In the aftermath of the Sept. 11 terrorist attacks, the damaged Pentagon was in immediate need of a decisive reconstruction plan. Forrester met with Pentagon officials on Sept. 13 agreeing on a design-build effort to address the roof’s fire damage. Work began on Sept. 14 while portions of the building were still smoldering.
The restoration of the Pentagon’s roof was conducted in phases. The first phase involved damage assessment, debris removal, stabilization and temporary weather protection. This work continued in 12 hour shifts seven days a week until all occupiable areas were secured. A redesign of the roof and structural restoration followed in a second phase of work. During this phase, the MEP penthouse along the southwest side of the complex was repaired using materials matching the original construction.