Conditions That Contribute to Drainage Blockages
Blockages along rooflines and downspouts typically stem from organic accumulation and related drainage disruptions. While conditions vary from property to property, common contributing factors include:
- Windblown twigs, leaves, seed pods, or plant husks settling into open troughs.
- Granule loss from older roofing materials accumulating in low-slope runs.
- Standing water caused by silt buildup, poor gutter pitch, or compacted debris.
- Nesting material or pest activity collecting near elbows and downspout entries.