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| HDB indoor |
| Location |
Jalan Besar |
| Orientation |
South-North |
| Materials |
Sealant |
| RH indoor |
64.2% |
| Surface Moisture |
4% |
| Surface Temperature |
24°C |
| Wind velocity indoor |
0 m/s |
| Stain types |
Black patches |
| Stain size |
Along the sealant |
| Stain location |
Along the sealant |
|
| |
|
| Wind Speed |
0.1-0.7 m/s |
| Wind Direction |
East-West |
| Ambient Temperature |
30.6°C |
| RH |
60.5% |
|
- High indoor humidity because of using hot water during shower
- Lack of proper ventilation and drying process. Evaporation process is very slow and limited
|
- Mechanically dehumidifier air
- Exhaust moist air with exhaust fan. According to ASHRAE 62.99 a bathroom should exhaust 25 cubic feet per minute (cfm) with a continuously operating fan or 50cfm with a fan that turn on and off as needed.
- Dilute moist air by ventilating
- Use cold water than hot water since cold water put less moisture into the air and use less energy
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