Windows & DoorsWindows & Doors

1. 1Exterior aluminumFaces the weather. Coated on the outside; the cut face shows the extruded aluminum chambers.
2. 2Polyamide thermal breakLow-conductivity strips join the outer and inner aluminum, so the frame doesn't carry cold straight through to the room.
3. 3Interior aluminumThe room-side half of the frame, kept apart from the outside by the break.
4. 4Opening sashThe moving part of the window — thermally broken in the same way as the frame.
5. 5Insulated glass unitTwo or three panes with sealed cavities. Double or triple glazing is chosen per project.
6. 6Spacer & edge sealHolds the panes apart and seals each cavity at the edge.
7. 7GasketsSeals between glass, sash and frame that close against air and water.
8. 8Glazing beadA clip-on profile that holds the glass in from the room side.

Illustrative model to explain how a thermally broken frame is built — not the exact geometry of any Winhoff profile. The thermal view is a concept sketch, not test or simulation data.