Document GKGnVGadzegq7p93JymKVK1Yq
Plaster In.) on metal lath--furred No plaster--deco rated rigid or build ing board interior
finish (H in.)--
furred
Plaster (M in.) on
metal lath attached to furring strips-- furred apace (over %-\n. wide) faced oneaids with bright aluminum foil ! Plaster (M, In.) on metal lath attached ; to furring strips i (2 in.6)--flexible in| sulation (} in.) be tween furring stripe (one air space)
Heating Ventilating Air Conditioning Guide 1938
( )Table 4. Coefficients of Transmission U of Masonry Walls
.. with Various Types of Veneers .
Coefficients ore expressed in Btu per hour per square foot per degree Fahrenheit difference in temperature between the air on the two sides, and are based on a wind velocity of 16 mph.
TYPICAL CONSTRUCTION
TYPE OF WALL
Facing
Backing
WiU, Na
4 in. Brick Veneer*
6 in.
,5iu "in. Hollow Tile6
12 in.
37 38 39 40
Chapter 5. Heat Transmission Coefficients and Tables
INTERIOR FINISH
Uninsulated Walls
Insulated Walls
i oa 1
o If
a
P
If Ijsi X
.2 o s.s
g
gx 3-, 3*1
If! sis
gx a-w* 31 .Sg dj a-Xg x|| i=l sfl
fiT -s* 5 a
cm'C.5
gjJ&g .g-S slip
Is V lisssa
A B C D E
F
GH
I
J
K
L
0.34 0.24 0.25 0.24
0.33 0.24 0.25 0.24
0.34 0.27
0.32 0.26
0.23 0.20
0.24 0.21
0.23 0.20
0.19
0.19 0.19
0.16
0.19 0.16 0.18 0.14
0.18 0.14 0.16 0.13
0.13 0.12
0.12 0.11
0.19
0.19 0.19
0.16
0.11 0.11
0.11
0.10
0.17
* 0.17
0.17 0.15
4 in. Brick Veneer*
6 in. 10 in. Concrete 16 in.
41
42 43
4 in- Brick Veneer*
\ 4 in. Cut-Stone Veneer*
8 in. Cinder Blocks 8 in. Cinder Blocks -- Cores filled with granulated cork. 5.12 lb per cu ft. 12 in. Cinder Blocks 12 in. Cinder Blocks -- Cores filled with granulated cork, 5.24 lb per cu ft.
8 in. Concrete Blocks 8 in. Concrete Blocks--Cores filled with . granulated cork. 5.14 lb per cu ft. 12 in. Concrete Blocks 8 in. Haydite Block 8 in. Haydite Block--Cores filled with granulated cork. 5.06 lb per cu ft. 12 in. Haydite Block 12 in. Haydite Block--Cores filled with granulated cork, 5.6 per cu ft.
44
45 46
47 48
49 50 51
52 53
54
8 in. 12 in. Common Brick
16 in.
55 56 57
0.57 0.53 0.33 0.35 0.33 0.48 0.45 0.30 0.31 0;30 0.39 0.37 0.26 0.27 0.26
0.24 0.22
0.20
0.23 0.17 0.14 0.22 0.16 0.14 0.19 0.15 0.13
0.24 0.22
0.20
0.35 0.33 0.24 0.25 0.24 0.19 0.18 0.14 0.12
0.20 0.19 0.16 0.16 0.16 0.13 0:13 0.11 0.10 0.31 0.30 0.22 0.23 0.22 0.18 0.17 0.14 0.12
0.18 0.18 0.15 0.15 0.15 0.44 0.42 0.28 0.30 0.28
0.13 0.21
0.12 0.10 0.09 0.21 0.16 0.13
0.34 0.32 0.24 0.25 0.23 0.40 0.38 0.26 0.28 0.26 0.31 0.29 0.23 0.23 0.22
0.19 0.20 0.18
0.18 0.14 0.12
0.20 0.15 0.13 0.17 0.14 0.12
0.17 0.16 0.14 0.14 0.14 0.29 0.28 0.21 0.22 0.21
0.12 0.17
0.12 0.10 0.09 0.17 0.13 0.12
0.14 0.14 0.12 0.12 0.12 0.10 0.10 0.09 0.08
0.37 0.35 0.25 0.26 0.25 0.28 0.27 0.21 0.21 0.21 0.23 0.22 0.18 0.18 0.18
0.19 0.17
0.15
0.19 0.15 0.13 0.16 0.13 0.12 0.14 0.12 0.11
0.19
0.13 0.18
0.13 0.21
0.19 0.20 0.18
0.12 0.17
0.10
0.19 0.17 0.15
0.13 0.12
0 11
0.21 0.20 0.18
0.11
0.09 0.11
0.08 0.12
0.11 0.11 0.11
0.08 0.10
0.07
0.11 0.10 0.095
0.17
0.12 0.16
0.12 0.19
0.17 0.18 0.16
o:u 0.16
0.10
0.17 0.15 0.14
4 in. Cut-Stone Veneer*
6 in.
.!" Hollow Tile6 iu in. 12 in.
58
59 60 61
4 in. Cut-Stone Veneer*
6 in. 10 in. Concrete 16 in.
'62 63 64
Computed from factors marked by * io Table 2. *Based on the actual thickness of 2-in. furring strips.
*The 6-in.. 8-in. and 10-in.tile figures are based on two cells in the direction of heat flow. tile is based on three cells in the direction of heat flow.
i no
The 12-ia-
0.37 0.35 0.25 0.26 0:25 0.34 0.24 0.25 0.24
0.3d 0.33 0.24 0.25 0.24 0.20 0.20 0.21 0.20
0.20 0.19 0.19 0.17
0.19 0.15 0.19 0.15 0.18 0.14 0.16 0.13
0.13
0.13 0.12
0.11
0.20
0.19 0.19
0.17
0.11 0.11
0.11
0.10
0.18 0.17 0.17
0.15
0.61
0.51 0.41
0.56 0.47
0.38
0.34 0.31 0.26
0.36 0.32 0.28
0.34 0.31 0.26
0.25 0.23 0.20
0.24 0.18 0.15
0.22 0.17 0.14 0.20 0.15 0.13
0.25
0.23 0.21
0.13 0.12 0.11
0.22.
0.20 0.18
^Calculations include cement mortar (H in.) between veneer or facing and backing. /a ^ on one 811 In direction of heat flow. nr>-..i^crP?xrf mm^.rane should be provided between the outer material and the insulation fill to evcDl possible wetting by absorption and a subsequent lowering of efficiency.
107