This 85,400-sq-ft project was just one part of a six-part contract to replace and renovate a 500,000-sq-ft roof and provide seismic upgrades to Building 225 at Hill Air Force Base. The building, a 1940s-era aircraft hangar, serviced bombers that flew in Europe and Asia during World War II. Today, it serves as a maintenance facility that houses complex mission-critical components and is one of only five barrel-vaulted buildings known to still exist in the Air Force.

The construction team brought the 77-year-old structure back to its historic integrity, updated it to meet current building codes and added safety and energy-efficiency elements. Safety improvements include seismic upgrades for the roof and updated lightning protection for the building.

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