 ceasar stone)8mm on floor 4mm on tile and cross bonded, the sub floor was slightly out and this method made light of it.

 

[doug boardley]

I tired a slightly different method today to my normal back buttering, after watching another tiler use it and discussing it with him. Notched floor and back of tiles (600 ceasar stone)8mm on floor 4mm on tile and cross bonded, the sub floor was slightly out and this method made light of it.

my concern there is the potential for trapping air pockets Andrew and therefore not getting a solid bed.

 

[nybor62]

all ways back butter large formats ,

 

[Divad]

I back skim all tiles, apart from sheet mosaics, I back butter if there's indiscrepancies in the substrate and areas need padding out a little.

What are indiscrepancies?

 

[doug boardley]

What are indiscrepancies?

if the wall isn't perfectly flat and there's maybe a dip or two in it

 

[doug boardley]

Just for clarity, I've always called trowelling back of a tile with serated edge "back buttering" and trowelling it with flat edge "back skimming", if that makes sense

 

[Perry]

I tired a slightly different method today to my normal back buttering, after watching another tiler use it and discussing it with him. Notched floor and back of tiles (600 ceasar stone)8mm on floor 4mm on tile and cross bonded, the sub floor was slightly out and this method made light of it.

Also most adhesives have max deph of about 5 mm as was said don't cross bond no air pockets solid bed

 

[Andrew]

It was meant 8mm 4mm on tile 4mm on floor. And adhesive was good to 12mm, as i said the floor was a little out and the extra few mm got me over it.
regarding the air pockets never gave it a thought, I think I shall be returning to my tried and tested!

 

[Perry]

It was meant 8mm 4mm on tile 4mm on floor. And adhesive was good to 12mm, as i said the floor was a little out and the extra few mm got me over it.
regarding the air pockets never gave it a thought, I think I shall be returning to my tried and tested!

What adhesive was that?