Is bathroom mold under silicone a health risk?« Back to Previous Page

Yes, bathroom mold under silicone is a health risk, particularly in Dubai's high humidity. The black and greenish mold you describe often includes species like Aspergillus or Penicillium, which can release spores that cause respiratory irritation, worsen allergies, and trigger asthma symptoms, especially in children or anyone with pre-existing conditions.

The fact you found it under the sealant and smell a persistent musty odor indicates a significant moisture issue. This is urgent because the mold is likely spreading behind the tiles and into the wall cavity, where it can compromise the structural integrity of the wallboard. In Dubai apartments, this hidden growth can also affect adjacent rooms or even neighbouring units.

For a case like this in Jumeirah Village, a professional inspection is strongly recommended. DIY removal often fails to address the hidden source, and improper cleaning can aerosolize a high concentration of spores. A proper assessment involves using moisture meters to map the dampness and often requires removing tiles and sections of the wall to fully remediate the affected area and ensure it doesn't return. The goal is to identify and fix the moisture source—often inadequate bathroom ventilation or a small plumbing leak—before any cleaning begins.