Hey, debris should not be flying off buildings because it can hurt pedestrians or cause damage to adjacent buildings. It can also be a sign of poor health and safety practices.
You can try calling the Ministry of Labour.
Health and Safety Contact Centre
Toll-free: 1-877-202-0008
TTY: 1-855-653-9260
Report incidents, critical injuries or fatalities.
https://www.labour.gov.on.ca/english...nstruction.php