In order to replace damaged roof shingles you need to remove the damaged shingle install the new one and seal the edges.
How to replace damaged roofing shingles.
How to replace a damaged roof shingle without changing entire section of roof.
Removing 3 tab shingles using a flat bar to do a repair.
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 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.
We had a wind storm recently blow off one shingle and damage 3 shingles on our garage.
In that case tear out the damaged shingle and cut v notches in the replacement to fit around the four nails.
Asphalt roof shingles can be easily damaged by high winds and falling tree limbs.
How to replace a damaged shingle.
Removing 3 tab shingles using a flat bar to do a repair.
After yanking all eight nails pull out the damaged shingle.
If the existing shingles are brittle you may not be able to pry out the second row of nails without cracking a shingle.