You may need to cut out a narrow strip.
How to repair a roof with tar.
Spread a layer of tar on the roof beneath the spot you have cut away.
How to do it.
Press the flaps from the cut portion into the tar and then spread another layer of tar on top of the flaps.
Allow the primer to flash off so that there is no excess primer on the surface of the roof.
Fill hole with cement.
Prime the repair area once the surface of the patch area is free of all dust debris and moisture apply the liquid asphalt primer to the roof surface with either a brush or roller.
Leaks and other damage to tar and gravel flat roof are repaired by patching the roofing membranes and a temporary roof leak repair may be required before a roofing contractor can create a more permanent fix.
Rubber coat 57 roof tar.
Cut patch and coat.
Push the tar from.