Unreinforced masonry balustrades
An overview of the hazard caused by unreinforced masonry balustrades and potential strengthening solutions.
To find solutions that are appropriate for your building, consult a structural engineer for a professional assessment.

Image courtesy of Manatū Taonga
Hazard
Pieces of masonry break off or the entire balustrade collapses.
Potential structural strengthening project
Use a similar technique as for securing parapets - fit ties horizontally, with an emphasis on fixing the balustrades back to the deck structure (diaphragm).
Possible first steps with a structural engineer
They assess the structural capacity of the balustrade and provide specifications for the required strengthening work.