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Tested to NFRC and AAMA specifications, Hy-Lite Block Windows offer structural and thermal efficiency benefits similar to conventional windows, and they are safety glazing approved. All Hy-Lite Block and Decorative Glass windows meet the ANSI Z97.1-1984 standard for safety and carry both AAMA and NFRC labels. For specific information for wind load, U-values and other testing information, view our Structural and Thermal Test Results PDF below.
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Test Results
Block and Decorative
Glass windows

PDF size 103 KB



CSI Specifications
Block windows only

PDF size 105 KB