220 New Construction

Windows with Grids

EcoShield Windows


NFRC Testing Chart
Effective Date: March 5th, 2018

Thermal Performance Data - 220 Double HungEnergy Star
Glass TypeU-ValueSHGCVLTCRCompliance
Energy Star U40.240.240.4351All Zones
Energy Star III0.280.330.4663NC
Low E w/ Argon0.290.250.4659NC
High Perf. Low E0.330.250.4655


Thermal Performance Data - 220 Picture WindowEnergy Star
Glass TypeU-ValueSHGCVLTCRCompliance
Energy Star U40.210.260.4451N,NC
Energy Star III0.260.350.4962N,NC
Low E w/ Argon0.260.270.4961N,NC
High Perf. Low E0.290.270.4958NC


Thermal Performance Data - 220 Rolling WindowEnergy Star
Glass TypeU-ValueSHGCVLTCRCompliance
Energy Star U40.240.240.4147All Zones
Energy Star III0.270.330.4563N,NC
Low E w/ Argon0.280.250.4559NC
High Perf. Low E0.320.250.4556


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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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