Consequences of Excessive Moisture in Internal Walls

Excessive moisture in internal walls can lead to several detrimental consequences, including:

Structural Damage

• Moisture can weaken the structure of the wall, making it more susceptible to damage from load-bearing forces.
• It can also cause the formation of mold and mildew, which can further degrade the wall’s structural integrity.

Health Hazards

• Mold and mildew can release harmful spores into the air, which can aggravate respiratory and allergic problems in occupants.
• Exposure to mold can also cause skin and eye irritation.

Property Damage

• Excessive moisture can cause paint and wallpaper to peel, and plaster to crumble.
• It can also damage furniture, carpets, and other belongings.

How to Prevent Excessive Moisture in Internal Walls

• Ensure proper ventilation to prevent moisture build-up.
• Install vapor barriers to prevent moisture from migrating from the ground into the walls.
• Locate sinks, baths, and showers away from exterior walls to prevent water seepage.

What Should Moisture Readings Be for Internal Walls?

Ideally, moisture readings for internal walls should be below 15%. Higher levels may indicate a moisture problem that requires further investigation.