Tap and inspect for delamination. The fixing must pass through non-structural finish and embed in sound masonry.
Method basis: Rigips/Knauf system guidance and Fischer/Hilti fixing-selection principles. Final parameters always come from the selected product data.
How to plan the installation
Use spacing or a sleeve to avoid crushing plaster under the bracket and repair widespread loose finish first.
Common mistake
Do not count plaster thickness as useful embedment.
Pre-start check
- Was the structural base identified rather than only the finish?
- Does the weight include contents and projection?
- Were services, edges and minimum spacing checked?
- Does the product data permit the base, direction and environment?