Slate Floor Always Dirty. It is also gentler on the floor than a bristle broom, so it is more efficient for use on slate flooring. On the other hand, some tiles will seem like they're impossible to keep clean: They're always either dirty, or they become dirty really quickly after cleaning.
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Everyone said oh they are so expensive don't get rid of them. Waxes and polishes leave a smeared look on the floors due to the residue that they leave behind. Best thing we could have done.
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In most cases, mopping with warm water and plenty of soap will be enough to remove the dirt. A po of our house put in slate floors in the kitchen, pantry, laundry room, powder room, interior hallway and foyer. These small particles can act like grits of sandpaper, wearing down the protective sealer and making tiny scratches in the tiles every time the floor is walked on. With a broom, sweep up all the dust and debris and gather in a dustpan.