How this node works
At the perimeter the root barrier rises up the parapet; a gravel margin, separated from the substrate by an edge profile, keeps the drainage inspectable and acts as a firebreak strip.
Key points
- Parapet
- Root barrier turned up
- Perimeter gravel margin
- Edge profile
- Substrate + vegetation
- Insulation
Conceptual, language-neutral drawing for study and orientation — not an execution drawing. Dimensions and verifications belong to the designer.