Clogged dryer vent is caused due to lint accumulation which reduce the exhaust airflow, these two feed on each other to provide conditions ripe for a fire. Lint is highly combustible and decreased airflow causes overheating of the exhaust environment, demanding excessive cycling of the high temperature limit switch and eventual failure. If your clothes are taking longer to dry or if the velocity of air exhausting from the dryer vent hood is minimal, maintenance is needed. Clothes dryers are prone to lint build up if there are numerous 90′s in the system or the distance is excessive. Therefore, the exhaust hood (roof jacks especially), transition hose and metal ducts should be inspected and cleaned on a regular basis. By cleaning your dryer and dryer vent you will reduce the fire danger, not only saving yourself and your house but also saving money on electricity bills.