• The double-sided copper strip is 20x stronger than zinc strips
• The copper oxidizes and eventually blends with 90% of shingle colors for a neat and clean look
• Uses the natural process of water interacting with copper to release ions that prevent growth of algae, mold, moss, etc. on shingles
• Works on new or existing roofs made of asphalt, cedar, slate, etc.
• Helps improve the overall look of a roof by removing black streaks, patchy spots, and other unsightly discolorations.