Can I use those roof ice metling pellets on my flat, rubber roof?

Living in Chicago area, we keep getting snow that is accumulating on the portion of my roof that is flat. The coating itself is rubber, can I buy some of those roof melt pellets that you toss up there without it harming the rubber material of the roof? I know calcium chloride (or potassium chloride) are the best at low temps and least damaging for driveways, etc, is it the same for roofs made of rubber?

herts repairing roof