The answer to 'why is my gutter guards curling shingles' is that improperly installed or low-quality gutter guards can put excessive pressure on the shingles, causing them to curl or lift. This is a common issue that homeowners face when trying to install gutter guards themselves without proper expertise.
Gutter guards need to be installed with the right clearance and tension to avoid putting too much force on the shingles. Improper installation or using low-grade materials that are not designed for your roof type can lead to shingle curling over time. This not only looks unsightly but can also compromise the integrity of your roof and lead to leaks.