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 shingles on a roof.
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.
How to replace a damaged shingle.
We had a wind storm recently blow off one shingle and damage 3 shingles on our garage.
Slide the new shingle up into place and secure it with four nails.
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.
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.
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.
Carefully lift the upper shingle and secure the new shingle with roofing nails.
Removing 3 tab shingles using a flat bar to do a repair.
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.