Thursday, May 3, 2012

What Are Ratings for the Vinyl Windows?

Many of you would like to find out how to interpret vinyl window ratings that you can find on a label. In fact, some of you may have no idea that there usually is some form of displayed information on windows which you can find very useful.

what are ratings for the vinyl windows

The National Fenestration Rating Council (NFRC) was formed some time ago by builders, specifiers, manufacturers, designers, architects, suppliers, code officials, utilities, and government agencies. The members of NFRC collectively devised a window energy rating system, which based on vinyl window performance.

The members of NFRC came up with a series of ratings based on several important measurements of a window that shows its performance or opposite non-performance.

These vinyl window ratings that were devised look at:

  • Air Leakage
  • U-Factor
  • Visible Transmittance
  • Solar Heat Gain Coefficient

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