Why dryer vent cleaning matters — especially in Calgary
According to the National Fire Protection Association, dryers and washing machines cause roughly 15,000 house fires per year in North America — and the leading cause is failure to clean the dryer. Lint is highly flammable. When it builds up in the exhaust duct, restricted airflow causes the dryer to run hotter than designed, and over time that heat ignites the accumulated lint.
Calgary-specific issue: many homes here have longer than average vent runs because of how the laundry rooms are positioned — sometimes in the centre of the house, far from an exterior wall. Longer runs trap more lint, especially in any elbows or bends. The exterior vent cap in Calgary also deals with freeze-thaw cycles — flap hinges corrode and the cap can freeze shut in winter, blocking airflow completely.
The signs are easy to miss until drying times start climbing. By the time your clothes take 90 minutes to dry, significant lint has already built up. Annual cleaning keeps drying times normal, extends the life of your dryer and eliminates the fire risk.