5.1 Substructure and ground-bearing floors

Figure reference table

Fig No	Title/Description	Clause
Figure 1	Substructure on sloping ground	5.1.4
Figure 2	Diversion of existing services	5.1.5
Figure 3	Pipes bedded in walls with flexible joints	5.1.5
Figure 4	Pipes passing through a lintelled opening	5.1.5
Figure 5	Backfill around pipes within openings	5.1.5
Figure 6	Infill under slab and backfill in trenches	5.1.7
Figure 7	Substructure walls acting as temporary retaining walls	5.1.12
Figure 8	DPM/DPC protected during installation of a concrete slab	5.1.18
Figure 9	DPC at least 150mm above finished ground level	5.1.19
Figure 10	Stepped DPC levels on sloping sites	5.1.19
Figure 11	225mm clear cavity below DPC	5.1.20
Figure 12	Protection of perimeter insulation board during installation of concrete floor	5.1.22

Last updated: 2nd January 2024