U Factor and SHGC Info
Performance Data for 450, 460 and 500 Series Windows
Glass
Single Hung
Dual 5/8" OA insulated
U-Factor SHGC
Picture Window
VT
U-Factor
SHGC
VT
Clear air
Clear air
no grilles
w/ grilles
.48
.48
.64
.57
.67
.60
.47
.47
.67
.60
.70
.62
E66 LoE air
E66 LoE air
E66 LoE argon
E66 LoE argon
no grilles
w/ grilles
no grilles
w/ grilles
.34
.34
.29
.29
.23
.21
.22
.20
.52
.47
.52
.47
.32
.32
.27
.27
.24
.22
.23
.21
.55
.49
.55
.49
Performance Data for 600 Casement Window
Glass
Casement/Awning/Picture
Dual 3/4" OA insulated
U-Factor SHGC
Picture Window
VT
U-Factor
SHGC
VT
Clear air
Clear air
no grilles
w/ grilles
.41
.41
.53
.48
.55
.49
.46
.46
.70
.63
.73
.66
E66 LoE air
E66 LoE air
E66 LoE argon
E66 LoE argon
no grilles
w/ grilles
no grilles
w/ grilles
.29
.29
.26
.26
.19
.17
.18
.17
.43
.39
.43
.39
.29
.29
.25
.25
.24
.22
.24
.22
.57
.52
.57
.52
For more Performance Data, Energy Ratings or additional Glazing Options, go to legacyvinylwindows.com.
Check local jurisdictions for current energy codes.
ENERGY STAR Residential Windows Version 6.0
specification, effective 1/1/15;
**Northern Zone prescriptive, effective 1/1/16.
1813 Kelly Blvd. Carrollton, Texas 75006
Phone 972.996.5165
Fax 972.996.5194
www.legacyvinylwindows.com