Wall construction details
From ASHRAE (1989), with permission
Click here to see definitions of layer codes and thermal properties
Wall description | Group Number | Description of construction | Weight, lb/ft2 |
U value, Btu/h·ft2·°F |
Code numbers for layers |
4-in face brick + brick | C |
Airspace + 4-in face brick |
83 |
0.358 |
A0 A2 B1 A2 E0 |
D |
4-in common brick |
90 |
0.415 |
A0 A2 C4 E1 E0 |
|
C |
1-in insulation or airspace + 4-in common brick |
90 |
0.174-0.301 |
A0 A2 C4 B1/B2 E1 E0 |
|
B |
2-in insulation + 4-in common brick |
88 |
0.111 |
A0 A2 B3 C4 E1 E0 |
|
B |
8-in common brick |
130 |
0.302 |
A0 A2 C9 E1 E0 |
|
A |
Insulation or airspace + 8-in common brick |
130 |
0.154-0.243 |
A0 A2 C9 B1/B2 E1 E0 |
|
4-in face brick + (lightweight or heavyweight concrete block) | E |
4-in block |
62 |
0.319 |
A0 A2 C2 E1 E0 |
D |
Airspace or insulation + 4-in block |
62 |
0.153-0.246 |
A0 A2 C2 B1/B2 E1 E0 |
|
D |
8-in block |
70 |
0.274 |
A0 A2 C7 A6 E0 |
|
C |
Airspace or 1-in insulation + 6-in or 8-in block |
73-89 |
0.221-0.275 |
A0 A2 B1 C7/C8 E1 E0 |
|
B |
2-in Insulation + 8-in block |
89 |
0.096-0.107 |
A0 A2 B3 C7/C8 E1 E0 |
|
Heavyweight concrete wall + (finish) | E |
4-in concrete |
63 |
0.585 |
A0 A1 C5 E1 E0 |
D |
4-in concrete + 1-in or 2-in insulation |
63 |
0.119-0.200 |
A0 A1 C5 B2/B3 E1 E0 |
|
C |
2-in insulation + 4-in concrete |
63 |
0.119 |
A0 A1 B6 C5 E1 E0 |
|
C |
8-in concrete |
109 |
0.49 |
A0 A1 C10 E1 E0 |
|
B |
8-in concrete + 1-in or 2-in insulation |
110 |
0.115-0.187 |
A0 A1 C10 B5/B6 E1 E0 |
|
A |
2-in insulation + 8-in concrete |
110 |
0.115 |
A0 A1 B3 C10 E1 E0 |
|
B |
12-in concrete |
156 |
0.421 |
A0 A1 C11 E1 E0 |
|
A |
12-in concrete + insulation |
156 |
0.113 |
A0 C11 B6 A6 E0 |
|
Metal curtain wall | G |
With/without airspace + 1-in/2-in/3-in insulation |
5-6 |
0.091-0.230 |
A0 A3 B5/B6/B12 A3 E0 |
Frame wall | G |
1-in to 3-in insulation |
16 |
0.081-0.178 |
A0 A1 B1 B2/B3/B4 E1 E0 |