How to permanently remove closet mold on exterior wall?« Back to Previous Page

That black mold in your closet is a classic Dubai issue, especially in coastal areas like Marina. The exterior wall is likely cooler than the humid indoor air, causing condensation to form inside the wall cavity—this trapped moisture is the perfect environment for mold to grow on organic materials like drywall and dust.

For a permanent fix, you must address both the visible growth and the hidden moisture source. Start by mixing a solution of one part white vinegar to four parts water. Wear an N95 mask and gloves. Gently scrub the area with a soft brush dipped in the solution; do not oversaturate the wall as this can force moisture deeper. Avoid bleach, as it only removes the surface color and can damage paint.

After cleaning, let the area dry completely. Then, inspect the exterior wall for any cracks or compromised sealant that could be allowing humid air to penetrate. This sealing is a critical step often missed.

However, given the location on an exterior wall, the mold you see might only be a small part of the problem growing within the wall itself. For persistent or recurring mold, a professional inspection with a borescope can assess the cavity's condition. In many Dubai buildings, this requires building management approval before any invasive investigation or remediation can begin. A proper remediation would involve removing the affected drywall, treating the cavity, and installing new moisture-resistant board.