How to permanently remove recurring mold behind curtains?« Back to Previous Page

My kids have been coughing and I suspect it might be from the black spots I keep finding behind our bedroom curtains in our Jumeirah villa. It seems to come back every winter after the humidity kicks in, no matter how much I clean it. What’s the most effective way to treat this and stop it from returning for good?
Posted by Margaret Williams
Asked on May 7, 2026 4:25 pm
Recurring mold behind curtains in a Jumeirah villa is a classic symptom of condensation buildup on cold walls, exacerbated by Dubai's high winter humidity and year-round AC use. The black spots are likely Cladosporium or Aspergillus, common here due to the climate. Simply cleaning the visible growth does not address the moisture source, so it will always return.

First, improve air circulation. Keep curtains open during the day and move furniture away from the wall to allow air to flow. Ensure your AC is set to a consistent, comfortable temperature (around 22-24°C) to minimize the drastic temperature difference between the cooled indoor air and the warm, humid air outside that causes condensation on walls.

The most effective permanent solution is to address the wall's surface temperature. For exterior walls in villas, this often requires professional intervention. An inspection can determine if adding external cladding or internal insulation is necessary to prevent the wall from becoming a cold surface where moisture condenses. This is a common building remediation need in the UAE.

For immediate treatment, use a solution of white vinegar or a dedicated mold cleaner, not bleach, as bleach only removes the colour and does not kill the roots. However, this is only a temporary measure. Given the recurring nature and your children's symptoms, a professional inspection is strongly recommended. They can use a moisture meter to pinpoint the exact condensation levels and thermal imaging to identify any hidden cold spots or insulation flaws in the wall structure. This diagnostic step is crucial for a permanent fix.
Posted by Sani Admin
Answered on May 9, 2026 5:50 am