One worker was killed and three others were injured on April 2 when the structure near Argyle High School collapsed. Five days later, a second worker was run over by a truck at the same site and killed.
The collapse, captured on security camera video from four different angles, seems to come without warning.
Every bit of the building's metal frame hits the ground in seconds.
The Argyle ISD is doing a safety audit of all its construction and renovation projects. The district says it thoroughly vets all contractors.
Argyle Superintendent Telena Wright says the safety audit will "add another level of standards to our vetting process for future construction projects."
Northstar Builders is the lead contractor. The company has agreed to suspend work on the activity center project and other projects underway or scheduled at the school district.
"With these measures, our goal is to verify contractors of Argyle ISD are taking every step possible to avoid preventable accidents," said Argyle School Board President Eric Fields.
Federal safety investigators are in the middle of their investigation to find why the building collapsed.