A Vikings official pushing for a new, publicly financed stadium says the team will pay about a third of what it would cost to build a stadium without a roof. State lawmakers may opt for a more expensive covered facility. Lester Bagley said Wednesday that the Vikings don't need a roof, but understand an outdoor stadium might not get legislative approval when lawmakers take up the debate again in February. Bagley says the Vikings see it as a precedent that the Minnesota Twins paid about one-third of the cost of outdoor Target Field.