Building Wave Snow weight collapsed this warhead assembly building. Now its warped roof looks like a wave. Related Similar Images ...based on the tags: collapsing, rooftops... Peering at Stelco’s abandoned steel rod rolling mill, not demolished. The rectangular on the right in between is the boiler house that heated Stelco. Below the factory floor is a network of hallways and tunnels, all flooded with water. The pipes above sprayed water onto the hot coke. This sawtooth roof collapsed months later under the weight of an early snow. A long exposure of the city glow illuminating the roof, highlighting the victorian and gothic influences on the brew house. From the roof of the Clemens House, looking toward downtown St. Louis. Plaster doesn’t last long without a roof. The huge snowfalls of 2011 brought new collapses across the buildings. Often the quickest way to move between buildings was to take the roof. The inside of the complex was so maze-like, I don’t know how I would have found my way around.