Brown mould: the #1 specialist

Brown mould is a common household mould that varies in colour depending on humidity, light, and the surface it grows on. It can sometimes be mistaken for black mould.

Brown mould appears as spots or discolouration on walls or wallpaper, often resembling black mould. If left untreated, it can become thicker with a hairy, fluffy texture and may even develop mushroom-like shapes.

• Ulocladium: Often found after water damage, especially in basements and crawl spaces. It can trigger allergic reactions.
• Cladosporium: Grows both indoors and outdoors, typically in damp areas, and is usually harmless.
• Taeoniella: Grows on wood, causing wood rot, with a brown to black appearance.
• Pithomyces chartarum: Thrives in dark, damp environments like under leaves and can cause irritation.
• Aureobasidium pullulans: May appear pink or black and grows in various household locations under different conditions.
• Stemonitis: Also known as chocolate tube slime mould, it grows on decaying wood and in bathrooms.

• Natural Ventilation: Ensure sufficient airflow by opening windows and doors.
• Mechanical Ventilation: Use mechanical ventilation or dehumidifiers if natural ventilation isn’t enough.
• Maintenance: Prevent neglected maintenance and clean regularly.
• Sunlight: Allow dark areas to receive enough sunlight to reduce mould growth.

This depends on your insurance and on the cause of the mould. Damages because of leaks or construction defects is often compensated.

No, mould never disappears on its own! While reduced moisture may slow its growth, the spores remain and can multiply again when moisture levels increase.