Can these tiles be installed on a rooftop under artificial turf and stay outdoors during all seasons?

We don't recommend installing our Vented Grip-Loc Tiles over an EPDM roof since the tiles do have the potential to damage the roof, but people have used them on these types of roofs with much success. These tiles can be used outdoors all year long and are UV stable ensuring the color will not fade drastically in direct sunlight. Since they are vented, they will not impede the draining ability of the turf during rainstorms.