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4.. M 1i SUPPLIMENTAL STAFF REPORT CONCERNING APPLICATION FOR A CERTIFICATE OF APPROPRIATENESS Date: Application Number: Property Location: Property Owner: September 9, 2003 2003-0908 528 South Eddy Street, South Bend, IN South Bend Community School Corporation Landmark or District Designation: Local Historic Landmark Rating: Significant: 12 In February, pursuant to the recommendations of an ad hoc Committee of the Historic Preservation Commission appointed for the purpose, the HPC approved a Certificate of Appropriateness for certain additions and modifications to the Jefferson School Building designed to enlarge it to accommodate a greater number of students. Specifically, to demolish the boiler/furnace annex, including original structure and later connecting wing; to build additions for a library/media center and a new classroom wing; to remove a maple tree and build a bus driveway on the South lawn; and to install ADA accessibility ramps. Part of that project intentionally reserved for further study was the matter of fenestration for the new wing, and new fenestration in the existing historic part of the building. Significant additional study has been done, both by the School Corporation's architects and contractors, and by the HPC Jefferson School Committee, assisted by Architectural Historian Joann Sporleder. The result of that study is agreement between the HPC Jefferson School Committee and the School Corporation and their architects regarding the necessary characteristics for the proposed windows. Wight Construction, on behalf of the School Corporation, has drafted specifications that they believe embody the agreement reached. Those specifications form the body of this Application for Certificate of Appropriateness. The full text of the draft specifications is 19 pages. I have transmitted the full 19 pages to the HPC Jefferson School Committee. However, I believe that the parts of the specifications relevant to Historic Preservation consist of Section 08520 — Aluminum Windows, sub sections 1.5, 1.6, and 1.7, and Section 08550 — Wood Windows, subsections 1.5, 1.6, and 1.7. The remaining subsections deal with general construction standards, quality of workmanship, and other specifications relevant to the school's particular wants. RECOMMENDATION It was the understanding of staff that the aluminum clad wood windows best fit the aesthetic and dimensional requirements of the HPC and our architect, as more nearly duplication the daylight openings and the profile of the original and existing windows. Additionally, Ms. Sporleder pointed out the general thermal superiority and the interior aesthetic superiority of aluminum clad wood windows to all aluminum windows. However, since our concern is primarily with the appearance of the exterior, it is possible that an aluminum window might be found that might meet the same exterior specifications as the aluminum clad wood windows. Staff believes that the specifications submitted by Wight Construction generally satisfy the characteristics agreed by the Jefferson School Committee as adequate for a favorable recommendation, though I do note that the Wight Construction architect actually found an aluminum clad wood window within about 1% of the daylight opening of the existing window, and the specifications here presented only require daylight opening within 2% of the existing.