As temperatures drop and rainfall increases, UK households are closing their windows more often. While this keeps homes warm, it can contribute to condensation and mould. Ruth MacEachern, ventilation expert at EnviroVent, warns that one common mistake can add litres of moisture to the air.
Extractor fan timing is key
Running an extractor fan only while cooking or showering, then switching it off, is not enough to eliminate moisture effectively. MacEachern explains that everyday activities like cooking, showering and boiling the kettle cause moisture levels to rise in colder months.
"Four people living in a three-bed property could produce up to 112 pints of moisture a week from just breathing, cooking, showering and boiling the kettle," she said. To combat this, extractor fans should continue running for a minimum of 15 minutes after finishing in both kitchen and bathroom.
Six steps to reduce moisture
Alongside running fans longer, MacEachern recommends six additional steps: cover pots and pans when boiling water, avoid opening the dishwasher until it has cooled, avoid opening the oven too often when cooking, use slightly cooler water to bathe, ensure the bathroom door is closed during and after showering or bathing, and avoid leaving the bath filled for too long after use.
Drying clothes indoors
Without a tumble dryer or outdoor line, drying clothes inside can raise moisture levels. MacEachern suggests using the bathroom as a makeshift drying room: use the towel rail to heat the room, turn on the extractor fan, and leave space between drying racks to boost airflow. "Not only does this method dry clothes efficiently, but it also avoids the musty smell that can often occur with indoor drying methods," she said.
