Black Jack All-Weather Roof Cement, 10 oz. is an asphalt-based patching compound specially formulated to repair cracks, seams, and holes in roofing materials. This versatile cement is for both new construction and repair projects, including setting flashings, drip edges, and roofing material edges. It effectively seals damaged areas, providing a durable layer of waterproof protection. I for use on roofs around skylights, vents, exhaust pipes, chimneys, valleys, and in the construction or repair of flashings, roll roofing, and shingles. Additionally, it serves as a heavy-duty below-grade and underground waterproofer and dampproofer. Please note that Black Jack roof cement cannot be painted. For larger repairs, it is highly to reinforce the repair with a strip of reinforcing fabric. This product comes in a convenient ready-to-use 10 oz. round squeeze tube. Model Number: