Hi, I am re-doing my very small kitchen in my unit. I have a tiled backsplash and am wanting to re-tile. I am in the process of removing the tiles and there appears to be different finishes underneath. It is a double bricked building. In some sections it looks like there is cement sheeting? I am wondering if I can get away with sanding that before re-tiling? In a higher section of tiles I am wondering if it was rendered and some of the render had come away with the adhesive? And whether I should render it again before re-tiling or whether I could use something else. And lastly along the window sill there seems to be some kind of gritty substance, some of which has come away when taking the tiles and adhesive off. It is also uneven where the two bricks join. How can I make this area smoother before re-tiling?
Thanks!



