The designer enjoyed the look flat lock panels bring to the design of the California Proton Treatment Center, but wanted an extremely flat and smooth metal façade for a better aesthetic appearance. They wanted to veer away from the look of single skin aluminum which has a tendency to oil can. MDSI Series 60 Flat Lock Shingle System utilizing ACM was a perfect solution. Metal Design Systems offered design assistance to lay out the joints and maximize material usage, which contributed successfully to the overall budget of the project. The MDSI Flat Lock Panels cover the entire exterior façade of this section of the campus, with a consistent look, and expertly trimmed out around each of the windows.