Foundation Walls WBDG Whole Building Design Guide. The foundation wall of a building may be a cast-in-place concrete retaining or basement wall or a structural wall complete with load-bearing pilasters. Materials used may be concrete or reinforced masonry. The foundation wall system may include an earth retention system of soldier piles and wood lagging or. See more

Web  When deciding what walls get waterproofed, follow this basic rule: Waterproof any foundation wall that has earth on one side and usable space on the other, including.