Page 554 - 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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The City & Guilds Textbook: Plumbing Book 1

                                            however, as movement of the gutter can break further joints down the gutter
                                            run. Again, silicone sealant is not a satisfactory jointing medium in this situation
                                            and the joint must be dry before jointing is attempted.

                                            Replacement of defective gutters and

                                            fittings
                                            Perhaps the most obvious of all gutter defects are cracked and broken gutters
                                            and rainwater pipes.

                                            PVCu gutters and rainwater pipes are at constant risk from ultraviolet (UV)
                                            rays from sunlight. This can often lead to gutters becoming brittle, causing
                                            them to shatter or crack. Placing ladders directly against PVCu gutters, when
                                            undertaking maintenance and cleaning, can also damage them further.
                                            Look back at Chapter 2, Common processes and techniques, for more
                                            information on the effects of UV light on plastics.
                                            The main problem here, especially where replacement is necessary, is
                                            compatibility. Most manufacturers now use generic gutter and rainwater pipe
                                            sizes, but older guttering systems are often smaller in size with no adapters
                                            available. In this case, replacement of the entire system is the only option.
                                            Where the gutter is compatible with other systems, the replacement of gutter is
                                            a fairly simple process, as described below.
                                            1  Visually inspect the job and assess the risks. A risk assessment should be
                                               carried out. Guttering is a two-man job if working from a ladder.
                                            2  The correct PPE should be worn when attempting this task. Eye protection is
                                               essential.
                                            3  If it is possible to remove the cracked section between two fittings, this will
                                               be the simpler option. It is advisable to replace the fittings either side as well
                                               as the length of gutter as the rubber seals may not create a seal when the
                                               new gutter is installed.
                                            4  Unclip the gutter from the fittings and begin to remove the gutter from the
                                               fascia brackets by pulling the gutter and bracket towards you and down.
                                               Unclip the gutter by lifting the front edge of the fascia bracket and clicking it
                                               over the gutter. Be careful here. The brackets may be as brittle as the gutter
                                               itself.
                                            5  Once all the brackets and fittings have been unclipped, carefully lift out
                                               the gutter by twisting the front face of the gutter upwards and out of the
                                               brackets.
                                            6  Replace the fittings (gutter unions, angles, etc.) as necessary, taking care not
                                               to alter the fall of the gutter.
                 HEALTH AND SAFETY          7  Measure the distance between the expansion marks of the fittings, and cut

                 Take care when working        and de-burr the new length of gutter.
                 in the same space as       8  Install the new gutter by inserting the back edge first, and twisting down and
                 cast iron gutters as,         away from you.
                 occasionally, the gutter
                 may fall without warning.  9  Carefully re-clip the gutter into the first fitting and, working towards the
                                               second fitting, re-clip the gutter into the fascia brackets.


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        9781510416482.indb   542                                                                                    29/03/19   9:04 PM
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