Case 2
Navigation
- Introduction
- Causes of Defects
- Good Practices
- Standards
- Maintenance and Diagnostics
- Remedial
- Similar Cases
- References
Cause of Defects
- Rust stains forming on the plaster wall is most likely due to the corrosion of the metal fixtures.
- The rust corrosion have been washed down by the rain water to stain the wall.
- The light coloured wall shows off the stain marks distinctly.
Staining on a facade has a lot to do with the pattern of rainwater runoff, which in turn is dependent on the facade configuration, colour, texture, as well as the “roughness” and “water absorption” properties of the materials used:
