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Weight of Snow Deflates Fabric Roof Of Minneapolis Metrodome

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Weight of Snow Deflates Fabric Roof Of Minneapolis Metrodome
Photo: APimages/AN Heisenfelt
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The fabric roof of the Metrodome Stadium in Minneapolis collapsed on Dec. 12 under the weight of 17 or more inches of wet snow. Steve Maki, the stadium’s director of facilities and engineering, said a seven-person snow-removal crew retreated from the roof when winds gusting to 40 mph made working unsafe. Maki says that, early Sunday morning, one fabric roof panel gave way because of the snow load, which overstressed two more panels that also then failed. The roof was fabricated and installed by Birdair Inc., Amherst, N.Y., in 1981. Maki says three samples of roof fabric tested early last spring still rated above the original specifications after nearly 30 years.

 

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