Manufacturer Ingredient Disclosure

Material Ingredient Guide – Ingredient disclosure is another key facet of sustainable building certifications. Metropolitan Ceramics’ was again a driving member of the group publishing the Material Ingredient Guide for tile in 2021. This guide is an industry first, disclosing ingredients for tile as an industry.

Material Ingredients Guide (Industry Wide)


Ironrock is a participating manufacturer in the Tile Council of North America (TCNA) Material Ingredient Guide (MIG). The MIG is the result of a North American tile industry collaboration, led by WAP Sustainability through the support of TCNA and its members. It is a resource for ceramic tile, mortar, and grout manufacturers to use when providing the content and chemical makeup of their products or “material ingredient transparency”.

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MIG Industry Wide uai

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