Sealing external rainwater pipes

Do external rainwater pipe joints require sealing? And if so, why?

Asked by Simon on 9th Aug 2021
Expert Trade Answers
"they do not need sealing, the male end should fit into the female end sometimes a small screw is required just to help hold the pipework and fittings in place."
Answered on 13th Jan 2022 - Member since Mar 2021 - report
"All joints should be sealed really to prevent any leakages it takes no extra time to do this"
Answered on 11th Nov 2021 - Member since Mar 2019 - report
"Defective rainwater guttering and pipework can be the source of many sorts of damp problems in the structure of a building. The guttering and associated pipework are designed to carry rainwater away from a building, if they are not properly maintained, the water can run down the outside wall, eventually causing damage within the structure, ruining the decoration and/or causing mould growth. It is important to keep the guttering and pipework in good repair.

The best time to carry out work on the gutters is in the late autumn after all the leaves have fallen - so you can clean them out of the guttering before they cause over-winter problems. Often problems are only apparent while it is raining, so keep a lookout whenever it is raining for any rainwater leaking from the gutters or running where it should not. If you notice any major leaks at any time of the year, treat the repair as a priority.

Whenever working at heights, use a ladder correctly positioned. Take care when working at the top of a ladder, do not try to overreach yourself, and take care when handling lengths of guttering at heights - especially when you are handling metal or cement guttering which is fairly heavy and can affect your balance. For extensive repairs, you may consider hiring a scaffold tower system - it will make working at heights easier but unless your tower has wheels and can be moved around the building, considerable effort is required to dismantle and reposition the tower. If the guttering is at a height of over 6m (20 ft) or you are worried about working at height, maintaining/repairing guttering is a job you should avoid doing it yourself."
Answered on 9th Aug 2021 - Member since Mar 2021 - report
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