VIPER ROOF ROLL™ is our premium, NON CORROSIVE, solution in preventing ice dam's in the winter. Each box contains four rolls (approximately 21 inches long) that contain CMA (calcium magnesium acetate).
Place the Viper Roof Rolls 12-24 inches above your downspouts or where you generally have ice build up through the winter months. The time released roof roll will release CMA and work from the bottom up so that ice doesn't adhere to the surface creating an ice dam or buildup.
Calcium magnesium acetate is chloride and salt free and will not harm roof components.