As part of a term agreement for the $65 million transformation of Niagara Falls State Park in Niagara Falls, New York, T.Y. Lin International (TYLI) designed the replacement of the copper roofing system for the Regional Administration Building. The 9,000-square-foot building dates back to its 1902 design as a shelter for America’s first State Park, which was created in 1885.
TYLI’s architectural design retained the structure’s historical significance in the updated design, even utilizing the original ornamentation. The original roof system consisted of copper standing seam roof panels on half-round battens. The end of each batten is adorned with a copper acroterion with a classical leaf motif. The gables over the main entry and at each end of the building have a large copper ornament that complements the acroterion design.
The building was equipped with a built-in gutter system, which in the past was lined with asbestos-containing mastic and flashing materials. The internal building roof drainage system contained within the walls of the structure had historically created leakage issues. TYLI documented the historic roof system and conducted a detailed evaluation of the components and design options.
- TYLI replaced the roofing system with a new copper system with detailing to match the original components.
- Asbestos-containing materials were removed, and a new roofing sheathing layer was installed over the original roof deck boards, along with a waterproofing underlayment. Once the standing seam roofing sheets were replaced, the original acroterions and ornamentation were reinstalled.
- As part of TYLI’s new design, the gutter system drains to the exterior into a new copper fascia sumps and conductor head system. The State Office for Historic Preservation approved this design modification, which allows adequate drainage while avoiding major interior renovations to access, modify, or replace internal piping.
- The project included installation of a new foundation wall waterproofing system, reconstruction of window wells, minor masonry repointing, and removal and reinstallation of damaged limestone masonry.