How to treat black mold on humid bedroom wall in Dubai?« Back to Previous Page

The black spots are likely Stachybotrys or Cladosporium mould, thriving on the trapped humidity behind your wardrobe. In Dubai's climate, this is a common issue in rooms with poor air circulation, where condensation builds up on cooler interior walls despite constant AC use.

Start by moving the wardrobe away from the wall to allow air to circulate. Wipe the visible mould with a microfiber cloth dampened with a diluted detergent solution (one part detergent to ten parts water), then dry the area thoroughly. However, this only addresses the surface; the mould's root structure is likely inside the plaster.

For a lasting solution, you must identify and control the moisture source. The persistent humidity suggests either a hidden plumbing leak within that wall or, more commonly in Dubai, significant condensation due to the temperature differential between the cold AC and the humid outdoor air. A professional inspection with a thermal imaging camera and moisture meter is the most effective way to pinpoint the exact cause.

Remediation involves removing the contaminated plaster, treating the wall cavity with antimicrobial solutions, and reinstating with mould-resistant materials. Simply painting over it with anti-mould paint will fail, as the mould will bleed through. Companies with their own microbiology lab can test a swab to identify the species, which dictates the specific remediation protocol required. For a confirmed case on an interior wall, this is not a DIY project; professional remediation is needed to prevent recurrence and protect your family's health.