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EPDM bottom spout: Integration into your EPDM roof

When installing EPDM roofing, it is important to take the drainage of rainwater into account. In this article we explain how you can integrate an EPDM underspout into your EPDM roof.

Ensure efficient rainwater drainage

It is essential to ensure that rainwater drains properly from your flat roof to prevent problems such as leaks. A rainwater drain with bottom spout, also known as an EPDM bottom spout , is the ideal solution for this. By using a bottom spout, water is drained efficiently and no water remains on the roof. This contributes to the durability and lifespan of your EPDM roofing.

Choose the right EPDM bottom spout

When choosing an EPDM bottom spout, it is important to take the diameter into account, which depends on the roof surface. In general, larger roof surfaces require a larger diameter. Here are some guidelines:

  • For a roof area of ​​up to 45 square meters, a minimum diameter of 60 mm is required.
  • For a roof area between 45 and 65 square meters, a minimum diameter of 70 mm is required.
  • For a roof area between 65 and 90 square meters, a minimum diameter of 80 mm is required.
  • For a roof area larger than 90 square meters, a minimum diameter of 100 mm is required.

With the right EPDM bottom spout you ensure optimal roof drainage of rainwater and extend the lifespan of your roof.

Installing an EPDM underspout

Installing a bottom spout in your EPDM roof is a simple process. Follow the steps below to correctly place the EPDM bottom spout:

  1. Mark the desired location for the bottom spout on your roof.
  2. Cut an opening in the EPDM foil based on the diameter of the bottom spout.
  3. Place the EPDM bottom spout in the opening and ensure that it is securely attached.
  4. Use EPDM sealant to seal the edges of the bottom spout watertight.
  5. Make sure the sealant is applied evenly and pressed down firmly.
  6. Check whether the bottom spout is properly attached and shows no leaks.

With the correct integration of an EPDM underspout you ensure effective drainage of rainwater and extend the lifespan of your EPDM roofing.

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