Document OzdZmjaLbGQqrnanK4ggNJdxj
American Society of Heating and Ventilating Engineers Guide, 1928
0.3Z 4 1
1 ssro | L U 'O
"3 r"'H a
o S' b Oo
a3;
-2U
h- cJ
S ' r1o
o SSJ
=> c
i
. -s ^ <s
C
*S-M -A3ll U o2
fO n9
CT *2' O
OoO
rA P^l p^l O dd
r~. O rJ dd
0D H d D
& o>
14
*<3
<
-3
U,
wa- .ujz *
c >
& m
*- ^1- g'ib
ii
CM V E roj
*ir4\f
In C*M
lP O
Oo"
O C>4
o
vC9D O
r>- tn
to
CZ) CD O O o d d d d d
^D V)
to
`O'
r2
tcJl EC
-j
.O MH .'*. -<* -
s
O' J
|
o C
juCJ41
?o
CJ *iS? I--
PM
LO >Q
cM --
o
in Or O
rCM
in o~ ..r-
O oCO in
rJ
o OO o dodo d d
LxJ CJ
ol
tu i-
(n
> o
<t
Q_ 0
*> O 12
h-- <
-J
<
J-- UJ
cJ
1
joD b
c
O
CO O
u_
oO
csi
bo ^; _4_o> v5
-H J
ILw 5 IitJ
<r ; >- I5
* --\ k-
x
^ .* co | V _d * 5
O' rc > o
ci
U-*
Tf
cr
t--i
ro O
CcDr O
o
o o
in 8
in ro
sO
v> O
S
o o O O' d d d d d d d
IT X rri -- r1 C5
rooo CD 3
roO---
LA o s
rO 5
CoO
CS d d d d
p^o> d
^9 o d
o d
stf*
CP V
CM
-
5
Cr CD
o
CD
S CD
CO
o o
cr O
rM4"
n Oo
dO od
ilMn d
CO
o
sO
pn d
AJ
cO'
o JC
--
r~~ _C Pr^vil
O
fO pn o CD
rJ
cvOr O
cprj
s9' o O5
CD d d d d
rO C4
dO
rA d
s2
-
uC~O
i_r CO
LT>
2S
CO
o coo
PM in
^M- ,
rJ
CA
5
CD CD o O d d d d d d d
c>j CO < OJ OO
or o o n iconr M> PA smS>
CD C> o O o o d d o d.` d
in f-- cc>rJ o^~r. t~4 rOJ
m \D
s
coo
IA jA
E
X s o O O d d o d d' O* o*
sVr tJ cOO cvr> in m
MO
tA
v9
co
OT
P~ XM *A vO
m c5 O O O d d o* d o d d
ip sO:i ?o u
O S
SO
tn
LA CM
in
O
r~
M*
oo
oo
CO
E
in
vj)
<cr U -- CM X)
CD
O
COO
CD LPl
O m
O r-
CM
O o d d. d
>9 o o o O In nJ o
CJ
or
d S
d
co 9
4o c> CD O O O d d o o d d
o tO*~>
o
o0O0t
<D
oo
LP
o
or~Ol
<5
rO
in
o o
o d dd
M21 o
CA
o
o d
H
<s.H-
O -0
AO
-^*
/-v
1_
CV.
q} O-
t#s
UUVUUojliai Q.C1.C1.D.Q-O.Q.CL.
U-
gD o
' eC O o o
hJs
pi^'lOOfr>'^lrtlr'Tv
S' C d" - topj-: d ci on o
`Sf co.
<r
\ co
C o
ti 2 fc
c-~,
i3c r3*
JUI _o
0 3jc<3
k xP ^ o ic
<3->
o o ^O
cg3
|<ngC Is
12 iC <,
-uc
O
o ^.
V.
O
o
G Ao
b Si
E-
ii_(3
v! oJ
E 3 A *C. >-
l~ _g
*J5
_Hc
*_0-5_2.c S*.Sfc.
^ CT-g
'o"|E'^''5 S' ^
j _o
S 1 C E t I-tf
.5 3 O
l|s- 8 |.gJi|-gSJ
vP C
- Vj - 52 Cvi
- CM
Z V ^ o* O
ic- U_ ^jd- o
_c jr f 1- q
8 a CJ
(3^2 P>J
00
Or r^I
r4
O C-J CA Mm In *A <A co Cvl Cvl C4 C4
1A fA
s9 CA
CN CV|
CA Cg
c
*Pre cast cementA tN om inal thickness specified--actual thicknesses used in computations. jThe figures in this table may be used with sufficient accuracy for wood lath and plaster ceilings.
Chapter I--Calculating the Heat Losses from Buildings
Table 11-A. Coefficients of Transmission (V) of Various Types of Pitched Roofs
,y0/c__These coefficients are expressed in B.tu. per hour per square foot per 1 deg. fahr. difference in temperature between the air on the two sides and are based on an outside wind exposure of 15 miles per hour.
Ueated At TICS
The values_c/ U tn this TaWe are ba*sed on the' /oiiowinq Internal Conductivities (C) which are
expressed m &.La. per Ur. per Sq. ft. per ,1T ;
Asphalt or Composition Eoqfinq 6.50 peri"
A^beeto* Shmqles
6.00 -ptr 1*
State <3hinqles Wood (Veliow Pine or Pir> vAx)d Lath ( Plaster Plaster board .
.57 per.r 1.00 per -1* LOO as applied. 3.04 per 1*
Plaster (Gsp*u) , . fiber Insulation (board^rm)
Felt or Quilt Insulation (Soft)
pw-P 0*.33 per l*
0.27 per l'.
Cork-board Cellular Gypsum ()..
Powdered Gypsum (26*)
0.30 per F 0.5^ per l*
0.52 per l"
Typical Construction Q.oof Sheathing
Type of Ceilinq
L, 2E 3 2
>CoJ
Insulation' between Coot La/ters .
Ty pe of 2oo/inq 4'.iLoo/' Sheathmq '
Wood Shinqles on'Wood Strips*
Aspha.lt Giqid
Slate or?
Shmqlesor. Asbestos Tile and,
Composbon Shnqies . . ^oc/inq
ocfinq- on Wood .Filt.'onr
on Wood Sheathmq .Wood
Sheathmq
Sheathing
a :. b
C
d -
238 Uo Ceilinq 0^/ters eiposed) Hone
0.483 ' 0.518 0.515; 0.548,
233 Wood.-Loth t PlasUr(Vi)
240 Wood Lath 4 Piaster ('). 241 Wood Lath 4 Plaster Q/i)
242 Wood Lath 4 Ptdster (>/t) Z43' Wood Loth 4 Ptaoter(!tf) 244 Wood Lath 4- Pbottr (Itf)
Hone
felt or Quilt t insulation C^o/t)
I" felt or Quilt t insulation (5qft) '
fiber Insulation t (Board form)
1` fiber Insulation* (board form)
Cellular Gypsum fill ^
0.246 0.Z58 0.Z58 0.26Z'.
0.136 0.138 0.138 ' 0.14V
0.108
0.111
0.111 ' o.t a
0.141 0.116
0.144 . . 0.144 ' 0.146' 0.118 "0.1,18 ' 0.1.13
.0:108 0.116 0.116
alia
245 Wood Lath < Piaster ( 'A') fbwdered Gypsun fill * - 0.088 . 0.108 0.103
0.110
246 I'Plaotw board 4 Planter(W) VSone
0.256 ' 0.266 0.Z65 ' 0,274
247 l{4* Cork board 4 Plaster (Kl) Hone
0.114 0,115 : 0. H5
0,117
248 Z' Cort board 4 Plaster Qfi) Hone
fiber Insulation 248 (board form) 4 Plaster (14*)
250
Vi fiber Insulation
(board form) 4 Plaster (V2)
Vi'Fiber Insulation *' (Board form)
VI one
0.086 0.120 0.183
0.037 0.1ZZ 0:184
0.087 0.1ZZ0.133.
0.038 0.124 0.188
*Based on 1 in. by 4 in., sphced 2 in.
tCan also be applied to underside of roof rafters with furring strips between. ^Assumed 3% in. thick, based on 2 in. by 4 in. rafters.
41