Staff gives five‑minute field guide on historic windows; commissioners discuss a workshop and repair options

At the start of the Aug. 19 meeting, Historic Preservation staff delivered a five‑minute field guide on historic windows, energy efficiency, and environmental sensitivity. Staff noted that many early buildings employed passive design features (operable windows, clerestory, transoms) and that common energy issues in rehabilitation focus on reducing air infiltration around windows and improving attic/wall insulation. The presentation highlighted low‑cost measures such as weatherstripping and exterior storm windows, citing a Window Preservation Standards Collaborative study that showed weatherstripping combined with storms can meet or exceed 2012 code thresholds for air infiltration. Staff also referenced guidance from the Secretary of the Interior and resources for repairing wood windows rather than replacing them. Commissioners and members of the public discussed interest in a hands‑on window workshop. Staff reported contact with a trainer (a Window Preservation Alliance connection) and suggested options: workshops for residents, targeted sessions for real‑estate agents, or other audiences. Commissioners agreed to refine goals and timeline and to return with proposals; staff said she will coordinate and that Jesse will manage logistics in September when the presenter is absent. The presentation set context for later agenda items involving window condition and replacement on several properties discussed that evening.