Confirm the unit is solid and sound. Old brick can be strong overall but locally cracked or moisture damaged.
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
Drill in the brick rather than a random joint unless the system allows joints. Reduce hammer action if the unit crumbles.
Common mistake
Do not assume new-brick data applies to old masonry without checking the hole and material.
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?