Two years ago, on Dec. 12, 2010, the Metrodome roof collapsed under 16 inches of snow.
The collapsed roof forced the Vikings to move that day's game against the New York Giants to Detroit's Ford Field. The Vikings were also forced outside for a Monday night game against the Chicago Bears, which was played at the University of Minnesota.
This past Sunday, a similar snowstorm blanketed the Twin Cities. This year, the Minnesota Sports Facilities Authority cranked up the heat to hold-up the roof.
"As with all storms, we watched this weekend storm carefully," said MSFA chairwoman Michele Kelm-Helgen. "The MSFA operations staff took specific steps before and after the game. We were confident the roof would be able to handle the weather."
The new Metrodome roof has just one layer of fabric in the center of the dome, which allows heat to reach the top layer faster. The new roof also has shallower valleys between fabric tiles, which prevents snow buildup.
The repair project from the 2010 collapse cost $22.7 million.