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HEAT AND LIGHT CONTROL CHARACTERISTICS

1/8" GLASS - .030 PVB - 1/8" GLASS
GLASS
PART NUMBER
GLASS
TYPES
TRANSMITTANCE
REFLECTANCE
U-VALUE
SHADING COEFFI-
CIENT
SOLAR HEAT
GAIN COEFFI-
CIENT
Visible
%
Solar
Energy
%
Visible
Light
%
Total
Solar
Energy
%
Winter
Night-
time
Summer
Daytime
WHITE Air Air  
ISL-93 White 63 57 12 10 1.01 0.91 0.77 0.67
CLEAR
ISL-78
Clear
88
74
8
7
1
0.91
0.91
0.79
GREEN
ISL-232
Green
74
66
8
7
1
0.91
0.85
0.74
BRONZE
ISL-79
Bronze
49
49
8
7
1
0.91
0.72
0.62
GREY
ISL-90
Grey
45
49
2
5
1
0.9
0.73
0.63

INSULATED/LAMINATED GLASS PERFORMANCE

LAMINATED OUTBOARD AND NON-COATED INBOARD

1/4" LAMINATED - 1/2" AIR SPACE - 1/4" GLASS
GLASS
PART NUMBER
GLASS
TYPES
TRANSMITTANCE
REFLECTANCE
U-VALUE
SHADING COEFFI-
CIENT
SOLAR HEAT
GAIN COEFFI-
CIENT
Visible
%
Solar
Energy
%
Visible
Light
%
Total
Solar
Energy
%
Winter
Night-
time
Summer
Daytime
WHITE Air/Argon Air/Argon  
ISL-93-61 White 57 47 16 12 .47/.44 .49/.47 0.65 0.56
CLEAR
ISL-78-61
Clear
78
60
14
12
.47/.44
.49/.47
0.79
0.69
GREEN
ISL-232-61
Green
65
53
12
10
.47/.44
.49/.47
0.72
0.63
BRONZE
ISL-79-61
Bronze
44
40
10
9
.47/.44
.49/.47
0.59
0.51
GREY
ISL-90-61
Grey
40
39
7
7
.47/.44
.49/.47
0.59
0.51

ACOUSTIC PERFORMANCE

SOUND TRANSMISSION CLASS (STC)
GLASS NUMBER
GLASS TYPES
GLASS CONSTRUCTION
THICKNESS
STC
ISL-61
Clear - Monolithic
1/4" GLASS
0.230"
30
ISL-61-61
Clear IG/Unit
1/4" - 1/2" Air - 1/4"
1.0"
31
ISL-78
Single 2-ply Laminated
1/8" .030 PVB 1/8"
0.276"
34
ISL-78-61
Single Laminated IG/Unit
1/8" .030 PVB 1/8" - 1/2" Air - 1/4"
1.0" nominal
39
  • Performance data represents center of glass values calculated under the guidelines of LBNL Window 5.2 computer analysis, assuming and air mass of 1.5.
  • Tinted, Reflective and Low-E products may require heat-treating. Consult Insulite
  • (2) - 2nd Surface, (3) - 3rd Surface
  • Pyrolitic (hard-coat) Coating Vacuum Deposited (soft-coat) Coating
  • Products listed under each category may not visually match another product in the same category.
  • Consult Insulite for glass types not listed