The first step in the patching process is to identify any damaged shingles. Homeowners should regularly inspect their roofs, especially after severe weather events such as storms or hail. Look for missing, cracked, or curled shingles. Additionally, check for any granule loss, which can indicate that the shingles are nearing the end of their life cycle. If shingles are significantly worn or damaged, it may be more efficient to replace them rather than patch them.