Surface for tiling
The house has old plaster walls with an orange peel finish. We want to leave it where we can. As a part of the remodel of our kitchen, we will be doing some kind of tile for a backsplash. Is there any reason I have to remove the plaster to get a flat surface for the tile? I am hoping I can simply trowel over it and the tile will still lay flat with the mortar under it.