The tiles are frost-proof due to the way they are fired, but we still recommend that you keep the table in a closed room in winter, as the weight of snow frozen into ice can damage the table. If you don't have space for this, then put the table up in winter and wrap it in special foil. The table frame is collapsible.
We travel to Morocco two or three times a year to have these mosaic tables made in Fes and Marrakesh. We always work with the same artisans, who we get to know better over the years.