Serving Western Washington since 1998. (206) 525-5575 (phone, no text) info@doublehungwindowrestoration.com
Don't just take my word for it...
The following are external resources for information on the value of historic windows.
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Washington State Department of Archaeology and Historic Preservation Window Preservation Guidance
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Association of Preservation Technology Bulletin. What replacement windows can't replace: The real cost of removing historic windows. Walter Sedovic and Jill Gotthelf. 2005. APT Bulletin 36(4): 125 - 129.
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National Trust for Historic Preservation. Saving windows, saving money Report that offers insight for homeowners weighing the financial and energy tradeoffs between replacing or repairing older, less efficient windows.
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National Park Service. The Secretary of the Interior's Standards for the Treatment of Historic Properties with Guidelines for Preserving, Rehabilitating, Restoring and Reconstructing Historic Buildings.
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National Park Service. Preservation Brief # 3: Improving Energy Efficiency in Historic Buildings
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National Park Service. Preservation Brief #9: The Repair of Historic Wooden Windows
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Building Conservation (UK). Windows and Heat-loss; How to increase thermal efficiency non-destructively
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Building Conservation (UK). Thermal Performance of Historic Windows