How do I install a green roof?
Installing a green roof is very straightforward. Below, you can read how to create a fully-fledged green roof in just a few steps. By using Sempergreen products, the green roof is immediately 95% covered with vegetation.
Want to install a green roof yourself? It really is that simple
Installing a green roof may sound complicated, but with the right set-up, it’s surprisingly simple. Whether you opt for sedum mats, a lightweight system or pre-made sedum trays, you can transform a grey roof into a green oasis in just one day. On this page, you’ll find a step-by-step guide to the installation process.
Installing Sedum Original in 5 steps
Flat roofs are ideal for green roof installations.
- Check that the roof is watertight.
- Apply a root-barrier layer if necessary.
- Install drainage and substrate.
- Unroll the pre-grown vegetation mats.
- Water the roof right away.
Result: a green sedum roof straight away!
Accept marketing cookies to view this video.
Download installation instruction
Installing Sedum Lite in 5 steps
Sometimes, the supporting structure of a flat roof calls for the lightweight Sedum Lite solution. With the special lightweight system featuring a substrate roll instead of roof garden substrate, you can transform your grey roof into a sustainable green roof in no time at all.
- Check that the roof is watertight.
- Apply a root-barrier layer if necessary.
- Install drainage and substrate.
- Unroll the pre-grown vegetation mats.
- Water the roof right away.
Result: a green, lightweight sedum roof straight away!
Accept marketing cookies to view this video.
Download installation instruction
Installing Click ‘n go (Lite) Sedumtrays in 5 steps.
With the Click ’n go Sedumtrays, installing a green roof is very easy. These ready-to-use trays click together to create an instantly green result. To protect the roof covering, we recommend placing a protective membrane underneath the trays.
The Click ’n go Lite Sedumtrays are also a handy, lighter-weight solution. When used in combination with a root-barrier membrane and protective fabric, these rectangular green roof cassettes can store at least 21 litres of rainwater per square metre.
- Check that the roof is watertight.
- Apply a root-barrier layer if necessary.
- Unroll the protective fabric.
- Place the sedum trays.
- Water the roof right away.
Result: a green sedum roof straight away!
Accept marketing cookies to view this video.
Installation instruction Click n’ Go Installation instruction Click n’ Go Lite
Start your green project today
Ready to make a difference? At Sempergreen, we believe in building a greener future, one step at a time. Our innovative solutions are designed to help you decrease your footprint and contribute to a more sustainable world. Join us in replanting the planet!
- Solar Power
- Solargreen Roofs
A.Vogel Visitor Centre fully integrated into nature
- Urban Greening
- Green Roofs
A green crown for an apartment building in Oirschot
- Solar Power
- Green Roofs
Multifunctional rooftop for Rotterdam University
- Urban Greening
- Green Roofs
Green roof strengthens renovation in Zwijndrecht
- Urban Greening
- Green Roofs
Sustainable headquarters for Mercedes-Benz
Frequently asked questions about green roofs
Can a green roof be installed on all types of roofing material?
Yes, if the roofing is waterproof and root-proof, Sempergreen vegetation blankets can be applied to all types of roofing. This applies to flat and pitched roofs.
Do I have to mow my green roof?
No, vegetation blankets are easy to maintain. If desired, vegetation blankets can be pruned, but this is not necessary.
What are the benefits of a green roof?
A green roof offers many benefits: it retains water, purifies the air, reduces temperature, saves energy, increases biodiversity, and extends the lifespan of the roof. In addition, it improves people’s well-being and enhances the value of buildings.
How easy is installation and maintenance?
Installation takes under an hour. The automatic irrigation system—with capillary/wicking method—needs refilling only every 2–4 weeks and includes a grow light.
How much does a green roof weigh?
The saturated weight of a green roof ranges between 40 and 225 kg/m², depending on the system structure and type of vegetation. A traditional Sedum roof weighs an average of 80 kg/m² when saturated.