Slate
Layered, matte, and grippy underfoot.
Slate is a fine-grained metamorphic stone that splits into flat sheets. Its cleft surface is naturally slip-resistant, making it a favorite for floors, fireplaces, and roofing.
Telltale traits
- layered cleft texture
- dark gray/charcoal/green tones
- matte finish
Best for
- • Entryway floors
- • Fireplace hearths
- • Roof tiles
- • Outdoor steps
Avoid for
- • Polished elegant looks
Cleaning routine
Daily
Sweep or dust mop; mild stone cleaner with water.
Weekly
pH-neutral cleaner; dry buff.
Deep clean
Apply a slate enhancer/sealer to restore color.
Sealing
Yes — Every 1–3 years
Color-enhancing sealer revives faded slate.
What to avoid
Acidic cleanersOil-based soapsWax buildup
When to call a pro
Call a pro for cracked tiles or significant flaking.
Frequently asked questions
Why is my slate flaking?
Softer slates can shed thin layers — usually cosmetic. A penetrating sealer slows it.
Can slate fade outdoors?
Some slates fade in UV. A color-enhancing sealer revives the original tone.