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Ames City subcommittee weighs double vs. triple‑pane windows for Old Town Historic District; plans draft ordinance language
Summary
A subcommittee recommended language to allow insulated double‑pane windows in some cases while generally discouraging triple‑pane units that alter historic character; the commission asked for a draft to review at the November meeting and to potentially refer to City Council.
Commissioners discussed research from a subcommittee charged with reconciling Ames’ energy goals with its historic preservation ordinance for the Old Town Historic District. The subcommittee reported outreach to other communities and preservation planners and said triple‑pane glazing is generally not recommended where visual historic character must be preserved; double‑pane insulated glazing units may be acceptable in limited situations.
An unnamed subcommittee researcher summarized findings:…
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