What are the re-anchoring ties or anchors intended to do?
One must first remember that during construction, the ORIGONAL tie or anchor was designed to act as a load transferal system between the veneer and the back-up. In order to prevent the veneer from deflecting excessively, ties are spaced at predetermined intervals that transfer the live load of the veneer to the structural back-up. This maintains a somewhat rigid facade that will repel the elements of wind, rain, snow and ice from the occupants. An unstable veneer is subject to excessive deflection which causes cracking and will lead to excessive moisture penetration. This scenario will lead to other issues such as mold, mildew, or corrosion of other building elements. A restoration anchor will need to resist live loads, transfer the loads to the back-up structure, add stiffness to the veneer and sustain a long term design life for the structure. Structural engineers in your local would be most familiar with the live load criteria’s. An anchoring selection can then be made.
