When it comes to repairing roof leaks, many homeowners wonder if Flex Seal Spray can be used on shingles. Fortunately, Flex Seal can adhere to many types of materials, including wood, metal, tile, concrete and aluminum. It can work on shingles if the material your shingles are composed of is compatible with Flex Seal Spray. Always test a small area first to test adhesion before applying it to larger sections. To learn more about roof repairs with Flex Seal Spray, click here.