Some areas of North America have as many as 100 freeze-thaw days per year and sometimes multiple freezing events per day. In such cases, resistance to freeze-thaw conditions is an important factor to consider when selecting tiles for exterior installation.
While the current testing method requires 150 cycles of freeze-thaw cycling, some argue that is not enough for areas with many freeze-thaw days and potentially multiple cycles per day. Recent Tile Council of North America (TCNA) research and the work of TCNA members support this with failures observed in some semi-vitreous mono-cottura floor tiles only after more than 150 cycles of freezing. While the vast majority of floor tiles in the market will perform well in freeze-thaw conditions, we are always striving to better predict field performance through inexpensive laboratory testing.