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  HGP Industries Inc.   Heat Treated and Insulating  

Insulating Glass Performance Data for Clear/Tinted Glass (A) and Reflective Glass (A)

   

Heat Treated and Insulating

HGP logo

 

Product Performance Data - Clear and Tinted Glass (A)
(I.G. units constructed of equal glass thickness with 1/2" airspace; interior lites clear)

Product

Nominal
Thickness

Transmittance
Average

Reflectance
Average

N. America
U-Value
(C)

(D)
Shading
Coefficient 

(E)
Solar
Heat Gain
Coefficient 

(F)
Relative
Heat
Gain 

IN.

MM

Daylight
%

Solar
%

(B)
UV
%

Daylight
%

Solar
%

Summer

Winter

Clear

1/8
3/16
1/4

3
5
6

81
79
78

71
65
61

56
49
46

15
15
15

13
12
12

0.55
0.55
0.55

0.49
0.49
0.48

0.89
0.84
0.81

0.76
0.72
0.70

185
176
171

Gray Tint

1/8
3/16
1/4

3
5
6

55
45
39

49
38
33

30
22
18

9
7
7

8
7
6

0.57
0.57
0.57

0.49
0.49
0.48

0.67
0.56
0.51

0.57
0.49
0.44

142
120
110

Bronze
Tint

1/8
3/16
1/4

3
5
6

62
53
48

55
45
40

31
23
19

10
9
8

9
8
7

0.56
0.57
0.57

0.49
0.49
0.48

0.73
0.64
0.59

0.62
0.55
0.50

153
135
125

Green

1/8
3/16
1/4

3
5
6

75
71
68

48
43
39

36
28
24

14
13
12

9
8
8

0.56
0.57
0.57

0.49
0.49
0.48

0.69
0.61
0.57

0.59
0.52
0.49

146
130
121

Blue Green

1/4

6

67

40

26

12

8

0.57

0.48

0.58

0.50

124

Ford
Blue

3/16
1/4

5
6

53
49

41
36

29
26

9
8

7
7

0.57
0.57

0.49
0.48

0.59
0.54

0.51
0.46

125
116

LOF
EverGreen

1/8
3/16
1/4

3
5
6

69
65
59

42
36
28

23
17
12

12
11
10

8
7
6

0.57
0.57
0.57

0.49
0.49
0.48

0.59
0.53
0.45

0.51
0.45
0.39

126
113
99

PPG
SolarGreen

1/4

6

59

28

13

10

6

0.57

0.48

0.46

0.39

99

PPG
Azurlite

1/4

6

63

25

23

11

7

0.57

0.48

0.46

0.40

100

PPG
Graylite

1/4

6

12

20

5

5

5

0.58

0.48

0.38

0.33

84

 

Insulating Glass Performance Data - Reflective Glass (A)
(I.G. units constructed of 1/4" glass thickness with 1/2" airspace; interior lites clear)

Product 

Coated
Surface 

Transmittance
Average

Reflectance
Average

N. America
U-Value
(C)

(D)
Shading
Coefficient 

(E)
Solar
Heat Gain
Coefficient 

(F)
Relative
Heat
Gain 

Daylight
%

Solar
%

(B)
UV
%

Daylight
%

Solar
%

Summer

Winter

Eclipse
Clear

1
2

36
36

38
38

8
8

46
42

32
27

0.55
0.56

0.48
0.48

0.54
0.55

0.46
0.47

115
117

Eclipse
Blue-Green

1
2

30
30

23
23

5
5

46
33

30
17

0.56
0.57

0.48
0.48

0.36
0.39

0.31
0.33

80
85

Eclipse
Gray

1
2

17
17

20
21

3
3

45
13

31
11

0.56
0.57

0.48
0.48

0.34
0.38

0.29
0.32

76
84

Eclipse
Bronze

1
2

21
21

24
24

3
3

46
19

32
14

0.56
0.57

0.48
0.48

0.38
0.41

0.32
0.35

83
90

Eclipse
Gold

1
2

NA
29

NA
26

NA
2

NA
43

NA
32

NA
0.56

NA
0.48

NA
0.40

NA
0.35

NA
89

Solarcool
Gray

1
2

15
16

18
18

6
6

36
11

30
10

0.57
0.58

0.48
0.48

0.31
0.35

0.27
0.30

70
78

Solarcool
Bronze

1
2

19
19

21
21

6
6

37
14

30
12

0.56
0.58

0.48
0.48

0.35
0.39

0.30
0.33

78
85

Solarcool
Azurlite

1
2

23
24

11
11

6
7

37
20

30
10

0.57
0.58

0.48
0.48

0.23
0.27

0.20
0.23

54
62

Solarcool
Graylite

1
2

5
5

12
12

2
2

36
5

30
6

0.57
0.59

0.48
0.48

0.25
0.29

0.22
0.25

58
67

Sunglass
Reflective Blue

1
2

17
17

17
17

6
6

39
15

32
12

0.56
0.58

0.48
0.48

0.30
0.34

0.26
0.29

68
75

 



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