what can I add?

Grasses & a variety of other plants:
You don't need to stick to sedum, we can mix and match different plants according to demand. They are part of a selection that are particularly resilient to conditions on roof tops.
PV panels:
Green roofs actually make PV panels more efficient. They do so because they help maintain a microclimate of 25oc for the panels, which is very important because every 5oc rise makes you loose 8% efficiency in the PV.
Wind turbines:
We collaborate with sustainable energy companies to instal these. Any unused or excess electricity can be exported to the grid and sold to the local electricity supply company. Roof mounted wind turbines need tobe free of any obstructions that may affect their wind speed.
Roof garden design:
We are London's only multi-disciplinary team to include architects, horticulturalists, engineers, designers and builders focusing exclusively on roof gardens and green roofs.
It makes sense. These green spaces in the sky comprising roof gardens, roof terraces and green roofs, bring a host of advantages: economic, environmental and social.