Persistent mold in Jumeirah villa closets: long-term fix?« Back to Previous Page
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Our family villa in Jumeirah has a persistent mold issue in the upstairs bedrooms, specifically in the closets on the exterior walls. Even after we had it professionally cleaned last winter, the black spots and that damp smell came back within a few months. I'm constantly running the dehumidifier but it doesn't seem to be enough. What's the most effective long-term solution to stop this from recurring, especially with our humid climate?
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The root cause is likely a thermal bridge where the exterior wall meets the closet, creating a cold surface for condensation to form in our humid climate. This trapped moisture, often from ambient air, feeds mould growth behind walls where surface cleaning and dehumidifiers can't reach.
A professional inspection using thermal imaging and moisture meters is essential to pinpoint these hidden condensation points. The long-term fix involves addressing the building envelope—this could mean adding external insulation cladding, improving seals around windows, or installing a continuous vapour barrier during renovation. For immediate mitigation, ensure AC units are set to a constant, lower humidity level (ideally below 55%) even when the house is occupied, as cycling on and off promotes condensation. Keep closet doors ajar for better air circulation from the room's AC. In Dubai, villas with older construction methods are particularly susceptible. Surface remediation alone will always fail if the underlying moisture dynamic isn't resolved. A proper remediation plan from a company with building diagnostics capability will first identify the source, then remediate the mould, and finally propose structural changes to prevent recurrence. This science-driven approach is the only way to achieve a permanent solution. |
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