Yellow and pink groundcover flowers in front of a modern glass building

Why choose a green roof?

A well-designed green roof offers demonstrable benefits:
  • Water management

    green roofs retain a large proportion of rainwater and discharge it more slowly. This reduces the load on the sewer network and helps to cut flooding.

  • Protection of the roof structure

    the roof covering is less exposed to UV radiation and temperature fluctuations thanks to the protective vegetation layer, which extends its lifespan.

  • Thermal and acoustic insulation

    a green roof acts as an extra insulation layer and dampens noise from rain or traffic.

  • Biodiversity

    sedum and herbs attract bees and insects, creating valuable nature in urbanised environments.

  • Visual added value

    green roofs bring calm and greenery to every building project, from commercial buildings to residential roofs.

Person kneeling and scraping moss off a flat roof with a scraper

Construction of a sustainable green roof

A technically correct green roof consists of layers that work together for drainage, protection and plant growth. Below you can see the recommended build-up according to the steps of a sedum roof system.

  • 1. Roofing & load-bearing capacity

    First check that the roof covering is in good condition (bitumen, EPDM, PVC) and that the roof structure has sufficient load-bearing capacity (a sedum roof with tiles weighs between approx. 35–55 kg/m², depending on the system).

  • 2. Root-resistant membrane

    Install a root-resistant membrane to prevent roots from sedum or other plants from damaging the roofing.

  • 3. Optional: synthetic fleece

    A synthetic fleece can provide extra protection and enable additional water buffering.

  • 4. Sedum tiles (vegetation layer)

    Lay sedum tiles or sedum trays with a click system on the pre-prepared surface. Keep a vegetation-free zone of around 30 cm along the roof edge, for example filled with roof gravel.

Maintenance & lifespan

A well-designed green roof requires little maintenance, but it is not completely maintenance-free:

  • Remove weeds and tree seedlings twice a year.
  • Fertilise once a year, for example in spring, with a light sedum fertiliser for healthy plant growth.
  • Check gravel edges and drainage outlets and remove leaves and debris.
  • During prolonged drought, additional watering may be necessary.

Thanks to its robust build-up and durable materials, a green roof lasts for decades and retains its ecological benefits.

Green grassy hilltop under a blue sky with scattered clouds

Maintenance & lifespan

A well-designed green roof requires little maintenance, but it is not completely maintenance-free:

  • Remove weeds and tree seedlings twice a year.
  • Fertilise once a year, for example in spring, with a light sedum fertiliser for healthy plant growth.
  • Check gravel edges and drainage outlets and remove leaves and debris.
  • During prolonged drought, additional watering may be necessary.

Thanks to its robust build-up and durable materials, a green roof lasts for decades and retains its ecological benefits.

The power of ECCOsedum

The lightweight and modular ECCOsedum system is built up of multiple layers that together provide drainage, buffering and healthy plant growth.
For slopes up to 15° the system can be installed without additional measures.

Each tray contains three essential layers:

  1. Drainage layer – channels excess rainwater away in a controlled manner.
  2. Substrate layer – nourishes the vegetation and retains water.
  3. Vegetation layer – a densely vegetated mat with various sedum species, supplied with at least 80% coverage.
Stacked black seedling trays with young plants on a patio next to a wall

The power of ECCOsedum

The lightweight and modular ECCOsedum system is built up of multiple layers that together provide drainage, buffering and healthy plant growth.
For slopes up to 15° the system can be installed without additional measures.

Each tray contains three essential layers:

  1. Drainage layer – channels excess rainwater away in a controlled manner.
  2. Substrate layer – nourishes the vegetation and retains water.
  3. Vegetation layer – a densely vegetated mat with various sedum species, supplied with at least 80% coverage.