ICE DAM EMERGENCY SOLUTION! The Viper Ice Guard Kit includes Viper Elite (1 gallon liquid potassium acetate), ViperNAAC (10LB sodium acetate shaker jug), and six Viper Roof Roll's (calcium magnesium acetate filled sleeves) to eliminate an existing ice dam or ice buildup and prevent it from happening again throughout the winter. All products are chloride free / salt free and will not damage roof components, vegetation, concrete and are pet friendly. Viper Ice Guard is the ultimate Ice Dam solution, spray - sprinkle and set using application rates per suggested instruction! Viper Ice Guard is noncorrosive and can be used on your sidewalks and driveways as well.