Black Jack all-weather roof cement is an asphalt based patching compound designed to repair cracks, seams, and holes in roofing materials

It also works great in new construction and in setting flashings, drip edges, and roofing material edges

It seals damaged areas and gives a layer of waterproof protection

To be used on roofs around skylights, vents, exhaust pipes, chimneys, valleys, and in the construction or repair of flashings, roll roofing, and shingles

Also excellent for use as a heavy-duty below grade and underground waterproofer and dampproofer

Black Jack roof cement cannot be painted

When using for larger repairs, it is highly to reinforce the repair with a strip of reinforcing fabric