Back in February 2009 we were approached by Paul Slawson of Evergreen Roof Gardens Ltd to quote for a wildflower roof for the Interpretation centre at Cardiff Castle. His client, Cardiff County Council wanted a green roof system which would replace the failing sedum green roof as well as being self-sustaining and robust.
The project involved a mix of sloped and flat roofs which equated to an area of 270m². Firstly an irrigation system was installed before 600 bags of substrate were lifted up onto the roof and placed around the perimeter. Loose substrate was used to back-fill the remaining area to the depth of the pre-filled substrate sacks, which was 100mm (the minimum depth we recommend for our green roof system). Finally the Wildflower Roof Turf was laid on top of the substrate.
By April 2009 the project was complete and continues to impress Paul’s clients, Cardiff County Council and the thousands of visitors to the castle!
Paul has very kindly sent us over some recent photos of the castle and the roof turf. They look fantastic, thanks Paul!
