MIL-HDBK-1003/19
APPENDIX A
Concrete Block Walls
SYSTEM NUMBERING CONVENTION
First digit:
Unfilled or filled (1 implies unfilled blocks and 2 implies
filled blocks)
Second digit:
R-value of night insulation (0 or 9)
Third digit:
Number of glazings (NGL) (1 or 2)
System
F
G
Uc
[alpha]
ed
Number
101
0.454
6.04
0.42
0.95
0.55
102
0.500
3.88
0.28
0.95
0.55
191
0.563
3.16
0.13
0.95
0.55
192
0.607
1.96
0.11
0.95
0.55
201
0.575
6.76
0.47
0.95
0.59
202
0.630
4.36
0.31
0.95
0.59
291
0.737
3.64
0.14
0.95
0.59
292
0.749
1.96
0.12
0.95
0.59
93
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