By Joel Thomas, CBS 11 News

ARLINGTON (CBSDFW.COM) – Thirty stories high, barely visible to the casual observers down below, men who appeared like tiny specks worked on top of the enormous Cowboys Stadium roof.

Their job was to clear the ice from the roof that only a day before broke free, falling in patches on workers below and injuring six.

If they didn’t get the job done before the Super Bowl?  “That’s not an option,” said Chief Don Crowson of the Arlington Fire Department. “We’re going to do whatever is necessary, stay there through the night and make sure its taken care of it.”

Thirty people tethered themselves to narrow walkways on the roof; fire crews, building engineers and stadium workers.

They tried turning up the heat in the stadium — that freed some of the larger patches of ice.

The crews used low pressure hoses to spray warm water on the remaining ice clinging to the stadium and then chipped it away.  Large chunks of ice were freed and allowed to make the long slide down the roof toward the gutters where they were later broken down further and melted.

“A lot of the snow and ice has melted,” said Crowson. “Our main problem is in the gutter areas, right near  the lip of the building we believe represents a hazard.”

Workers will repair or remove tents damaged by ice and snow slides.  The stadium is on full lockdown prior to the game. Authorized personnel only are let in, and only after close inspection including metal detector scanning.