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Slate

Stone slabs cut from slate rock are a traditional construction material for floors and walls. Split surfaces have a rougher texture than honed finishes.

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About Slate products

Slate stone slabs can vary in color and pattern, so a small sample may not represent the full surface of a finished floor or wall. For a honed slab beside cabinetry or another tile finish, assess a larger sample under the room's planned lighting. Joint placement also matters: a slab layout should account for corners and openings rather than leave narrow cuts at visible edges.

Slate slabs

Slate products specified as wall slabs need an installation detail that accounts for their weight. In the United States, exterior wall installations must meet applicable local building code requirements, including attachment provisions. The contractor should confirm that the backing and attachment system are suitable for the selected slab dimensions before installation begins.

Can slate on walls be used in a shower?

Confirm that the slab is approved for wet areas and specify a waterproofing system behind it. Sealer does not replace waterproofing, and the setting material must be compatible with both the stone and the substrate.

What should I check for slate patio paving?

Ask for documentation covering exterior use, freeze-thaw resistance where relevant, and slip performance when wet. A slate paver or slab also needs a base and drainage detail suited to its thickness and the expected traffic.

How should slate be cleaned and sealed?

Use a cleaner formulated for natural stone, following the manufacturer's dilution instructions. Check whether the selected slab needs sealing, and test the recommended sealer on an offcut because some products change its color or sheen.