The issue I have that 50% of the floor was already covered with tile about 400 sqf, I have to add 350 sqf of black + white "chess board" tiles.
the size of the current tile is 8x8 and looks like was installed long time ago with grout gap 1/4" or more
I want to add tiles on top of old vinyl tiles as they are were difficult to remove.
I could be wrong but if I remember correctly (probably not) the old 8x8 vinyl tiles were asbestos so you are correct to just go over them and not remove them. I don't believe you can get an 8x8 ceramic tile and if the others are quite old they wouldn't come close to matching. But again I might be wrong. Some one will be along to let us know.
found tiles Glazed ceramic on spec list mentioned for light commercial floor.
vinyl tiles I have are 12x12 only ceramic 8x8.
I will post photos later as now I have another issue to decide about how to make a transition from old to new area as I have mentioned the grout gap in the old install is VERY wide even may be 1/2"
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