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HISTORIC
WOOD
WINDOWS



     Repair vs. Replace
Windows Need Work?

The Dilemma: Repair vs. Replace
    Assess overall condition


     Painted shut
     Weights dropped
     Ropes frayed/ stuck
     Broken glass
     Glazing chipped, broken
     Sash or frame rotted/ termite
      damaged
Historic Wood Windows vs. Modern
Replacement Windows: The Issues
    Aesthetics/ Historic Integrity




    Longevity/ Maintenance




    Energy Savings




    Environment




    Economics

Historic Wood Windows: Aesthetics

    Appropriate for home style


    Retain historic integrity/

    original fabric of your home
    Custom shapes and styles

    difficult/expensive to replace
    Appropriate historic profile




“Historic wood windows are
  an important part of what
  gives your older building
        its character.”
Replacement Windows: Aesthetics

    Style/ configuration/ shape/ size


    Inaccurate historic profile (muntins,

    frame)
    Inappropriate installation details

    (sills, mullions, casings)
    Bright white….

Historic Wood Windows: Longevity

    Your wood windows already have a 75+year


    track record of service
    Infinitely repairable with standard tools


    Made of old growth lumber



“If your wood windows are 60
years old or older, chances are that
the wood they are made of is old
growth—dense and durable wood
that is now scarce. Even high-
quality new wood windows, except
for mahogany, won’t last as long as
historic wood windows.”
Replacement Windows: Longevity

    Replacement wood windows

        Poor quality of wood rots in Florida’s climate
    

    Vinyl , metal, metal clad


    Generally a 20 year max. life for

    replacement windows
        Not repairable (No Maintenance=Can’t be
    
        Maintained)
        Springs give way, seals break, glass clouds
    
        Replacement windows are called “replacement”
    
        for a reason. Manufacturers often offer lifetime
        warrantees for their windows. What they don’t
        make clear is that 30% of the time, a
        replacement window will be replaced within 10
        years.
Historic Wood Windows vs. Replacement
Windows: Energy Savings
    Studies have demonstrated that a historic wood

    window, properly maintained, weather-stripped and with a
    storm window, can be just as energy efficient as a new
    window
    Windows contribute only 10-12% of overall infiltration to the

    building envelope. Much more infiltration occurs at roof
    eaves, foundations and even through wall receptacles, dryer
    and plumbing vents and fireplaces.
    According to studies, it can take 240 years to recoup enough

    money in energy savings to pay back the cost of installing
    replacement windows
    Opening your windows during temperate months in Florida

    (and turning off your AC) provides better energy savings
    More cost effective energy savings ideas include

    awnings, shutters, window treatments… plus
    insulation, caulk/seal, solar attic fans…
Historic Wood Windows:
Environmental Issues
    Embodied energy=energy to produce existing


    windows
    Lead concerns with rehab of wood windows

Replacement Windows:
Environmental Issues
    Energy required to construct new windows


    Replacement windows that contain vinyl or PVC

    are toxic to produce and create toxic by-products
    Each year, Americans demolish 200,000

    buildings. That is 124 million tons of debris, or
    enough waste to construct a wall 30 feet high
    and 30 feet thick around the entire U.S.
    coastline. Every window that goes into the dump
    is adding to this problem.
    Aluminum, vinyl and glass are among the

    greediest materials in terms of energy
    consumption and resource depletion
Historic Wood Windows: Economics

    Cost to replace vs.


    repair
    Life cycle cost


     Maintenance   vs.
      future replacement
    Return on

    investment
     Energy

     Resale   value of home
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Why Save Historic Windows

  • 1. HISTORIC WOOD WINDOWS Repair vs. Replace
  • 2. Windows Need Work? The Dilemma: Repair vs. Replace Assess overall condition   Painted shut  Weights dropped  Ropes frayed/ stuck  Broken glass  Glazing chipped, broken  Sash or frame rotted/ termite damaged
  • 3. Historic Wood Windows vs. Modern Replacement Windows: The Issues Aesthetics/ Historic Integrity  Longevity/ Maintenance  Energy Savings  Environment  Economics 
  • 4. Historic Wood Windows: Aesthetics Appropriate for home style  Retain historic integrity/  original fabric of your home Custom shapes and styles  difficult/expensive to replace Appropriate historic profile  “Historic wood windows are an important part of what gives your older building its character.”
  • 5. Replacement Windows: Aesthetics Style/ configuration/ shape/ size  Inaccurate historic profile (muntins,  frame) Inappropriate installation details  (sills, mullions, casings) Bright white…. 
  • 6. Historic Wood Windows: Longevity Your wood windows already have a 75+year  track record of service Infinitely repairable with standard tools  Made of old growth lumber  “If your wood windows are 60 years old or older, chances are that the wood they are made of is old growth—dense and durable wood that is now scarce. Even high- quality new wood windows, except for mahogany, won’t last as long as historic wood windows.”
  • 7. Replacement Windows: Longevity Replacement wood windows  Poor quality of wood rots in Florida’s climate  Vinyl , metal, metal clad  Generally a 20 year max. life for  replacement windows Not repairable (No Maintenance=Can’t be  Maintained) Springs give way, seals break, glass clouds  Replacement windows are called “replacement”  for a reason. Manufacturers often offer lifetime warrantees for their windows. What they don’t make clear is that 30% of the time, a replacement window will be replaced within 10 years.
  • 8. Historic Wood Windows vs. Replacement Windows: Energy Savings Studies have demonstrated that a historic wood  window, properly maintained, weather-stripped and with a storm window, can be just as energy efficient as a new window Windows contribute only 10-12% of overall infiltration to the  building envelope. Much more infiltration occurs at roof eaves, foundations and even through wall receptacles, dryer and plumbing vents and fireplaces. According to studies, it can take 240 years to recoup enough  money in energy savings to pay back the cost of installing replacement windows Opening your windows during temperate months in Florida  (and turning off your AC) provides better energy savings More cost effective energy savings ideas include  awnings, shutters, window treatments… plus insulation, caulk/seal, solar attic fans…
  • 9. Historic Wood Windows: Environmental Issues Embodied energy=energy to produce existing  windows Lead concerns with rehab of wood windows 
  • 10. Replacement Windows: Environmental Issues Energy required to construct new windows  Replacement windows that contain vinyl or PVC  are toxic to produce and create toxic by-products Each year, Americans demolish 200,000  buildings. That is 124 million tons of debris, or enough waste to construct a wall 30 feet high and 30 feet thick around the entire U.S. coastline. Every window that goes into the dump is adding to this problem. Aluminum, vinyl and glass are among the  greediest materials in terms of energy consumption and resource depletion
  • 11. Historic Wood Windows: Economics Cost to replace vs.  repair Life cycle cost   Maintenance vs. future replacement Return on  investment  Energy  Resale value of home