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| HDB indoor |
| Location |
Jurong West |
| Orientation |
North – South |
| Materials |
Ceramic Tiles |
| RH indoor |
70.8% |
| Surface Moisture |
10.92% |
| Surface Temperature |
28.7°C |
| Wind velocity indoor |
0.1 m/s |
| Stain types |
Black patches |
| Stain size |
Random |
| Stain location |
Bathroom floor and wall |
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| Wind Speed |
0.3 m/s |
| Wind Direction |
East-West |
| Ambient Temperature |
28.8°C |
| RH |
72.8 % |
|
- Wet and damp static condition that is caused by lack of proper ventilation and drying process
- Lack of sunlight
- No shower screen that causes water splash and damp patches in bathroom floor and wall
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- Cleaning up the contamination area with hydrogen peroxide-based cleaner such as HG mould spray
- Remove the contamination bathroom sealant with the new one that contains fungicides if the sealant condition is unbearable. However, fungicides inside sealant have a low concentration that causes them start slower and have a high vapor pressure which means that they evaporate quickly.
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