What Is The Purpose Of Underpinning?

What Is The Purpose Of Underpinning? Underpinning is strengthening and reinforcing an existing foundation of a structure, typically by extending the depth and breadth of the foundation. What do you use for underpinning? Vinyl skirting. Concrete or stucco skirting. Brick and cinder block skirting. Fiber cement skirting. Lattice skirting. Why is underpinning required? Underpinning is