A 300 - 500mm wide layer of 20-40mm washed pebbles or gravel should be applied as a vegetation barrier around the perrimeter of the roof and around any roof penetrations (drainage outlets) or roof openings (skylights, windows).
Lindum Green Roof Edging can be used to retain or separate the green roof materials. Manufactured in the UK from high % recycled content aluminium, supplied pre-punched and profiled in 2.4m lengths in a choice of heights for quick installation. Lindum Green Roof Edging can be spray painted to RAL colours if required (additional lead time applies).
Corner connectors and straight-through connectors are available.
A flexible curved Green Roof Edging profile is also available in a range of heights