Asked on Nov 16, 2013
Prep for tile - big gap to overcome....
I'm stuck- don't know how to prep for tile in this unique situation. I have a gap in my slab (original slab with a newer slab from an addition butting up to it). I don't know what to do to properly prep for tiling my foyer. The gap is 1 inch wide and 4 inches deep; it goes across the whole foyer (4 feet). There is a piece of foam in it (see pic, I excavated some of it but stopped to post this to see what to do). What is the best thing to do to properly prep this for a tiling job that will last forever (i.e., not crack!). Thanks in advance