How is the roof rainwater system installed?

Satunnainen

Installing a rainwater system protects the house’s foundations and structures from excess water. Below is how a roof rainwater system is usually installed, from preparation to the finishing touches.

Necessary tools and materials

Before you start, make sure you have all the necessary tools and materials:

  • Rain gutters
  • Downpipes
  • Gutter fasteners
  • Pipe fasteners
  • Connecting parts
  • Saw and drill
  • Measuring tape
  • Water level (spirit level)
  • Sealing agent

1. Preparatory work

Measure the roof and calculate how many gutters and pipes you need, and plan where the downpipes will go so that water is directed away from the house’s foundations. Make sure the roof surface is clean and flat, and remove any old parts of the rainwater system. Measure and cut the new parts to the right size.

2. Installing the gutters

Attach the gutter brackets to the edge of the roof, roughly every 50 cm. The gutters must be installed at a slight, even angle so that water flows towards the downpipes, and all parts must be tightly fixed together so nothing bends or leaks.

3. Installing the downpipes

Attach the downpipes to the gutters using fittings, and fix them firmly to the wall with pipe brackets. The downpipes must be long enough to lead rainwater well away from the building’s foundations. If necessary, fit them with strainers or filters that keep debris out of the pipeline.

4. Sealing and finishing work

Use a sealing agent on the joints to prevent leaks. Once everything is installed, do any finishing work, such as painting, so the system looks neat and lasts a long time.

5. Final check

Use a spirit level to check that the gutters and pipes run at the correct angle. Test the whole system by pouring water into the gutters and confirming that it flows smoothly into the downpipes and away from the house.

Tips and considerations

  • Choose durable materials that can withstand Finland’s changing weather conditions.
  • Maintain the rainwater system regularly by removing debris and leaves from the gutters.
  • Make sure the downpipes direct water far enough away from the foundations of the house.

Sources: Rakentaja.fi

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