Repair a clean crack with roof sealant. There’s no need to replace a shingle with a clean tear. Instead, apply a thick bead of roof sealant under the crack with a caulking gun. Blisters often occur with leaks in roll roofing. If there's no blister associated with your leak, skip https://roof-fix65218.wikipresses.com/4535555/the_ultimate_guide_to_roof_repair