How to permanently remove black mold in Dubai's humid bathroom?« Back to Previous Page

My kids have been coughing and I suspect it's from the black mold I just found all along the base of the shower in our master bathroom. We've lived here for 2 years and just noticed it, but it looks like it's been growing behind the sealant for a while. What's the best way to get rid of this properly in Dubai's humidity to make sure it doesn't just come back?
Posted by Francois De Jong
Asked on April 22, 2026 5:50 pm
Black mold in bathrooms is common here due to our constant high humidity, which provides the perfect environment for growth. Persistent coughing in children is a frequent symptom of exposure to the spores it releases.

For a growth along the shower base, the issue is almost always behind the sealant, as you've suspected. Simply wiping the surface is ineffective. The proper remediation involves physically removing all compromised silicone sealant, thoroughly cleaning and disinfecting the underlying substrate, and allowing it to dry completely before applying a new, high-quality mold-resistant sealant. This process is critical to prevent immediate regrowth.

Given the potential health impact on your family, a professional inspection is wise to assess the extent and confirm the mold type. In Dubai, proper remediation follows standards like the IICRC S520, which focuses on containment and removal, not just surface cleaning. A company with its own microbiology lab can test to identify the species, which informs the safest removal protocol and helps rule out other allergens.

To prevent recurrence, control humidity. Run the bathroom exhaust fan for at least 30 minutes after every shower and ensure it vents outside, not into the attic. Wipe down wet surfaces and fix any plumbing leaks immediately. Consider a dehumidifier if humidity consistently remains above 60%.
Posted by Sani Admin
Answered on April 24, 2026 10:11 pm