Historic Preservation Resources  

Historic Preservation

• National Trust for Historic Preservation (NTHP)
• Office of Historic Preservation (OHP)
• NEW! OHP's Section on Substainability
• California Preservation Foundation
• Secretary of the Interior Standards and Guidelines

Focus on Historic Wood Windows

• OHP, Window Repair and Retrofit: Studies & Research
  Of particular interest:
  • Improving the thermal performance of traditional windows by Paul Baker for Historic Scotland. (This is a PDF)
  • What Replacement Windows Can't Replace: The Real Cost of Replacing Historic Windows Walter Sedovic and Jill Gotthelf provide an excellent discussion of the comparative value of window replacement versus repair. Many aspects of sustainability are considered
    
• (PDF format) NTHP's Tip Sheet on Historic Wood Windows