The answer to 'why is my architectural shingles clogged gutters' is that architectural shingles, also known as dimensional or laminate shingles, are thicker and more textured than standard 3-tab shingles. This can cause more debris and granules from the shingles to accumulate in the gutters, leading to clogging. Symptoms of clogged gutters include water overflowing, basement leaks, and roof damage from improper drainage.
To fix clogged gutters with architectural shingles, you'll need to clean the gutters more frequently, about 1-2 times per year. This is best done by a professional roofing contractor, as it requires specialized equipment and safety precautions. For minor clogs, you may be able to DIY with a gutter scoop or plumber's snake, but be very careful on a ladder. If the gutters are severely clogged or damaged, it's best to call in a pro to inspect and repair them.