Substructure and ground-bearing floors

5.1.15Wall ties

Substructure and walls below the DPC shall use wall ties suitable for their intended use.

Wall ties should comply with BS EN 845-1 or be assessed in accordance with Technical Requirement R3.

Where cavity insulation batts or slabs start below DPC level, the vertical and horizontal spacing of wall ties should be compatible with the spacing to be used above DPC level.