sábado, 6 de fevereiro de 2010


What is Fenestration?

Fenestration: Any opening in a building's envelope including windows, doors and skylights.

Windows, doors, skylights and curtain wall manufacturers are constantly improving and re-designing their products to meet the needs of their customers.
How do these customers know the benefits they can get from new technology?
        By looking for the NFRC label or Label Certificate and understanding what NFRC ratings mean.
There are a number of resources available to assist you in this area
  • Information on the NFRC Label basic explanation of the NFRC label and rating system
  • NFRC Fact Sheets explain the various issues involved in comparing energy related fenestration performance - from U-factor to Daylighting; from Condensation Resistance to Solar Heat Gain.

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