Will tile burn?

Firing temperatures for ceramic tile products in general are 1800° F. Ragno products are fired at temperatures greater than 2001° F.

There is no relevant test that relates ASTM E84.75, i.e. Steiner Tunnel Test, to measurement of performance of ceramic products for combustion, flame spread or toxicity. Maximum temperatures for conducting this test range only from 1202° F to 1562° F. It was developed to evaluate softer construction materials ranging from carpet to lumber because these products to ignite and may release deadly chemicals when burning. The fact that ceramic products actually originate at much higher temperatures renders such a test in the 1472° F range useless.

Tests conducted within the industry have shown bathrooms with tile tub surrounds that are left standing after the entire room has been burned.