Shingle Shield Roof & Deck Cleaner makes stained and discolored roofs look like new! The damaging effects of dirt, mildew, algae, fungus and moss are no match for the concentrated power of Shingle Shield Roof & Deck Cleaner!
One gallon cleans approximately  2,000 square feet! Simply dilute with water and apply with a garden sprayer, let set, then rinse off using a garden hose with a pressure wand tip. It's that simple! Remove 15 years of weathering in just 15 minutes. For best results, you can use a pressure washer to rinse the roof, but don't exceed 500 PSI as you don't want to damage your roofing materials.