How to permanently treat mold in closet on outside wall?« Back to Previous Page

The recurring mold on your closet's exterior wall points to a condensation issue, likely from poor insulation—a common problem in older Dubai villas, especially in Jumeirah. The high outdoor humidity meets the cold interior air from AC, causing water to condense inside the wall cavity.

First, remove all items and clean visible mold with a microfiber cloth and a solution of white vinegar or a dedicated mold cleaner. Do not simply paint over it. The wall must be completely dry before any treatment.

To stop it permanently, you must address the root cause: the thermal bridge. This requires a professional assessment to confirm the insulation's integrity. The most effective permanent solution is often to open the wall to install proper vapor barriers and insulation, stopping the condensation cycle. For a less invasive option, some specialists use targeted injection foam insulation to fill the cavity.

Until the wall is properly remediated, improve air circulation. Leave the closet doors ajar and consider a small, power-efficient dehumidifier or a renewable desiccant box inside to manage moisture. Running your AC consistently, even at a slightly higher temperature, helps maintain stable humidity levels indoors.

Given this is a recurring issue affecting your belongings, a professional inspection is strongly recommended to diagnose the wall's condition and propose a verified, lasting solution.