How does underpinning assist in masonry repairs?

Underpinning plays a crucial role in masonry repairs by providing stability to settling or failing foundations. This process involves extending the foundation depth or increasing its capacity to bear loads, which is vital when a structure experiences issues like soil erosion, subsidence, or the weight of new additions to the building. By addressing the foundation's stability, underpinning ensures that the entire structure can bear its intended load safely, thereby preventing further damage or collapse.

This method not only strengthens the existing foundation but also helps mitigate future problems that may arise from ongoing soil movement or changes in ground conditions. Properly executed underpinning can preserve the integrity and safety of a building while also allowing for necessary repairs to be made without compromising its overall structural health.