Superstructure Inspection Checklist

Check cavity width is maintained at minimum 50mm (or as designed) and clear of mortar droppings

Verify wall ties installed at correct centres (900mm × 450mm max) and slope outwards to outer leaf

Confirm DPC is continuous, correctly lapped and at minimum 150mm above finished ground level

Inspect lintels for correct specification, adequate bearing (min 150mm) and correct orientation

Check cavity trays are dressed correctly with stop ends and weep holes at max 900mm centres

Verify blockwork bond pattern is correct with perpends filled and coursing level

Confirm movement joints are positioned per design and filled with compressible filler + sealant

Check wall plate straps are fitted at correct centres (max 2m) and properly embedded

Verify party wall construction matches Robust Details or approved drawing for sound separation

Confirm fire stopping at party wall / separating wall junction with roof is complete and continuous

Check window and door reveals — DPC, insulation returns and cavity closers correctly installed

Verify meter box positions and service penetrations are correctly sealed and fire-stopped

Confirm head restraint straps fitted to gable walls at correct centres

Check coursing gauge is consistent and within tolerance (±3mm per course)

Verify that any steel beams or columns have correct fire protection and bearing plates

Confirm balcony / bay window construction matches structural engineer details

Check scaffold ties have not damaged cavity insulation or cavity trays

Verify first floor joist hangers are correct specification and fully engaged into masonry

Confirm render carrier board, mesh and bellcast bead installed correctly where specified

Check subfloor ventilation (suspended floors) or radon sump pipework is correctly installed