Visible signs
Where water appears can point to the affected roof detail
From inside, identify the room, wall or ceiling position and whether the sign aligns with an edge, outlet, rooflight or junction. From a normal window, you may be able to note standing water, debris or an obvious surface change without leaning out. Do not step onto a flat roof; it may be fragile even when it looks accessible.
- Mark the interior location on a simple sketch.
- Note whether symptoms follow prolonged or wind-driven rain.
- Avoid clearing outlets or testing the surface yourself.