Controlling moisture in the internal walls of historic buildings is crucial to preserve their structural integrity, aesthetic appeal, and occupant health. Excessive moisture can lead to various problems, including:
As a general guideline, moisture readings for internal walls in historic buildings should be below the following:
| Material | Moisture Content (%) |
| —– | —– |
| Brick | 5-8 |
| Stone | 5-10 |
| Render | 5-10 |
| Timber | 12-15 |
These values can vary depending on the specific material, age, and environmental conditions of the building. However, monitoring moisture levels regularly and addressing any excessive moisture promptly is essential to prevent damage.
Moisture can enter internal walls through various sources, including:
Several preventive measures can be implemented to reduce moisture ingress and maintain appropriate moisture levels in internal walls:
Regular monitoring of moisture levels using moisture meters is crucial to detect and address moisture problems early on. Repair techniques for controlling moisture in internal walls include:
By adhering to these guidelines and implementing appropriate preventive measures, moisture control in the internal walls of historic buildings can be effectively achieved, preserving their longevity and safeguarding their historical significance.