Dozens of workers, employed to renovate the Sydney Opera House, will meet outside the site to discuss concerns after being potentially exposed to asbestos on the job for almost a week.

The Electrical Trades Union on Tuesday moved to halt renovations after tests confirmed the presence of asbestos. The 25 workers on the project were at risk from the asbestos for almost a week, the union said in a statement. Building company Laing O’Rourke insists a comprehensive asbestos management plan was…