The Treasury Building is the oldest departmental building in Washington and has had a great impact on the design of other governmental buildings. At the time of its completion, it was one of the largest office buildings in the world. It served as a barracks for soldiers during the Civil War and as the temporary White House for President Andrew Johnson following the assassination of President Lincoln in 1865. The Treasury Building is unquestionably a monument of continuing architectural and historical significance. In acknowledgment of the building’s significance, it was declared a National Historic Landmark in 1972.
| PROJECT SIZE | 92,000 square feet |
| PROJECT LENGTH | 1996 – 1997 |
| CONTRACTOR | CitiRoof Corp. |
| ARCHITECT | Manuel Sanches, AIA |
| DECK TYPE/INSULATION | Concrete |
| INSULATION | Polyisocyanurate |
| FASTENERS | SOPRAFIX® |
| BASE PLY | SOPRALENE® Flam 180 |
| TOP PLY | SOPRALENE® Flam 180 FR GR |
| FLASHING (CAP) | SOPRALENE® Flam 250 FR GR |
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