Trace runoff from high points to discharge
Start at ridges and upper roof planes, then follow valleys, transitions, penetrations, eaves, gutters, outlets, and visible discharge paths. Note where runoff concentrates, overflows, stains fascia, reaches a lower roof, or appears indoors. Inspect attic areas when safely accessible and compare moisture patterns with exterior details. The report should separate covering and flashing defects from gutter slope, blocked outlets, ventilation, insulation, or site drainage. Each recommendation needs a location and observed condition. This complete route prevents the scope from stopping at the roof edge when evidence points farther downstream.
- Map upper-to-lower runoff, valleys, eaves, gutters, outlets, and interior symptoms.
- Identify which drainage components are included, excluded, maintained, or referred.
- Record uncertainty caused by concealed construction, snow, height, or access.
