Conditions That Cause Gutter Blockages
Outdoor debris builds up in roof drainage systems over time through seasonal shedding and windy weather. A combination of organic matter and roof grit can quickly obstruct open troughs and downspout drop outlets:
- Decaying leaves, small branches, and twigs dropped by nearby trees.
- Windblown dust, seeds, and organic matter settling into trough corners.
- Granules washing down from shingles that mix with organic debris to form heavy sludge.
- Nesting material or pests seeking standing water in uncleaned channels.