Sedum roof
A sedum roof is a roof with succulents. These are strong plants that absorb moisture in their leaves. Sedum planting is very suitable because these plants can store a lot of water and thus can withstand long droughts.
The amount of water a sedum roof can hold is limited though, so with just a sedum roof you are not yet completely water-ready. For example, combine a sedum roof with connecting the rainwater pipe to an infiltration facility or some other solution.
Cost
A sedum roof is the cheapest variant of green roofs.
Space use
A sedum roof costs no extra space in your garden.
Difficulty
It is important that the roof can support enough weight to prevent leaks. The roof structure must have enough load-bearing capacity.
Earthmoving
No earth moving is required. However, the substrate and plants must be installed on the roof.
Maintenance
As in the garden, plants on the roof also need maintenance. Fertilizing annually is good for the plants. Tip: Before installing, think about maintenance. Checking drainage is important.
Climate Goals
Sedum roofs reduce heat stress. It also slows and reduces stormwater runoff. The roof also contributes to biodiversity. Sedum roofs do not solve the problems during heavy rainfall; the water storage is not large enough for that. In that case, a combination with an infiltration facility or the construction of a retention roof is needed.
Biodiversity
Contribution to improving biodiversity
Points of interest
- The roof must be able to support at least 50 kg/m2.
- Health that drains remain clear so that water can always leave.
- Check the drains regularly.
- During maintenance, weeds must be removed.
- Annual fertilization benefits the planting.
