Yes, but if you use sodium chloride on your roof, you’ll soon run into trouble with your shingles. Instead of using sodium chloride, many people use calcium chloride. While calcium chloride does melt ice, it can also damage your roof over time.Click to see full answer. Likewise, people ask, 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.Secondly, is salt bad for shingles? It rusts nail heads: Rock salt doesn’t hurt asphalt shingles much, but it can cause the nails holding your shingles to the roof to corrode. Salt then gets in through the porous surfaces and accelerates freeze-thaw damage in much the same way as with concrete/asphalt driveways. Accordingly, 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.Do roof pucks work?You toss these pucks on the roof, behind the ice dam. This water mixture will then drain down the roof to the ice dam and work its way through to the gutter or edge of the roof creating a tiny path for water to drain away. You won’t see much happening, but they do work.