Allow the primer to flash off so that there is no excess primer on the surface of the roof.
How to repair a roof with tar.
How to do it.
If the cost of the roof repair is truly bothering you consider making your own temporary repair by tacking a tarp over the roof or cutting up some sheet metal into shingles and using these to patch the roof.
You may need to cut out a narrow strip.
Cut patch and coat.
Push the tar from.
Spread a layer of tar on the roof beneath the spot you have cut away.
Use a utility knife to cut a slit in a bubble or lift up the two sides of a crack.
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.
Rubber coat 57 roof tar.
Fill hole with cement.