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BS 8634:2017

BS 8634:2017

$142.49

Portable roof ladders. Specification

Published By Publication Date Number of Pages
BSI 2017 32
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This British Standard specifies requirements for portable roof ladders specifically designed solely to provide temporary access to pitched roofs with angles between 25° and 65° for tasks that are of short duration and low risk.

In particular, it specifies:

  1. general design features, requirements and test methods;

  2. the supporting elements, the bearers and ridge hook, and their connections to the ladders, including how a ladder is supported and located by the ridge of a pitched roof;

  3. the pitch, dimensions and form of a roof ladder’s climbing surfaces, according to the intended angles of use;

  4. the wheels used to manoeuvre a roof ladder into position on a pitched roof; and

  5. markings and user instructions.

Roof ladders conforming to this standard are only intended for use on pitched roofs with angles between 25° and 65° and for no other purpose. They are not intended for use as leaning or standing ladders.

This British Standard covers single section roof ladders, extending roof ladders, roof ladders with hinge (articulated) joints, roof ladders with telescopic joints and multi-part (sectional) roof ladders.

It is not applicable to:

  1. aftermarket accessories which are intended to convert leaning ladders into roof ladders;

  2. roof ladders for use on mono-pitch roofs, e.g. a pent roof;

  3. roof ladders used with personal protection equipment intended as a means of fall arrest unless the roof ladder is part of a proprietary system designed for that purpose; or

    NOTE See Annex A for further information.

  4. crawling boards for use on roof angles less than 25°.

PDF Catalog

PDF Pages PDF Title
4 Foreword
5 Introduction
1 Scope
6 2 Normative references
3 Terms and definitions
7 4 Design
8 Table 1 — Dimensions for rungs and steps
9 Figure 1 — Dimensions for rungs or steps and the pitch of bearers
10 Figure 2 — Width of ridge hook and bearers
11 5 Materials
6 Safety markings
12 Figure 3 — Safety symbols
15 7 User instructions
18 Annex A (informative)  Information regarding systems intended to provide a means of fall prevention by the connection of personal fall protection equipment
19 Annex B (normative)  Sequence of testing
Table B.1 — Sequence of testing
Annex C (normative)  Cyclic test of locking devices and hinged joints
Annex D (normative)  Test for strength of the ridge hook, its connections to the roof ladder and any locking device(s)
21 Figure D.1 — Test for strength of the ridge hook and its connections to the roof ladder and any locking devices
22 Annex E (normative)  Test for strength of the roof ladder and its bearers
23 Figure E.1 — Test for strength of the roof ladder and its bearers
24 Annex F (normative)  Test for strength of the bearers and their connections to the ladder
25 Figure F.1 — Test for strength of the bearers and their connections to the ladder
Annex G (normative)  Test for longitudinal strength of the bearers
26 Figure G.1 — Test for longitudinal strength of the bearers
27 Annex H (normative)  Tests for strength of rungs and steps, and dimension g2
28 Figure H.1 — Test for strength of rungs and steps and dimension g2
29 Annex I (normative)  Torsion test for rungs or steps
30 Figure I.1 — Torsion test for rungs or steps
31 Bibliography

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BS 8634:2017
$142.49