300 New Construction

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NFRC Testing Chart
Effective Date: March 5th, 2018

Thermal Performance Data - 300 Double HungEnergy Star
Glass TypeU-ValueSHGCVLTCRCompliance
High Perf. Low E000
Energy Star U40.230.270.4851N,NC
Energy Star III0.270.370.5252NC
Low E w/ Argon0.270.280.5252NC
ClearClear-Air-Clear0.450.620.6446

 

Thermal Performance Data - 300 Picture WindowEnergy Star
Glass TypeU-ValueSHGCVLTCRCompliance
Low E w/ Argon0.250.310.5765N,NC
Energy Star U40.250.300.5265N,NC
Energy Star III0.250.400.5765N
High Perf. Low E0.290.310.5760NC
ClearClear-Air-Clear0.450.680.7047

 

Thermal Performance Data - 300 Rolling WindowEnergy Star
Glass TypeU-ValueSHGCVLTCRCompliance
ClearClear-Air-Clear000
Energy Star U40.240.270.4751N,NC
Energy Star III0.280.370.5264NC
Low E w/ Argon0.280.290.5263NC
High Perf. Low E0.320.290.5259

 

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EcoShield Window Systems, a quality product of Kasson and Keller Inc.
Manufacturing replacement windows, new construction windows, and storm windows since 1947

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