900 x 600 Brazilian Black Slate
The bad I think....we are currently having "issues" with the large format slate flooring not sticking (yes, sad but true....never been heard of before in the tiling world until "The Conlon House" but that damn slate just won't stick!)
the variation in colour isn't as pronounced as in this pic,the tiles were wet,
the lighter shade of grey is the true colour
Several brands of fixative have now been tested all with the same result - tiles don't stick!
We are thinking that it's due to the heat coming in through the huge south facing windows and sky lights.....sounds implausible to be fair, this is Ireland after all, but it can't be ruled out!!
Today's experiments are, 1) priming the back or each individual tile with a bonding agent and 2) laying a couple of tiles in the darkest, coolest area of the kitchen as a further "test" to see if sun/heat is really the cause of the problem. Will check on the progress tomorrow evening....keep your fingers crossed they've stuck!!
It's not all bad I suppose, I really like the tiles and am happy with my decision to use them extensively on the ground floor....now if they would just stick...is that too much to ask?!!