How this node works
The most critical point of the flat roof: the screed channels the water to the drain, the membrane is dressed into it watertight and a leaf guard prevents clogging. It is oversized and doubled with a safety overflow.
Key points
- Screed to falls
- Membrane dressed into the drain
- Drain (oversized)
- Leaf guard dome
- XPS insulation
- Downpipe
Conceptual, language-neutral drawing for study and orientation — not an execution drawing. Dimensions and verifications belong to the designer.