In the photo below the target shingle perhaps it needs replacement due to damage from a falling object or roof pests is located.
How to replace damaged roofing shingles.
Removing 3 tab shingles using a flat bar to do a repair.
In that case tear out the damaged shingle and cut v notches in the replacement to fit around the four nails.
How to replace a damaged roof shingle without changing entire section of roof.
In these photos we ve marked it with black spots the first step obviously requires the removal of the nails holding that shingle to the roof deck.
We had a wind storm recently blow off one shingle and damage 3 shingles on our garage.
When replacing a damaged asphalt roof shingle you can either replace the entire piece or cut the shingle into sections and replace just a single tab.
Removing 3 tab shingles using a flat bar to do a repair.
We had to replace them and all the roofing companies said to do it ourselves because its easy winds of 100km the yard was a mess garbage shingles toy pools.
Use the claw of a hammer to loosen the adhesive under the tabs 2 rows above the damaged shingles and then loosen any exposed nails with the claw.
In order to replace damaged roof shingles you need to remove the damaged shingle install the new one and seal the edges.
If the existing shingles are brittle you may not be able to pry out the second row of nails without cracking a shingle.