Just How to Lay Roof Shingles: 11 Steps

https://reidda6x9c.doodlekit.com/blog/entry/7803002/3-ways-to-remove-paint-from-skin

Then snap a chalk line and trim them off with a hook blade in your utility knife. If the overhang is greater than a foot, reduced some off and also use the remainder elsewhere. One more means of dealing with valleys