Fire ratings are required by the Building Code to ensure that if a building is on fire, its construction materials do not significantly increase the spread or intensity of a fire.
As an architect, it helps to be aware of the fact that fire safety requirements do not apply for ceramic and porcelain tiles. They are a fire-resistant material, most being manufactured at over 1000°C. If a lit cigarette is dropped on the floor for example, in most circumstances it will not do any damage to the tile. Even hot kitchen pans or skillets will not scorch or melt the surface of ceramic and porcelain tiles.
During a fire, many household products let off dangerous toxic fumes in the form of VOCs (volatile organic compounds). However, being fired at very high temperatures means ceramic tiles do not exude VOC emissions. During manufacture, any organics that might be present in clays or binders are completely burned away. As a result, the final product is inert and no VOCs can be emitted. Aside from this, quality porcelain tiles contain no sealants, waxes, or other chemicals that could release VOCs into the environment.
Tiles are perfect for all areas of the home from living spaces to bathrooms, entrance ways, and exteriors. The perfect flooring to continue into exterior spaces and create beautiful indoor, outdoor flow. Interestingly porcelain and ceramic are also excellent options for exterior cladding for the reasons aforementioned and can create a stunning, and original result.