Page 549 - The City and Guilds Textbook: Plumbing Book 1 for the Level 3 Apprenticeship (9189), Level 2 Technical Certificate (8202) and Level 2 Diploma (6035)
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Chapter 8 Rainwater systems
For buildings without fascia boards
There are two methods of fixing to dwellings without fascia boards. These are as
follows.
1 The use of top-or side-fitted rafter brackets: these are galvanised steel
brackets that are screwed to the top or the side of the roof rafters. The
fascia brackets are then bolted to the rafter brackets. It is often necessary
to replace sections of rafters that have been exposed to the elements. The
rafters should be checked before installation.
2 The use of drive-in rise and fall brackets (also known as rise and fall
irons): these are flat pointed strips of galvanised steel that are built into the
brickwork joints. Threaded rod is then fitted with a gutter bracket attached,
which can be adjusted up or down to give a fall.
p Figure 8.15 Top-fitted rafter brackets p Figure 8.16 Side-fitted rafter brackets p Figure 8.17 Rise and fall brackets
Installation of the guttering
When installing gutter angle fittings, stop ends and gutter unions that are
unsupported, fascia brackets should be fitted no more than 150 mm away from
either side of the fitting or end of the gutter.
Once all the fascia brackets have been fixed, the gutter can be fitted. It is
advisable to work away from the outlet towards the high point – this will save
time on installation as fewer cuts will be needed.
150mm max 150mm max 150mm max
p Figure 8.19 Cast iron gutter p Figure 8.20 Rise
p Figure 8.18 Installing gutter angles fitted to rafter brackets and fall iron
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