How to treat and prevent mold from trapped moisture?« Back to Previous Page

Based on your description of a past leak and the current high humidity in your Al Barsha villa, you are likely dealing with a secondary mold growth issue stemming from trapped moisture within the building envelope. The initial leak from the AC condensation line, common in Dubai's climate due to year-round AC operation, likely saturated the wall interstitial spaces. Even after the pipe was fixed, the moisture remained, creating an ideal environment for mold, such as the black speckles you've observed.

For a small, contained area, you can attempt a limited DIY approach. First, isolate the area by sealing the closet with plastic sheeting. Wear appropriate PPE: an N95 respirator, gloves, and eye protection. The affected drywall must be carefully inspected. If the back of the drywall or the insulation within the cavity is contaminated, which is highly probable, it is not surface-treatable and requires removal and replacement by professionals. For superficial growth on a non-porous surface, a detergent solution can be used for cleaning, but bleach is not recommended as it does not address the root moisture problem and can exacerbate spore release.

However, given the history of a leak and the potential for widespread hidden contamination, a professional inspection is strongly advised. Trapped moisture requires specialized equipment, like thermal imaging cameras and moisture meters, to accurately assess the extent of the damage behind the walls. DIY efforts often fail to address the core issue, leading to rapid regrowth.

For a definitive assessment and compliant remediation per UAE standards, contact our certified team at Saniservice. We can diagnose the full scope of the problem, including any remaining AC condensation issues, and implement a permanent solution. Call us at 800-MOLDS (800-66537) or email hello@saniservice.com.