7
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 5
EXTERIOR HORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS
V
V
V
V
V
F
C
Fixed
Closed
Window
Operable
Window
B
B
A
B
H
M
I
= Vent Terminal
= Area where Terminal is not Permitted
= Air Supply Inlet
X
V
D
V
3 ft.
3 ft.
A
A
A
= 9” in U.S.
= 12” in Canada
V
L
B
J
X
E
V
A
G
Inside
Corner Detail
*18”
Ventilated Soffit
Horizontal
Termination
Detail D
Exterior Wall
Center Line
of Termination
18”
Inside Corner
B
C
C
C
*
See Item D in the Text Below.
.
e
d
o
C
n
o
i
t
a
l
l
a
t
s
n
I
e
n
a
p
o
r
P
d B149.2
n
A
s
a
G
l
a
n
o
i
t
a
N
1
.
9
4
1
B
-
A
S
C
t
n
e
r
r
u
c
e
h
t
h
t
i
w
e
c
n
a
d
r
o
c
c
a
n
I
*
.
s
e
d
o
C
s
a
G
l
e
u
F
l
a
n
o
i
t
a
N
4
5
A
P
F
N
/
1
.
3
2
2
Z
S
I
S
N
A
t
n
e
r
u
c
e
h
t
h
t
i
w
e
c
n
a
d
r
o
c
c
a
n
I
*
*
s
e
v
r
e
s
d
n
a
s
g
n
i
l
l
e
w
d
y
l
i
m
a
f
e
l
g
n
i
s
o
w
t
n
e
e
w
t
e
b
d
e
t
a
c
o
l
s
i
h
c
i
h
w
y
a
w
e
v
i
r
d
d
e
v
a
p
r
o
k
l
a
w
e
d
i
s
a
e
v
o
b
a
y
l
t
c
e
r
i
d
e
t
a
n
i
m
r
e
t
t
o
n
l
l
a
h
s
t
n
e
v
A
‡
.
s
g
n
i
l
l
e
w
d
h
t
o
b
:
r
o
o
l
f
e
h
t
h
t
a
e
n
e
b
s
e
d
i
s
2
m
u
m
i
n
i
m
a
n
o
n
e
p
o
y
l
l
u
f
s
i
y
n
o
c
l
a
b
r
o
k
c
e
d
,
h
c
r
o
p
,
a
d
n
a
r
e
v
f
i
d
e
t
t
i
m
r
e
p
y
l
n
O
‡
*
*
n
o
i
t
a
l
l
a
t
s
n
I
n
a
i
d
a
n
a
C
*
*
n
o
i
t
a
l
l
a
t
s
n
I
S
U
,
h
c
r
o
p
,
a
d
n
a
r
e
v
,
e
d
a
r
g
e
v
o
b
a
e
c
n
a
r
a
e
l
C
=
A
.
y
n
o
c
l
a
b
r
o
,
k
c
e
d
*
)
m
c
0
3
(
s
e
h
c
n
i
2
1
*
*
)
m
c
0
3
(
s
e
h
c
n
i
2
1
e
b
y
a
m
t
a
h
t
r
o
o
d
r
o
w
o
d
n
i
w
o
t
e
c
n
a
r
a
e
l
C
=
B
.
d
e
n
e
p
o
s
e
c
n
a
i
l
p
p
a
r
o
f
)
m
c
5
1
(
n
i
6
)
m
c
0
3
(
n
i
2
1
,
)
W
k
3
(
h
u
t
B
0
0
0
,
0
1
<
d
n
a
)
W
k
3
(
h
u
t
B
0
0
0
,
0
1
>
s
e
c
n
a
i
l
p
p
a
r
o
f
)
m
c
1
9
(
s
e
h
c
n
i
6
3
,
)
W
k
0
3
(
h
u
t
B
0
0
0
,
0
0
1
<
*
)
W
k
0
3
(
h
u
t
B
0
0
0
,
0
0
1
>
s
e
c
n
a
i
l
p
p
a
r
o
f
s
e
c
n
a
i
l
p
p
a
r
o
f
)
m
c
5
1
(
n
i
6
)
m
c
3
2
(
n
i
9
,
)
W
k
3
(
h
u
t
B
0
0
0
,
0
1
<
d
n
a
)
W
k
3
(
h
u
t
B
0
0
0
,
0
1
>
s
e
c
n
a
i
l
p
p
a
r
o
f
)
m
c
0
3
(
s
e
h
c
n
i
2
1
,
)
W
k
5
1
(
h
u
t
B
0
0
0
,
0
5
<
*
*
)
W
k
5
1
(
h
u
t
B
0
0
0
,
0
5
>
s
e
c
n
a
i
l
p
p
a
r
o
f
w
o
d
n
i
w
d
e
s
o
l
c
y
l
t
n
e
n
a
m
r
e
p
o
t
e
c
n
a
r
a
e
l
C
=
C
t
n
e
v
e
r
p
o
t
d
e
d
n
e
m
m
o
c
e
r
)
m
m
5
0
3
(
"
2
1
n
o
i
t
a
s
n
e
d
n
o
c
w
o
d
n
i
w
t
n
e
v
e
r
p
o
t
d
e
d
n
e
m
m
o
c
e
r
)
m
m
9
2
2
(
"
9
n
o
i
t
a
s
n
e
d
n
o
c
w
o
d
n
i
w
t
i
f
f
o
s
d
e
t
a
l
i
t
n
e
v
o
t
e
c
n
a
r
a
e
l
c
l
a
c
i
t
r
e
V
=
D
l
a
t
n
o
z
i
r
o
h
a
n
i
h
t
i
w
l
a
n
i
m
r
e
t
e
h
t
e
v
o
b
a
d
e
t
a
c
o
l
r
e
t
n
e
c
e
h
t
m
o
r
f
)
m
m
8
5
4
(
s
e
h
c
n
i
8
1
f
o
e
c
n
a
t
s
i
d
l
a
n
i
m
r
e
t
e
h
t
f
o
e
n
i
l
)
m
m
8
5
4
(
"
8
1
)
m
m
8
5
4
(
"
8
1
t
i
f
f
o
s
d
e
t
a
l
i
t
n
e
v
n
u
o
t
e
c
n
a
r
a
e
l
C
=
E
)
m
m
5
0
3
(
"
2
1
)
m
m
5
0
3
(
"
2
1
r
e
n
r
o
c
e
d
i
s
t
u
o
o
t
e
c
n
a
r
a
e
l
C
=
F
m
u
m
i
n
i
m
)
m
c
7
.
2
1
(
"
5
m
u
m
i
n
i
m
)
m
c
7
.
2
1
(
"
5
r
e
n
r
o
c
e
d
i
s
n
i
o
t
e
c
n
a
r
a
e
l
C
=
G
m
u
m
i
n
i
m
)
m
c
2
.
5
1
(
"
6
m
u
m
i
n
i
m
)
m
c
2
.
5
1
(
"
6
e
n
i
l
r
e
t
n
e
c
f
o
e
d
i
s
n
i
h
c
a
e
o
t
e
c
n
a
r
a
e
l
C
=
H
y
l
b
m
e
s
s
a
r
o
t
a
l
u
g
e
r
/
r
e
t
e
m
e
v
o
b
a
d
e
d
n
e
t
x
e
t
e
e
f
5
1
f
o
t
h
g
i
e
h
a
n
i
h
t
i
w
)
m
c
1
9
(
t
e
e
f
3
*
y
l
b
m
e
s
s
a
r
o
t
a
l
u
g
e
r
/
r
e
t
e
m
e
h
t
e
v
o
b
a
t
e
e
f
5
1
f
o
t
h
g
i
e
h
a
n
i
h
t
i
w
)
m
c
1
9
(
t
e
e
f
3
*
*
y
l
b
m
e
s
s
a
r
o
t
a
l
u
g
e
r
/
r
e
t
e
m
e
h
t
e
v
o
b
a
t
e
l
t
u
o
t
n
e
v
r
o
t
a
l
u
g
e
r
e
c
i
v
r
e
s
o
t
e
c
n
a
r
a
e
l
C
=
I
*
)
m
c
1
9
(
t
e
e
f
3
*
*
)
m
c
1
9
(
t
e
e
f
3
t
e
l
n
i
y
l
p
p
u
s
r
i
a
l
a
c
i
n
a
h
c
e
m
n
o
n
o
t
e
c
n
a
r
a
e
l
C
=
J
y
n
a
o
t
t
e
l
n
i
r
i
a
n
o
i
t
s
u
b
m
o
c
e
h
t
r
o
g
n
i
d
l
i
u
b
o
t
e
c
n
a
i
l
p
p
a
r
e
h
t
o
s
e
c
n
a
i
l
p
p
a
r
o
f
)
m
c
5
1
(
n
i
6
)
m
c
0
3
(
n
i
2
1
,
)
W
k
3
(
h
u
t
B
0
0
0
,
0
1
<
d
n
a
)
W
k
3
(
h
u
t
B
0
0
0
,
0
1
>
s
e
c
n
a
i
l
p
p
a
r
o
f
)
m
c
1
9
(
s
e
h
c
n
i
6
3
,
)
W
k
0
3
(
h
u
t
B
0
0
0
,
0
0
1
<
*
)
W
k
0
3
(
h
u
t
B
0
0
0
,
0
0
1
>
s
e
c
n
a
i
l
p
p
a
r
o
f
s
e
c
n
a
i
l
p
p
a
r
o
f
)
m
c
5
1
(
n
i
6
)
m
c
3
2
(
n
i
9
,
)
W
k
3
(
h
u
t
B
0
0
0
,
0
1
<
d
n
a
)
W
k
3
(
h
u
t
B
0
0
0
,
0
1
>
s
e
c
n
a
i
l
p
p
a
r
o
f
)
m
c
0
3
(
s
e
h
c
n
i
2
1
,
)
W
k
5
1
(
h
u
t
B
0
0
0
,
0
5
<
*
*
)
W
k
5
1
(
h
u
t
B
0
0
0
,
0
5
>
s
e
c
n
a
i
l
p
p
a
r
o
f
t
e
l
n
i
y
l
p
p
u
s
r
i
a
l
a
c
i
n
a
h
c
e
m
a
o
t
e
c
n
a
r
a
e
l
C
=
K
6 feet (1.8m)*
)
m
3
(
t
e
e
f
0
1
n
i
h
t
i
w
f
i
e
v
o
b
a
)
m
c
1
9
(
t
e
e
f
3
*
*
y
l
l
a
t
n
o
z
i
r
o
h
d
e
v
a
p
r
o
k
l
a
w
e
d
i
s
d
e
v
a
p
e
v
o
b
a
e
c
n
a
r
a
e
l
C
=
L
y
t
r
e
p
o
r
p
c
i
l
b
u
p
n
o
d
e
t
a
c
o
l
y
a
w
e
v
i
d
‡
)
m
3
1
.
2
(
t
e
e
f
7
‡
)
m
3
1
.
2
(
t
e
e
f
7
r
o
k
c
e
d
,
h
c
r
o
p
,
a
d
n
a
r
e
v
r
e
d
n
u
e
c
n
a
r
a
e
l
C
=
M
y
n
o
c
l
a
b
‡
*
)
m
c
0
3
(
s
e
h
c
n
i
2
1
‡
)
m
c
0
3
(
s
e
h
c
n
i
2
1