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The major "green” building programs are neutral on the use of aluminum in window products. The focus is on performance rather than material with emphasis on: Life Cycle Analysis. All credits/points are based on Energy Star requirements and in some cases extra credits/points can be earned by exceeding the Energy Star requirements.


  • No material bias against aluminum.
  • Energy Star requirement for credits. Extra credits for surpassing Energy Star standards.
  • LEED Technical and Scientific Advisory Committee (TSAC) states: "Aluminum framed windows had the worst energy efficiency compared to wood and PVC”.
  • Reference made to Life Cycle Analysis tools:

NAHB Green Building Guidelines:

  • No material Bias against aluminum.
  • Meet or exceed Energy Star
  • Reference made to LCA
    • BEES
    • Athena

Green Building Initiative:

  • No material bias, against aluminum.
  • "Products and materials with the lowest life cycle environmental burden”
  • Reference made to LCA
    • BEES
    • Athena
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