Autumn is normally the mellow transition between summer’s heat and winter’s chill. This year, however, shifting weather patterns mean a very different season – and the consequences may be felt inside our homes as much as outdoors.
Seasonal forecasts from the SA Weather Service suggest the eastern, northern and central parts of South Africa may experience above-normal rainfall during autumn, even extending into winter; and, while the western and southern coastal regions are expected to be slightly drier than in recent years, residents will still face the usual challenges associated with cold, wet, windy winter weather.
These forecasts focus on what happens outside, but the knock-on effects in our homes shouldn’t be overlooked.
Autumn, especially when it’s wet, creates ideal conditions for mould. As trees shed leaves and vegetation begins to decay, fungal spores increase in the air. Rainy weeks interspersed with sunny days, a combination currently affecting parts of Gauteng and the east coast, further accelerate how these spores spread. And, once they enter our homes, damp surfaces and poor ventilation allow them to multiply quickly.
The danger, says Trevor Brewer, director at lifestyle technology specialist Solenco, is that mould doesn’t just damage walls and ceilings. “It can also trigger respiratory irritations, allergic reactions and asthma symptoms, particularly in children, older adults and people with existing respiratory conditions.”
Another reason for mould problems becoming more common at this time of year is behavioural. As temperatures drop, or the wind or rain blows in, residents tend to close doors and windows, thus trapping moisture and pollutants indoors. Condensation from cooking, showering and laundry can then linger in the air, creating the humid conditions that mould thrives in, no matter where you live.
The solution is to manage indoor air quality proactively. Monitoring humidity levels, improving airflow and tackling damp areas early can prevent bigger problems later. Simple habits like airing out rooms and cupboards when the weather allows, wiping condensation off windows and walls, and ensuring kitchens and bathrooms are well-ventilated can make a real difference.
Technology also helps. Air purifiers equipped with high-efficiency particulate air (HEPA) filters are designed to capture extremely fine airborne particles including mould spores, pollen and dust.
The Solenco 803 Air Purifier, for example, uses a multi-stage filtration process, including a medical-grade HEPA filter, activated carbon and UV-C treatment to quietly remove up to 99.97% of airborne pollutants.
In homes where moisture is the main issue, controlling indoor humidity becomes essential. Dehumidifiers extract water from the air, helping prevent condensation, musty odours and mould growth before it takes hold.
But, Brewer notes that speed matters when tackling deep-seated moisture. Models such as the MeacoDry Arete combine air purification with efficient moisture removal through a powerful 250m³/h airflow. The higher the airflow, the more frequently the air in a space is cycled. This allows moisture to be removed faster and reduces the chance of mould taking root.
“Seasonal weather may be unpredictable, but the conditions inside our homes don’t have to be. By paying attention to humidity, ventilation and air quality, and investing in quality air treatment technology, we can reduce the risk of mould and keep our living spaces comfortable throughout autumn’s changing conditions,” says Brewer.
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