Large format travertine install

This is a large format travertine tile install we just completed in Romulas Mi. This install consisted of approx. 500 sq ft of 18x18x1/2 travertine tile.
The floor prep consisted of removing the old vinal/luan floor and installing an additional layer plywood to the subfloor, we then laid the permabase cement board in a layer of thinset and screwed it down and taped the seams.
The floor was then checked for dips and filled accordinly.
The tile was installed with Laticretes 4XLT medium bed thinset and grouted with their Permacolor grout.