Cracks in walls are a common sight in many properties and are not always a cause for alarm. However, understanding the type and severity of cracking can help homeowners determine whether further investigation is required.
Small hairline cracks often occur due to normal settlement, plaster shrinkage, or seasonal changes in temperature and humidity. These are generally cosmetic and can often be repaired during routine decorating.
Larger cracks may indicate more significant movement. Diagonal cracks around doors and windows, widening cracks, or those measuring more than a few millimetres wide should be monitored carefully.
Factors such as foundation movement, moisture changes in the ground, nearby tree roots, and structural alterations can all contribute to wall cracking.
Other warning signs include sticking doors and windows, sloping floors, and visible separation between building elements.
If cracks appear to be worsening or are accompanied by other signs of movement, professional advice should be sought to determine the cause and any necessary remedial action.
