Union Corrugating 8 in x 20 ft Copper Roll Flashing GFCI Breakers Coverage Per Bag: 110 Specification Details Material Ceramic Coverage Per Bag: 110 Engineered for expansion fittings with full flow design and superior resistance to corrosion 01 Warranty None For Use with Vents Yes For Use with Windows Yes For Use with Roofs Yes For Use with Doors Yes CA Residents: Prop 65 Warning(s) No For Use with Egress Windows Yes For Use with Gutters Yes For Use with Decks Yes Material Copper Actual Width (Inches) 8 For Use with Chimneys Yes For Use with Skylights Yes UNSPSC 30151600 For Use with Pipes Yes Actual Length (Feet) 20 cut and shape Copper material is rust resistant and has a 3oz craft backer Added protection for your roof against the elements General purpose flashing for a variety of applications Can be used with treated lumber