Roofanka
Slope Mounted Fall Arrest Roof Anchor. 'Roofanka' is a comprehensive
range of fall arrest anchor devices for use on most types and sizes
of roof support for the ultimate in roof safety.
Fall Arrest Anchors
A combination fall arrest anchor, ladder hook and crawling board
clamp (Roofanka Type RA104) for the attachment of industrial
safety belts and harnesses and to secure roof ladders, crawling
boards, work platforms etc.
Designed and Tested to EN795:1996, EN517:1996, BS7883:2005
and ISO 14567
Direction of loading:
Due to the potential weaknesses in timber roof structures,
the basic models (product codes RANKAUK and RANKAEX) should
only be used where the direction of loading would always be
in the plane (ie. down the slope) of the roof. Where it is
possible that the arrest of a fall may result in forces applied
across the roof structure (eg. by a fall over a gable end)
special versions of ROOFANKA should be employed. The addition
of a lateral brace shares the bending moment with the adjacent
rafter to resist potentially high torsional bending of the
roof timbers. (See product codes RANKAUK-GE and RANKAEX-GE.)
Specification: EN795 Class A2 and EN517 Type A One
user only, with a maximum loading of 10kN. |
 |
Product Code |
Drawing Number |
Min. Roof Member (mm) |
Max. Roof Member (mm) |
Transverse Forces OK? |
RANKAUK |
RA104/1/1 |
72 x 35 |
152 x 65 |
NO |
RANKAUK-GE |
RA104/11/1 |
72 x 35 |
152 x 65 |
YES |
RANKAEX |
RA104/1/2 |
135 x 65 |
220 x 120 |
NO |
RANKAEX-GE |
RA104/11/2 |
135 x 65 |
220 x 120 |
YES |
 
Structural Anchors used with horizontal flexible safety lines
to EN795 Class C. (Roofanka Type RA105)
Both intermediate and extremity anchors are available but it is
important that intermediate anchors should only be used where the
direction of loading is down the slope of the roof. For extremity
anchors the direction of loading can be in the plane of the roof,
at right angles to the axis of the truss/joint, or at any intermediate
angle. In all cases the horizontal line should be no more than 300mm
above the surface of the roof.
Samples of ROOFANKA Types RA104, RA105 and RA109 have been tested
and found to comply in all respects
to the requirements of EN517, EN795 Class C, BS7883 and the PPE
Directive.
A close up view of an anchor pedestal and the bracketry
for attachment to a roof truss.
A set of combination fall arrest anchor, ladder hook
and crawler board clamps in use and a series of anchor pedestals
supporting a horizontal lifeline.
Product Code |
Drawing Number |
Min. Roof Member (mm) |
Max. Roof Member (mm) |
Max Users |
Max Loading |
Transverse Forces OK? |
RANKAUK-IA |
RA105/1/1 |
72 x 35 |
152 x 65 |
No Limit |
10kN |
NO |
RANKAUK-EA |
RA105/11/1 |
72 x 35 |
152 x 65 |
One |
10kN |
YES |
RANKAEX-IA |
RA105/1/2 |
135 x 65 |
220 x 120 |
No Limit |
10kN |
NO |
RANKAEX-EA |
RA105/11/2 |
135 x 65 |
220 x 120 |
One |
10kN |
YES |
RANKA-EA30 |
RA109/1 |
135 x 65 |
220 x 120 |
No Limit |
30kN |
YES |
Notes:
- a. Where the product code suffix is IA the product must only
be used as intermediate anchors, no transverse forces are allowed.
- b. Only RANKA-EA30 may be used as an extremity anchor on multi-user
systems.
- c. For RANKAUK-EA where the roof member is timber, the minimum
depth should be increased to 97mm (by nailing and gluing) for
at least 500mm each side of the ROOFANKA.
Selecting the Position for Installation
Each ROOFANKA must be installed in a position such that the user
is afforded maximum security at all times. The choice of position
must take regard of the following:
FREE MOVEMENT OVER THE ROOF.
It is recommended that an anchor line, in conjunction with a manually
adjusted rope grab should be used by anyone working on the roof.
The safety line should be attached to a ROOFANKA as near as possible
to the apex of the roof, and the rope grab attached to a connector
which in turn should be fastened to the user’s safety harness
at the Dorsal attachment point. The length of the safety line and
the position of a ROOFANKA should be such that, while attached to
the first ROOFANKA the user may move to a second ROOFANKA, near
to the apex of the roof, to which he can attach the loose end of
his safety line. At this time he should reverse the rope grab, return
to the first ROOFANKA and detach the safety line in order to continue
working. Note that it is advisable for total security for the user
to have a spare short adjuster attached to his harness so that this
may be attached to a ROOFANKA eye while the rope grab is being reversed.
The drawings show typical ROOFANKA applications covering crawler
boards, edge protection and work platforms.
MEANS OF ACCESS TO THE ROOF.
ROOFANKA should be positioned such that the user may attach his
safety line before he climbs on to the roof, usually at the point
where he would transfer from ladder to roof. Any ladders used for
access to the roof can be safely lashed with our LADDERLASH lashing
straps. It is suggested that our LADDERANKA ladder ties should be
installed at the access position, including a ladder tie at the
top of the ladder.
SECURING CRAWLING BOARDS, EDGE PROTECTION OR WORKING PLATFORMS
The ROOFANKA Crawler Board Clamp is designed for use with 2"(50mm)
thick scaffold planks but may also be used with 11/4"(32mm)
and 11/2"(38mm) thick planks.
Clause 13 of the Construction (Working Places) Regulations
1966 - S.I.1966 No.94 gives advice on the distance between
supports for scaffold planks which should be followed when installing
ROOFANKA to secure crawling boards, edge protection or working platforms
etc.
Where a ROOFANKA installation is intended to have a dual role,
(ie. single point anchorage and support for crawler boards etc.)
all the recommendations given should be complied with.
The drawings show typical ROOFANKA applications covering crawler
boards, edge protection and work platforms.
(This document is also available as an Adobe .PDF
file. Click here
to download).
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