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Spotting and Fixing Wall Defects

Spotting and Fixing Wall Defects

Updated 9/29/2026

EN2.9 MB

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What you'll learn

  • Identify seven common wall defects by appearance: cracks, rising damp, efflorescence, eroded mortar, out-of-plumb walls, honeycombing, and termite damage
  • Explain the likely cause of each defect and describe practical prevention methods
  • Distinguish cosmetic cracks from structural cracks and know when to STOP work and call the msimamizi or engineer
  • Apply defect recognition skills to realistic site scenarios and make correct escalation decisions

About

Learn to identify common masonry defects in Tanzanian buildings — cracks, damp, erosion — and know when to call the supervisor.

What's inside· 19 lessons
  1. 1Honeycombing in Concrete
  2. 2Out-of-Plumb and Bulging Walls
  3. 3Image Quiz: What Defect Is This?
  4. 4Cracks in Walls: Types and Causes
  5. 5Why Defect Recognition Matters
  6. 6Quiz: Crack Identification
  7. 7Preventing Cracks
  8. 8Efflorescence and Eroded Joints
  9. 9Key Takeaways
  10. 10Termite Damage to Timber
  11. 11Out-of-Plumb and Bulging Walls
  12. 12Out-of-Plumb and Bulging Walls
  13. 13Rising Damp and Missing DPC
  14. 14Cracks in Walls: Types and Causes
  15. 15Cracks in Walls: Types and Causes
  16. 16Defect Diagnosis Scenarios
  17. 17Rising Damp and Missing DPC
  18. 18End Test
  19. 19Rising Damp and Missing DPC

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