Page 82 - The City and Guilds Textbook: Plumbing Book 1 for the Level 3 Apprenticeship (9189), Level 2 Technical Certificate (8202) and Level 2 Diploma (6035)

The City & Guilds Textbook: Plumbing Book 1

The remaining scaffold functions in the same way as the independent scaffold.

The scaffold can be erected to existing brickwork, but is usually erected along
with new building work. The working platform is supported by putlogs and not
transoms. The putlog, in turn, is supported by the new brickwork by allowing
the spade (flat) end of the putlog to rest flat on the brickwork. Putlogs should
never be removed or the scaffold will be in danger of collapse. Putlog scaffolds
should be tied to the building at least every 4 m vertically and 6 m horizontally.

Access to tubular scaffolds
It is usual to access a scaffold from a ladder, and provision must be made so that
this can be done easily and safely. A suitable gap should be left in the handrail
and toe board to allow operatives to access the scaffold. The ladder should be
secured both at the top and bottom, and extend at least 1 m (approx. five rungs)
above the platform.
The final rung of the ladder from which the operative steps onto the platform
should ideally be just above the surface of the platform. The gap left between
the ladder and the guardrail should not be more than 500 mm.

Guardrails and toe boards
The risk of falling materials causing injury should be minimised by keeping
platforms clear of loose materials. Access platforms more than 2 m high must,
therefore, have guardrails, brick guards and toe boards. They provide a method of
preventing materials or other objects from rolling or being kicked off the edges
of working platforms, so must be fixed at all open edges of the working platform.
Brick guard Guardrails Toe board Working platform

760 mm

150 mm

p Figure 1.49 Guardrails and toe boards

Working platforms
This is the level at which the work will be carried out. The following points
should be noted.
● The loading of materials must be spread as evenly as possible.
● Working platforms must be kept free from ice, snow, grease and other hazards.
● Gaps between boards should be kept as small as possible.
● Boards must be at least:
● 150 mm wide if they are 50 mm thick
● 200 mm wide if they are between 32 mm and 38 mm thick.

70

9781510416482.indb 70 29/03/19 8:50 PM