Should I clean this greenish-black stuff myself?« Back to Previous Page

After the heavy rain last month, I noticed a strange greenish-black stuff growing on the corners of my bathroom ceiling. It’s not something I’ve seen before and it smells musty. Is this mold? If so, does that mean I need to address it even though we’re renting? Can you suggest some DIY methods for cleaning it up without damaging the ceiling?
Posted by Vikram Tiwari
Asked on December 18, 2025 11:17 am
Absolutely, the greenish-black stuff you've noticed could very well be mold. Mold thrives in damp environments and can develop quickly following heavy rain, especially on surfaces like ceiling corners where moisture may accumulate unnoticed. The musty smell you described is also a common indicator of fungal growth.

In Dubai/UAE, it's important to understand that while DIY remediation might seem convenient, there are significant risks involved, particularly concerning health impacts and property damage if not done correctly. Local regulations, such as those outlined in the UAE Environmental Protection Law (Federal Decree-Law No. 24 of 1989), emphasize proper handling and removal to prevent spread.

If you decide to attempt a DIY approach, here are some steps you can follow:

Firstly, ensure safety by wearing protective gear: gloves, masks, and goggles. The mold could contain spores that pose respiratory risks if inhaled or skin irritants. Keep the area well-ventilated as well.

Secondly, identify the extent of the issue. Mold often grows in small patches but can spread rapidly under favorable conditions. Take photos to document its location, size, and condition for potential insurance claims later on.

Thirdly, address any underlying moisture issues causing the mold growth. This might involve fixing leaks or improving ventilation. In Dubai’s climate, ensuring adequate humidity control is crucial; consider using dehumidifiers in affected areas if necessary.

Fourthly, prepare a cleaning solution by mixing water with a few drops of detergent and some bleach (1 part bleach to 9 parts water). Soak cloths or sponges in this solution. Test the mixture on an inconspicuous area first to ensure it doesn't damage the ceiling.

Apply the solution carefully, scrubbing gently but thoroughly. Pay special attention to corners where mold tends to grow. Allow the area to dry completely before allowing others back into the space.

Lastly, if you notice that the mold is widespread or difficult to remove after your efforts, it's highly advisable to call in a professional service provider like Saniservice at 800-MOLDS (800-66537) for an inspection and remediation. They have the expertise, equipment, and safety measures necessary to handle mold effectively.

Remember, while DIY methods can be cost-effective, they come with risks that professionals mitigate. Always prioritize health and safety over convenience when dealing with mold issues in your rental property.
Posted by Sani Admin
Answered on December 20, 2025 5:28 am