HPC of South Bend and St. Joseph County - Standards Update Draft

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City of South Bend and St. Joseph County Historic Preservation Guidelines 108 For More Information: Windows The Craftsman blog has a number of good posts about historic windows—here . The Environmental Protection Agency has a page devoted to the inherent benefits of historic homes and their windows—here . Old House Journal Online has a post on how to restore historic windows—here . The following are some general recommendations and best practices related to the preservation of historic windows . • Historic wood windows can be repaired (and vinyl ones cannot) . • Repairing your historic wood windows typically is the wisest decision both economically and environmentally . • Storm windows are recommended, not discouraged . • Storm window divisions or muntins should match those of the window behind it . • The payback on energy savings for replacement windows is typically measured in decades . • If windows must be replaced, use the same style, size, and glass-to-frame ratio as existing. • Do not increase or decrease the size of an original window . • Shutters should always be of a size and shape so that, if closed, they would exactly cover the window opening . • Repair of historic windows is recommended over replacement . The Commission will require evidence that the existing windows are beyond repair—defined as over 50% of the materials requiring replacement as part of the repair. • If replacement is required, then the new windows should look the same as the original windows . • Select windows that match the historic sash dimension, muntin configuration, reveal depths, glass-to-frame ratios, glazing patterns, frame dimensions, trim profiles, and decorative features when repair of original windows is impossible. • Original openings should never be blocked-in to accommodate stock windows. Do not install contemporary picture, glass block, or jalousie windows in exterior window openings. Do not install synthetic replacement windows (vinyl, fiberglass, etc.). • Install replacement windows that operate in the same way as the original windows-double hung windows are replaced with double-hung, and casement windows are replaced with casements . • Do not replace multi-pane windows that have true divided lites with thermal glazing windows that have false “snap-in” or applied muntins and mullions. Do not apply reflective or insulating film to the historic window glass. Do not use smoked, tinted, or reflective glass on building facades that can be seen from the public way. Do not block-in or back paint.DRAFT