How and where can UltraGlasTile be used? UltraGlasTile is incredibly versatile. It may be used in both interior and exterior applications where other tiles might be considered, such as horizontal or vertical surfaces. It is frost-resistant and may be used in wet environments such as showers, pools and spas. An ideal alternative for use in lieu of other more traditional building materials such as wood, metal, stone, brick or glass block — there’s hardly a place in which UltraGlasTile cannot be used.