The prefab housing was made out of blue aluminum siding lined with Styrofoam insulation. It had concrete floors and was arranged in neat rows in flat spots at the bases of the mountains.

这些活动房屋是由全新的铝材和聚苯乙烯泡沫绝缘材料在平整的混凝土地面上建造而成，并且被整齐地排列在山谷盆地之中。

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One danger was that the club's sound insulation was made of styrofoam, which releases toxic fumes when burned.

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