4000 Replacement

Windows with Grids

EcoShield Windows

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NFRC Testing Chart
Effective Date: March 5th, 2018

Thermal Performance Data - 4000 Double HungEnergy Star
Glass TypeU-ValueSHGCVLTCRCompliance
DOE - R5 - TripleArgon/Argon - Low E/Low E0.210.180.3272All Zones
Low E w/ Argon0.280.230.4259NC,SC,S
High Perf. Low E0.310.230.4256S
ClearClear-Air-Clear0.440.510.5246

 

Thermal Performance Data - 4000 Picture WindowEnergy Star
Glass TypeU-ValueSHGCVLTCRCompliance
DOE - R5 - TripleArgon/Argon - Low E/Low E0.200.190.3474All Zones
Low E w/ Argon0.260.250.4565N,NC
High Perf. Low E0.300.250.4560NC
ClearClear-Air-Clear000

 

Thermal Performance Data - 4000 Rolling WindowEnergy Star
Glass TypeU-ValueSHGCVLTCRCompliance
DOE - R5 - TripleArgon/Argon - Low E/Low E0.240.190.3269All Zones
Low E w/ Argon0.280.240.4463NC,SC,S
High Perf. Low E0.320.240.4459S
ClearClear-Air-Clear0.450.520.5446

 

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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

Product information on this site is subject to change without notice.
Please contact your dealer or customer service representative for the most up to date information.