Universal Patching Fabric is a durable membrane designed to reinforce asphalt roof patching and white roof patching while repairing cracks, holes, seams and joints. Its durable open mesh weave assures thorough bonding and allows for expansion and contraction. Recommended for use with asphalt roof patching and white roof patching products. Use on roofs, gutters, chimneys, copings, drain pipes, flashings around TV aerials, skylights, ventilators and more.