I have a patio that has an old cracked concrete slab that I would like to lay tiles on. The cracks are surface cracks and probably only about 1mm or 2 deep at the most. I have checked the slab with a level and it appears to be level. I have fallen in love with Travertine and found an amazing quote but its for tiles - can you put tiles on a cracked slab? I thought you would need to use pavers? Also how do you lay tiles on concrete? And how do you tile around a column? My patio rather annoyingly has columns which seems super daunting for a first time tiling/ paving job