How to permanently remove and prevent mold in UAE villa?« Back to Previous Page

Recurring mold at the wall-ceiling junction in a Jumeirah villa is almost always a condensation issue, worsened by the high humidity and constant AC use. Simply cleaning the surface is a temporary fix because the moisture source is inside the wall cavity.

The most effective long-term solution requires addressing the hidden moisture. In plaster walls common here, the problem is often thermal bridging. The concrete slab of the ceiling is cooler than the insulated wall, causing humid air to condense on the cold surface inside the wall. This persistent dampness feeds the mold you see.

For a permanent fix, a professional inspection is critical to confirm the exact moisture source. The remediation process typically involves three steps. First, the affected plasterboard must be carefully removed to access and treat the cavity and the back of the adjacent wall. Second, the area must be treated with appropriate antimicrobial solutions. Finally, the wall should be rebuilt using mold-resistant drywall and proper vapor barriers to prevent future condensation at that thermal bridge.

To prevent recurrence, manage indoor humidity with well-maintained dehumidifiers or your AC's dry mode, ensuring relative humidity stays below 60%. Improve air circulation in the room with fans, and consider having your AC system inspected to verify it is correctly balanced and not contributing to the cold spot.