Water Absorption and Permeability in Walls

What should moisture readings be for internal walls?

Moisture readings for internal walls should ideally be below 17%. Readings above this level can indicate a moisture problem that requires investigation and remediation. Elevated moisture levels can lead to various issues, including mold growth, structural damage, and poor indoor air quality.

Causes of High Moisture Levels in Walls

* Leaky pipes or plumbing fixtures
* Poor ventilation
* Condensation
* Water intrusion from outside sources (e.g., leaks, flooding)
* Defective waterproofing systems

Consequences of High Moisture Levels in Walls

* Mold and mildew growth
* Rotting of wooden structures
* Deterioration of finishes (e.g., paint, wallpaper)
* Structural damage (e.g., weakening of walls, collapse)
* Health issues (e.g., respiratory problems, allergies)

Remediation of High Moisture Levels in Walls

* Repairing leaks and plumbing issues
* Improving ventilation
* Installing vapor barriers
* Applying water-resistant coatings
* Drying out affected areas using fans and dehumidifiers
* In severe cases, replacing affected materials (e.g., drywall, insulation)

Importance of Regular Monitoring

Regular moisture monitoring of internal walls is crucial for detecting moisture problems early on and preventing costly repairs. Moisture meters can be used to measure moisture levels in walls, and readings should be taken periodically and documented.