Current through Register 2024 Notice Reg. No. 38, September 20, 2024
(a)
General Requirements.
(1) An installed anchor
shall not be used for any purpose other than attachment of window cleaner's
belt terminals. (Title 24, Part 2, Section 2-8503(a)1.)
(2) Anchors shall be installed on the inside
of a window which is to be washed from the inside but presents a hazard of
falling through to the outside, as defined in Section
3282(g)(2). (Title
24, Part 2, Section 2-8503(a)2.)
(3) A window to be cleaned from the sill
shall be suited structurally to the installation of anchors and, when opened,
shall not interfere with the attachment of window cleaner's belt terminals to
the anchors. (Title 24, Part 2, Section 2-8503(a)3.)
(4) Vertically pivoted or hinged windows to
be cleaned from the sill shall have an unobstructed passage to the exterior
sill that is at least 16 inches wide by 40 inches high. Double-hung,
single-hung or counterbalanced windows shall have a minimum passage 21 inches
wide and 30 inches high from the sill. (Title 24, Part 2, Section
2-8503(a)4.)
(5) The maximum width
of a double-hung or single-hung window to be washed while standing on sill or
ledge, supported by an anchor on either side of the window is 6 feet. (Title
24, Part 2, Section 2-8503(a)5.)
(6) The width of a stationary panel to be
washed from the inside from an adjacent open casement window shall not be more
than 2 1/2 feet.
NOTE: Assuming that the window cleaner could work from
the inside alternately from casement panels on each side of the stationary
panel, this would mean that a 5 foot width of stationary panel would be the
maximum width that could be handled in this manner without anchors. (Title 24,
Part 2, Section 2-8503(a)6.)
(7) Stationary panels up to 5 feet in width
may be cleaned by standing on a sill or ledge (See Figure 1 for width and slope
restrictions) while supported by anchors on each side of the panels if access
is provided via an openable panel adjacent to the stationary panel. For
stationary panels over 5 feet, but not exceeding 6 feet in width, the sill or
ledge must be at least 10 inches wide with a slope not exceeding 5 degrees.
(Title 24, Part 2, Section 2-8503(a)7.)
(8) A series of stationary panels without
openable panels between shall require traveling methods utilizing a method,
such as double-headed anchors, overhead trolley system, or other equivalent
means of providing a continuous means for window cleaners to tie off their
safety belts. (Title 24, Part 2, Section 2-8503(a)8.)
(9) Traveling on the outside of the building
shall not be permitted where the sill or ledge is less than 6 feet wide unless
it is possible to keep at least one window cleaner's belt terminal attached at
all times. The distance between anchors shall not exceed 4 feet horizontally
unless the sill or ledge is at least 12 inches wide and the slope is less than
5 degrees in which case the distance between anchors may be as much as 6 feet.
This method of traveling shall not be permitted, however, if the sill or ledge
is not continuous with at least 6 inches in front of the mullions or if each
window unit is not readily accessible.
(10) When the roof level or ledge is 8 feet
or more in width, as measured from the face of the building to the danger
point, no special protection, such as parapet, railing or window anchors, is
required.
When the distance is from 6 feet to 8 feet wide,
anchors are required unless there is a railing or parapet at least 2 feet
high.
When the distance is less than 6 feet, anchors or
equivalent protection as required by Section
3212 shall be required. (Title 24,
Part 2, Section 2-8503(a)9.)
(11) Traveling methods that comply with these
regulations shall not be permitted on ledges or sills less than 6 feet in width
unless double-headed anchors or 2 single-headed anchors with separate usable
heads are provided on each side of all windows in the series, along with at
least one openable panel to afford a safe, convenient means of access. (Title
24, Part 2, Section 2-8503(a)10.)
(12) Where double-headed anchors are
installed, they shall be placed so that there is enough free room for belts to
be attached to both terminals at one anchor location along with the capability
for either belt to be removed independently. (Title 24, Part 2, Section
2-8503(a)11.)
(b) Anchor
Design and Material Specifications.
(1) All
window anchors and fittings shall comply with the applicable portions of
Section 4.5 of ANSI/ASME A39.1-1991, Safety Requirements for Window Cleaning,
which is herein incorporated by reference. Manufacturers of window anchors and
fittings shall submit to the Division all pertinent test and other data called
for by this Order. Only those anchors and fittings granted approval by the
Division shall be used.
(2) The
manufacturer or authorized representative, of any window unit intended for
installation in new construction or remodeling shall submit evidence
satisfactory to the Division that the complete installation with approved
anchors has successfully withstood the drop test specified in paragraph
4.5.3(d)(2) of ANSI/ASME A39.1-1991, Safety Requirements for Window Cleaning,
which is herein incorporated by reference, without failure of the frame at the
point of attachment of the anchors and without detachment of the window unit
from its attachments to the wall section. (Title 24, Part 2, Section
2-8503(b).)
(c) Anchor
Location.
(1) Anchor Side Clearance. The
center line of the anchor head shall be at least one inch away from
obstructions at either side that would interfere with engagement of belt
terminals.
(2) Clearance Above and
Below Anchors. Because many belt terminals slide onto the anchor from above and
extend 4 or 5 inches below the anchor when attached, obstructions shall not be
allowed within this distance above or below the anchor head.
(3) Minimum Bolt Edge Distance. The minimum
distance from the face of the building for bolt installations when the bolt is
placed in a reveal shall be as follows:
In Reinforced Concrete--2 1/2 inches if secured to
reinforcing steel.
In Brick--At brick joint, not less than 8 inches from
building face. (Title 24, Part 2, Section
2-8503(c).)
(d)
Anchor Installations.
(1) Locations. Anchors
shall be attached to the side frames of the window or to the building at a
point no less than 42 inches nor more than 51 inches above the window sill.
EXCEPTION: Where the windows are less than 48 inches in
height and of such design that the window cleaner would normally work from the
outside, anchors shall be located at a height above the sill that is
approximately two-thirds the total height of the window.
(2) Wood. When the anchor and bolt are forged
as one piece, such anchors may be used in single or double configurations when
provided with a front collar to prohibit anchor rotation and a rear flat washer
of at least twice the diameter of the bolt with a lock washer and nut. The
bolts shall be a minimum of 3/8 -inch in diameter and shall pass through a
solid section of the window construction. The drilled hole shall be no more
than
1/16 -inch
larger than the bolt, and any excess bolt thread shall be cut off and the
thread peened over or upset to prohibit the nut from loosening or being
removed.
When anchors are employed with separate bolt(s), the
preceding conditions will apply, provided that either two machine or carriage
bolts are employed, or certain special anchor types have one bolt with screws
to prohibit anchor movement. All anchors and hardware shall be of Type 303,
304, or 316 stainless and shall meet or exceed the material requirements of
these orders. Anchor nuts shall be tamper proof.
(3) Concrete. Anchors attached to concrete
poured-in-place in buildings erected after October 3, 1955 shall be installed
while the concrete is being placed. Such anchors shall extend not less than 5
inches into the concrete and shall have a cross-sectional area of not less than
one-fourth of a square inch and shall be provided with a fluke at the end of
the anchor not less than 1 inch in length.
(4) Masonry. Anchors attached to masonry,
other than concrete poured-in-place, in buildings erected after October 3,
1955, shall be installed while the wall is under construction and shall be
shaped to build into the joints between masonry units. Such anchors shall be
not less than 8 1/2 inches long and shall have a cross-sectional area of
not less than one-fourth of a square inch at all unexposed points and shall
have a fluke or flukes having holding surface of not less than 1 inch in length
that shall be firmly imbedded in the masonry.
(5) Masonry and Concrete. Anchors installed
on buildings of masonry and concrete construction erected before October 3,
1955 shall be attached to the window frame as required in these orders, or by
other methods acceptable to the Division.
(6) Hollow Metal. Anchors attached to hollow
metal construction shall be installed by one of the following methods:
(A) At least two machine screws or bolts of
3/8 -inch diameter stainless steel or equivalent passing through the frame and
a steel reinforcing plate 3/8 -inch thick that extends not less than 5 inches
above the top bolt hole, placed on the inside of the frame and secured by means
of nuts and lock washers. In cases where it is impracticable to provide nuts
and lock washers, the reinforcing plate may be tapped to receive 3/8 -inch
diameter bolts, and the bolts shall extend through the plate.
(B) Where the threaded bolt is an integral
part of the anchor, it shall be at least 1/2 -inch in diameter and shall
be secured by means of a nut and lock washer, or any other method acceptable to
the Division.
(C) Bolts used to
attach anchor fastenings shall be secured by means of nuts tightened to the
torque specified by the bolt manufacturer or other equivalent
means.
(7) Solid Metal.
Anchors attached to solid metal construction shall be installed by one of the
following methods:
(A) At least two machine
screws or bolts of 3/8 -inch diameter stainless steel or equivalent passing
through the frame and secured by means of nuts and lock washers. In cases where
it is impracticable to provide nuts and lock washers, the metal frame shall be
reinforced with a 3/8 -inch thick plate, 6 inches long, tapped to receive both
attaching bolts which shall extend through the reinforcing plate.
(B) Where the threaded bolt is an integral
part of the anchor, it shall be at least 1/2 -inch in diameter and shall
be secured by means of a nut and lock washer, or any other method acceptable to
the Division.
(C) Bolts used to
attach anchor fastenings shall be secured by means of nuts tightened to the
torque specified by the bolt manufacturer or other equivalent
means.
(8) Aluminum.
(A) When anchors are attached to hollow or
solid aluminum frames, the reinforcing plate shall be coated or protected so as
to minimize electrolytic action between unlike metals.
(B) All anchors and anchor fastenings shall
be provided with means to prevent them from turning, backing off or becoming
loose.
(C) Bolts used to attach
anchor fastenings shall be secured by means of nuts tightened to the torque
specified by the bolt manufacturer or other equivalent
means.
(9) The use of
expansion shield anchors is prohibited. (Title 24, Part 2, Section
2-8503(d).)
(e)
Inspection of Anchors and Fittings. Inspection of window cleaning anchors and
fittings on buildings shall be conducted at least every 12 months.
(f) Anchor Replacement. Anchors and fittings
subject to impact loading or other possible structural damage shall be
replaced. Replacement shall be as specified by the anchor manufacturer or other
method acceptable to the Division.
1.
Amendment filed 7-16-76; effective thirtieth day thereafter (Register 76, No.
29).
2. Editorial correction filed 10-7-83; effective thirtieth day
thereafter (Register 83, No. 41).
3. Amendment of subsections
(a)(8), (b)(1) and (2), (d)(2) and (5) filed 9-12-85; effective thirtieth day
thereafter (Register 85, No. 37).
4. Amendment filed 3-9-93;
operative 4-8-93 (Register 93, No. 11).
Note: Authority cited: Section
142.3, Labor
Code. Reference: Section
142.3, Labor
Code; and Section
18943(c),
Health and Safety Code.
