Causes of High Moisture Levels in Internal Walls
Moisture readings in internal walls should not surpass 15% to avoid structural damage. However, high moisture levels can occur due to various factors.
Construction Defects
- Inadequate waterproofing during construction
- Poor drainage systems allowing water to penetrate walls
- Structural defects in the roof or external walls
Condensation
- Insufficient ventilation leading to moisture buildup from indoor activities
- Blocked ventilation grills or air bricks
- Poor thermal insulation causing cold surfaces to condense moisture
Water Ingress
- Leaks from plumbing pipes
- Water penetration through cracks or gaps in walls
- Rising dampness from the ground
Lifestyle Factors
- Excessive moisture production from cooking, showering, or laundry
- Poor ventilation when drying clothes indoors
- Use of humidifiers or air conditioners without proper ventilation
Other Causes
- Flooding or water damage
- Structural movement causing cracks or gaps
- Defective building materials
Identifying the source of high moisture levels in internal walls is crucial to prevent further damage. Professional assistance from a qualified expert is recommended for proper diagnosis and remediation measures.