Common Flex Seal Applications: Fix leaky roofs, gutters, and downspouts - Repair RVs, campers, and mobile homes - Repair skylights - Vent Pipes - For roof drip edges and flashings - Leaky or broken hose and PVC pipe repairs - To seal or repair windowsills - For A/C drip pans, portable A/C units, duct work, and chimneys - On boats and other personal watercrafts - For bird baths, ponds, and fountains - Flat, metal, rubberized and granulated roof repairs and leaks - Foundations, gravel stops, asphalt shingles, and overlapped seams - And, much more!