Performance

NFRC U-Value .30-.82
Solar Heat Gain Coefficient        .21-.54
Design Pressure 40-75 psf
STC Rating 27-36

Learn more about the ENERGY STAR requirements for every region of North America.

1 Performance values for a particular product depend on size and options purchased. Appropriate selection of Pella products which conform to all applicable laws, ordinances, building codes and safety requirements is the sole responsibility of the architect, building owner and/or contractor. Check with your local Pella representative and building code officials for specific information.