Double Hung NFRC THERMAL PERFORMANCE ALL UNITS STANDARD WITH LOW-E/ARGON ENERGY STAR North North Central South Central South  U Value 0.34  YES YES YES YES  R Value 2.94  YES YES YES YES  SHGC 0.34  YES YES YES YES  VLT 0.52  — — — — * U Value shown for inswing configuration; Outswing U Value is N.NN. Casements & Awnings NFRC THERMAL PERFORMANCE ALL UNITS STANDARD WITH LOW-E/ARGON ENERGY STAR North North Central South Central South  U Value 0.34  YES YES YES YES  R Value 2.94  YES YES YES YES  SHGC 0.33  YES YES YES YES  VLT 0.49  — — — —

Patio Doors NFRC THERMAL PERFORMANCE ALL UNITS STANDARD WITH LOW-E/ARGON ENERGY STAR North North Central South Central South  U Value 0.32* YES YES YES YES  R Value 3.13  YES YES YES YES  SHGC 0.21  YES YES YES YES  VLT 0.37  — — — — * U Value shown for inswing configuration; Outswing U Value is 0.38. Special Shapes NFRC THERMAL PERFORMANCE ALL UNITS STANDARD WITH LOW-E/ARGON ENERGY STAR North North Central South Central South  U Value 0.30  YES YES YES YES  R Value 3.33  YES YES YES YES  SHGC 0.42  YES YES YES YES  VLT 0.64  — — — —