Information About Brazilian Slate

As slate experts and having created a huge range of products from slate since 1984, the team at Ardosia have an in depth knowledge of Brazilian Slate.

Our slate information page provides you with the basic details about slate but if you would like any further information, just ask as we are always happy to help.

How does slate compare to granite?

Although granite is available in a larger variation of colours compared to slate, granite is typically more expensive. Granite is a lot more porous than slate meaning it stains more easily, making it a high maintenance product. In some cases granite needs to be treated to prevent water intrusion and staining from liquids. Slate requires much less maintenance due to its lower porosity.

Does slate break or split easily?

The compressed strength of Brazilian slate is very strong and will not break or split easily.

The composition of Brazilian slate is similar to a sheet of plywood and is made up of many compressed layers laid down over millions of years.

Is slate available in different colours?

The colour of the slate is determined by the area from which it originates but even within the same quarry, slate can vary in shades. 

  • Brazilian slate is graphite & blue grey
  • Welsh slate is grey & purple
  • Cornish Delabole slate is blue grey
  • Spanish slate is blue black

Does slate absorb water?

Slate has a very low water absorption index making it almost completely waterproof. This is one of the main reasons slate is a preferred material for roofing slates, cladding, tiles in wet-rooms, shower trays & counter tops in kitchens.

Slate is very strong, its structural strength leads to very low water absorption, tested absorption is 0.03%