Using a u notched trowel and embedding the tile into the thinset leaves you with a bed of thinset beneath the tile a little over 1 3 the size of the trowel teeth.
Thinset thickness for large wall tile.
In the case of travertine the back of the tile is smooth so a larger notched trowel wouldn t necessarily be required.
A 3 8 x 3 8 trowel will leave a 3 16 bed of thinset beneath the tile.
Jun 11 2011 the thinset thickness is determined by the size of the trowel used and the size of the trowel is determined by how the back of the tile is constructed and the size of the tile.
Many thinsets max out at 1 4 in a single layer.
A chemical reaction takes place within 30 minutes of mixing that starts the bonding process between the tile and the underlayment or wall.
So a 3 8 u notched trowel leaves a 1 8 bed of thinset beneath the installed tile.