What is the most common visual sign of termite damage?

The most common visual sign of termite damage is hollowed-out wood. This occurs as termites consume the cellulose material in wood, leaving behind a thin layer of wood on the surface while the interior becomes compromised. This type of damage can often go unnoticed until significant structural issues arise, as the outward appearance may still appear relatively normal. The hollow sound produced when tapping on these areas can be a crucial indicator of termite activity, making it essential for homeowners and pest control professionals to be vigilant in inspecting for such signs.

Though other signs like frass, swollen walls, and discolored paint can also indicate termite issues, they are typically consequences of damage that is already progressing or other types of pest activity. Hollowed-out wood, however, is a direct result of termite feeding, making it a clearer and more immediate sign of their presence. Recognizing this specific sign can lead to timely intervention and effective treatment, thereby mitigating potential damage.