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Yes, but if you use sodium chloride on your roof, you'll soon run into trouble with your shingles. While calcium chloride does melt ice, it can also damage your roof over time. It can corrode your roofing nails, which leads to exactly the same problem you would have with ice dams: loose shingles.
Also know, is Roof Melt safe for shingles?
Use Roof Melt tablets to reduce snow and ice buildup that occurs on your roof, typically on the eaves and in gutters. The tablets are specially formulated with calcium chloride so they won't harm your exterior like products such as rock salt, which could rust your gutters and damage shingles.
Keeping this in consideration, does Ice Melt ruin shingles?
Putting rock salt and ice melt directly on your roof will damage shingles, but by filling the socks with salt and ice melt, tying them off and sticking a few in your gutters, it will help clear them out. While it's rarer, ice damming can also occur on roofs without gutters.
Calcium chloride is the best salt to use on ice dams, according to handyman Glenn Haege. It is not as likely to stain or cause corrosion as sodium chloride, but it can damage wooden gutters.