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A guide to natural stone tile flooring

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Vitreous: This is the standard absorption level for flooring tiles and these materials are generally considered appropriate for most low to mid traffic indoor and outdoor applications.

black stone flooring

 

Impervious: These materials are resistant to the absorption of liquids and thus will be easier to maintain. They are often used in high traffic commercial applications.

stone flooring types

 

Specific Tile Absorption Rates: In general, Sandstone is the most porous natural stone material, Travertine, Limestone, and Slate have medium absorbency, and Granite is relatively waterproof. Polished materials also absorb less water than honed or clefted surfaces.

  • Further Reading
  • Stone Versus Ceramic Tile
  • Stone Bathroom Flooring
  • ASTM Standards For Stone Safety
  • GradeSome retailers use a grading system to rate the quality of materials. This can refer to the size, shape, and thickness of the tile, as well as the condition of its surface. Most grading systems have three levels of quality. Grade 1 refers to high quality, uniform materials. Grade 2 consists of materials with minor defects such as chips, scratches, or irregular surfaces. Grade 3 materials have major flaws in size, shape, surface, or chipping, making them appropriate only as accent pieces, or in certain rustic decorative applications.

    Coefficient of FrictionThis measures how slippery various materials are. The higher the coefficient, the more traction a tile will have. This number is especially important in moist environments such as bathrooms and kitchens, as well as high traffic commercial areas. The Americans with Disabilities Act requires that flooring material have a minimum of a .6 dryness coefficient.

    Indoor vs Outdoor RatingSome natural stone flooring materials are more suited to outdoor applications than others. Many of the factors above will determine whether a material should be used in an open air environment. Non-vitreous materials will be subject to staining through dirt and acid rain, as well as cracking when absorbed materials freeze and expand. Stones which have a low coefficient of friction will also pose a slipping hazard during rain and snow storms.

    OxidationNatural stone materials are formed beneath the earth over millions of years, and often contain a variety of disparate elements. Sometimes iron is present in these materials, which can manifest as bright red and amber hues in the surface of the stone. The problem in an outdoor environment is that, those traces of iron can oxidize, a process more commonly known as rusting. This can cause the entire tile to degenerate over time.

  • Marble Flooring Articles
  • Marble Tile Floor Options
  • Pros and Cons Of Marble Kitchens
  • Installing Marble Floor Tiles
  • Benefits of Using Natural Stone FlooringEach piece of stone is a unique creation of the earth, making every flooring application one of a kind.

    The mountain born qualities of the stone can help to reconnect a space with the natural world.

    While there is some debate about the ecological impact of quarrying and transporting stone materials, the tiles themselves are natural, nonpolluting, eco-friendly pieces. Purchasing stones which were acquired locally can cut down on the environmental impact of transport.

    Drawbacks of Using Natural Stone FlooringWith the exception of Granite and some Slate, natural stone is quite porous, and needs to be treated with a sealing agent periodically to protect its surfaces.

    Some polished materials such as marble can scratch easily.

    Some stones are also very brittle, and will chip easily.

    When purchasing natural stone flooring materials it is important to do your research and understand the characteristics of the material you are purchasing. You want to find out whether it will be appropriate for your specific application and how much maintenance it will require. Ask your retailer multiple questions, and get to know the material as much as you can before you make a purchase.











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