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| HDB outdoor |
| Location |
Jurong West |
| Orientation |
West |
| Materials |
Concrete |
| Surface Moisture |
26.2% |
| Surface Temperature |
26.2°C |
| Stain types |
Black and yellow patches |
| Stain size |
20×30 cms yellow patches
10X30 cms
black patches |
| Stain location |
Below the balcony and around the plumbing |
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| Wind Speed |
0.7 m/s |
| Wind Direction |
East-West |
| Ambient Temperature |
29.4°C |
| RH |
73.7% |
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- Rain water trapping and water dripping
- Cold bridging in the corner of concrete balcony that leads to surface condensation
- Outside warm air contacts to cold surfaces aggravates surface condensation
- Less maintenance surrounding
- Dense vegetation surrounding the area
- High contents of atmosphere gas acids (SO2, CO and NO2 ) = Industrial area
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- Dispose water from vegetations pots and trapped rain water every time ponding water occur
- Reduce vegetations on the balcony.
- Since the area is less than 3m2, cleaning up the concrete can use a simple gears, includes gloves, google and home detergent.
- Put a proper fungicide to prevent future growth. Most of the fungicide only works effectively for 2 years; therefore, keep the area cleaning and dry is important.
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