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The Repair of Historic Wooden Windows
Myers, John H. Preservation Briefs: 9 The Repair of Historic Wooden Windows, Washington, DC: National Park Service, 1981.

Table of Contents

    1. Architectural or Historical Significance
    2. Physical Evaluation
    3. Repair
      1. Repair Class I: Routine Maintenance
      2. Repair Class II: Stabilization
      3. Repair Class III: Splices and Parts Replacement
    4. Weatherization
    5. Window Replacement
    6. Conclusion
    7. Additional Reading

The windows on many historic buildings are an important aspect of the architectural character of those buildings. Their design, craftsmanship, or other qualities may make them worthy of preservation. This is self-evident for ornamental windows, but it can be equally true for warehouses or factories where the windows may be the most dominant visual element of an otherwise plain building. Evaluating the significance of these windows and planning for their repair or replacement can be a complex process involving both objective and subjective considerations.

The Secretary of the Interior's Standards for Rehabilitation and the accompanying guidelines, call for respecting the significance of original materials and features, repairing and retaining them wherever possible, and when necessary, replacing them in kind.

This Brief is based on the issues of significance and repair which are implicit in the standards, but the primary emphasis is on the technical issues of planning for the repair of windows including evaluation of their physical condition, techniques of repair, and design considerations when replacement is necessary.

Much of the technical section presents repair techniques as an instructional guide for the do-it-yourselfer. The information will be useful, however, for the architect, contractor, or developer on large-scale projects. It presents a methodology for approaching the evaluation and repair of existing windows, and considerations for replacement, from which the professional can develop alternatives and specify appropriate materials and procedures.

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