Correct Anchorage Positioning:
This chart details allowable working zones required
to reduce risk of swing falls and improper side loading.
ALWAYS adhere to information specified by chart.
Anchor Distance
From
Leading Edge (Y)
Working Distance
Along Roof Edge
(Either Direction) (X)
Working Angle
From
Perpendicular (Ø)
6’
10’
15’
20’
25’
30’
35’
40’
45’
50’
55’
60’
8’
9’ - 9”
11’ - 7”
13’ - 3”
14’ - 6”
16’
17’ - 2”
18’ - 3”
19’ - 4”
19’ - 10”
21’ - 4”
22’ - 3”
53°
45°
38°
33°
30°
28°
26°
24°
23°
21°
21°
21°
For example, if the anchorage connector is 6’ from the leading
edge (Y), the working distance (X) is 8’ in each direction from
the perpendicular, which translates to a 53° working angle.
Ø
: Total Working Angle
X
: Working Distance
Along Leading Edge
Y
: Distance From
Leading Edge
X
Y
ø
X
Leading Edge
G
ua
rd
ia
n
Fa
ll
Pr
ot
ec
tio
n
6
30
5
S.
2
31
st
S
t.
, K
en
t,
W
A
9
80
32
p
ho
ne
: (
80
0)
4
66
-6
38
5
f
ax
: (
80
0)
6
70
-7
89
2
w
w
w
.g
ua
rd
ia
nf
al
l.c
om
3
Compatibility:
When making connections with Window Gap Anchor, eliminate all possibility of roll-out.
Roll-out occurs when interference between a hook and the attachment point causes the hook gate to
unintentionally open and release. All connections must be selected and deemed compatible with Window Gap
Anchor by a Competent Person. All connector gates must be self-closing and self-locking, and withstand
minimum loads of 3,600 lbs. See the following for examples of compatible/incompatible connections:
Connector
closed and
locked to
D-ring.
OK.
Connector
to integral
lanyard.
NO.
Two or more
snap hooks or
carabiners
connected to
each other.
NO.
Two connectors
to same
D-ring.
NO.
Connector
directly to
horizontal
lifeline.
NO.
Connector
directly to
webbing.
NO.
Incompatible
or irregular
application,
which may
increase risk
of roll-out.
NO.
