Bathroom exhaust fan dripping water. Ive had a few showers since then and every time the vent fan has dripped quite a lot. In winter the warm bathroom air turns cold from the freezing attic or outdoor temperatures. Click to see full answer. Water can start dripping from the bathroom fan when frost builds up inside.
The hot and humid summer air will condense when it hits the pipe made cold by the air conditioning system. Humidity is just over 60 RH in our house for the past couple weeks – just the time of the year no AC running heat runs only a. In winter when the warm moist air from the bathroom hits cool air in the attic or outdoors it condenses sending drips back down the ductwork. Through a seam pooled on the vapour barrier until it found a place to escape then showed up as a wet spot on your ceiling. Click to see full answer. It is usually due to condensation in the duct which causes water to drip back down through the fan. Likewise people ask why is there water dripping out of my bathroom exhaust fan.
The cause of condensation Water stains on the ceiling around your bath fan may indicate a leak coming from the vent cap on your roof but condensation is the more likely culprit. You may have condensation in the exhaust piping that is running back down the pipe and dripping out through the fan. It could have run out of the piping eg. In winter when the warm moist air from the bathroom hits cool air in the attic or outdoors it condenses sending drips back down the ductwork.