Are these tiles rated for exterior use on a roof in a cold weather climate?

Our 5/8" Evolution Rubber Tiles can be used outdoors on a rooftop in any climate, whether cold or hot. Since these products are made from rubber, they will expand and contract with the outside temperature. We do recommend placing a 5/8" thick expansion gap around the floor. To prevent expansion and contraction from happening, we would recommend gluing the tiles down with a polyurethane adhesive.