Why is there a musty smell after rains?« Back to Previous Page

After the heavy rains last month, I noticed a musty smell coming from the corner of our living room, near where the wall meets the floor. It's gotten worse over the past few weeks despite trying to keep the area dry with towels and dehumidifiers. My kids have been complaining of coughing more frequently too. What could be causing this and how can I prevent it from happening again?
Posted by Hamad Sharif
Asked on January 8, 2026 4:08 am
The musty smell after rains is most likely due to the growth of mold. In areas like Dubai and the UAE, humidity levels can spike during rainy seasons leading to moisture accumulation in walls and floors particularly at corners where moisture tends to collect. This creates an environment conducive for mold spores to flourish.

Mold requires three things to grow: food (organic material), moisture, and warmth. In a residential setting, building materials like wood, paper, carpet, or drywall can act as food sources while the high humidity from rains provides the moisture needed. As mold consumes these organic substances it breaks them down releasing volatile organic compounds which we perceive as that distinct musty smell.

The fact that your children are experiencing more frequent coughing could be related to the presence of molds. Certain types of molds produce allergens and irritants that can trigger respiratory issues especially in kids or individuals with preexisting conditions like asthma. This is why it's crucial to address this issue promptly.

For accurate assessment, I recommend scheduling a professional inspection by calling 800-MOLDS or emailing hello@saniservice.com. They have expertise in mold remediation and will be able to provide detailed analysis of the situation and develop a plan tailored for your apartment.

In the meantime, here are some immediate steps you can take:
1. Ensure proper ventilation: Open windows when possible but avoid letting cold air enter directly as it may increase humidity levels inside.
2. Use dehumidifiers: Place them in affected areas to reduce moisture content. Aim for a relative humidity level below 60%.
3. Clean thoroughly: Scrub the area with a mixture of water and mild detergent then dry completely. For severe cases, use a commercial mold cleaner or consult professionals.
4. Address underlying issues: Check if there are leaks or inadequate drainage causing excess moisture in your apartment.

Remember, prevention is key! Regularly check for signs of moisture, maintain good indoor air quality through proper ventilation, and promptly address any water damage to prevent mold from taking hold again.
Posted by Sani Admin
Answered on January 10, 2026 3:41 pm