Installing a roof drain

The problem with flat roofs is that if they do not have a proper drainage system, they will collect much water and can cause it to flood. So to prevent this kind of problems, you will need to install a roof drain. As long as yo have the right tools and materials, this shouldn’t be a hard job.

If your roof already has pools, then maybe you should use a pipe to siphon the water away.

Materials and tools that you will need:

  • Roof drain
  • Roof drain cover
  • Drain pipe
  • Drain
  • Flat Roof

Roof drain

First of all you will need to remove all the water from your roof, by siphoning it. Fill the hosepipe with water before submerging it in the standing water. This will cause the water to flow down off the roof.

You will need to think where to install the roof drain. The best place is on the lower point of the roof, on the outside edges of the roof. Think of how good it will work.


For the water to run correctly, you will need to remove some bricks from where the drain will sit. But be careful because the area needs to be small to not damage the integrity of the building, but at the same time to allow the water to escape easily.


Do not let the water run down the side of your house. This will allow it to come in contact with the surface of the walls. Many problems can occur and the moisture can even infiltrate in your home. This is why you should install downspouts and gutters to redirect the water away from the building.


The gutters will need to be positioned into the drains, or soak-aways, so the water can be absorbed without damaging the foundations or your property.

Testing the drains

Drench the area of your roof to make sure that the water is draining away correctly, and it’s not pooling.

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