The answer to 'why is my dryer vent buildup' is that a clogged or blocked dryer vent is a common issue that can cause lint and debris to accumulate. This buildup can restrict airflow, leading to longer drying times, increased energy usage, and even potential fire hazards.
Some of the most common causes of dryer vent buildup include lint, pet hair, and even bird nests or other debris getting trapped in the vent. Over time, this can create a blockage that prevents proper ventilation and leads to the vent becoming clogged. Symptoms of a blocked vent may include longer drying times, clothes that feel hotter to the touch, or even a burning smell from the dryer.