Gallery Playlist 17 Videos Where does Garrdal get sealed? No exposed sealant Grooves and Ribs Spanish captioned Easy Installation Spanish Installation Install instructions :27 Install instructions :47 Install Instructions 1:27 Why don't every store stock Garrdal? Not all dealers know what they sell. Designed for shingle roofs. Why other retrofits fail. Plastic vs metal. Upper keeps sealant out of the elements. 12+ & concentric pipes Garrdal12+ High Profile
