The Metrodome's new roof was inflated on Wednesday morning without any problems, as the stadium's construction is almost complete.
The Teflon-coated fiberglass roof had to be replaced after collapsing in a December snowstorm. The goal was to finish construction by Aug. 1. The Vikings' first home preseason game is scheduled for Aug. 27.
"There doesn't seem to be any issues whatsoever," said Ted Mondale, the chairman of the Metropolitan Sports Facilities Commission.
"We appreciate the efforts of the MSFC and the local unionized workforce who spent countless hours replacing the Metrodome roof since its collapse last December," team president Mark Wilf said in a statement released by the team. "Today's roof inflation means the project is ahead of schedule and ensures that Mall of America Field will be the Vikings' home during the 2011 season. We are excited about getting our home-field advantage back and playing in front of Vikings fans this year.
The new roof will sit lower than the old one to prevent another collapse due to snow and strong winds, but it will look the same on the outside.
The Vikings were forced to play their last two home games at Detroit's Ford Field and TCF Bank Stadium, home to the University of Minnesota Golden Gophers, respectively.