How this node works
The aluminium mullion is thermally broken by an insulating strip; the glazing unit is clamped against it by a pressure plate, with inner and outer gaskets. A drainage chamber between them collects and weeps out the water, while the inner gasket makes the air seal.
Key points
- Aluminium mullion
- Thermal break
- Inner gasket (air seal)
- Double glazing unit
- Drainage chamber
- Pressure plate + outer gasket
Conceptual, language-neutral drawing for study and orientation — not an execution drawing. Dimensions and verifications belong to the designer.