MINNEAPOLIS (AP) -- It could take five to six months to replace the snow-damaged roof of the Metrodome.

That assessment came Thursday from Ted Mondale, the new chairman of the Metropolitan Sports Facilities Commission.

The agency is still awaiting a report from engineers on the extent of damage to the home of the Minnesota Vikings, as well as a recommendation on whether to simply repair torn panels or replace the roof altogether.

Mondale says if the roof needs to be replaced it would likely take five to six months, which could interfere with next season.

The NFL's exhibition season begins in August, though the 2011 schedule has not been announced.

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