Cladosporium: The Most Common Household Mould in Adelaide

If you’ve seen olive-green, brown, or dark patches on your window frames, bathroom tiles, or behind furniture, chances are you’ve met Cladosporium — the single most common mould genus in Australian homes.

Why It’s So Common in Adelaide

Cladosporium can grow at temperatures as low as 0°C and doesn’t need as much moisture as other moulds. This makes it perfectly suited to Adelaide’s winter conditions — growing on cold window frames, exterior walls, and any surface where condensation forms regularly. It’s especially common in homes across Charles Sturt and West Torrens where 1950s-70s brick homes have minimal insulation.

Is Cladosporium Dangerous?

While less threatening than Stachybotrys, Cladosporium is a significant allergen and asthma trigger. Heavy indoor concentrations cause chronic sneezing, sinus congestion, and respiratory inflammation. Learn about mould health effects.

Prevention Is Key

Cladosporium prevention focuses on reducing condensation: improving ventilation, using exhaust fans in bathrooms and kitchens, and addressing thermal bridging on cold walls. For existing growth, professional inspection identifies the moisture source so treatment is lasting, not just cosmetic.