What is a common indication of a roof leak?

Water stains on the ceiling are a common indication of a roof leak because they signify that water has infiltrated the home, typically coming from the roof or upper levels. When a roof develops leaks, moisture can travel through the structure, eventually reaching and saturating the ceiling materials. This moisture will often cause visible staining, which can appear as discoloration or brownish patches on the ceiling surface.

Identifying water stains can help homeowners or inspectors pinpoint potential problem areas in the roofing system. It's essential to address these stains promptly as they not only indicate existing leaks but can also lead to more significant damage over time if not properly managed. In contrast, cracked shingles may suggest wear and potential vulnerabilities but do not guarantee that a leak is present until water ingress is confirmed. Dry patches do not indicate moisture problems; instead, they might suggest areas where water cannot reach. Missing gutters can create drainage issues but are not a direct indication of leaks in the roofing material itself.