# Triangular Duette Blind System
Source: https://www.fenetresystems.com/en/triangular-duette-blind/

# Triangular Duette Blind

Double-layer honeycomb fan on triangular glass. The cover underlining the angle arrives with a double buffer on the roof line.

## How Does the Double-Layer Fan Work on a Triangle?

Its fundamental difference from the rectangular arrangement is fan folding.

On triangular glass the double-layer honeycomb works on fan logic: the panel unfolds from the top point down to the base. Where a rectangular blind folds in straight lines, this panel folds radially like a fan.

On the opened surface the nested cells rest layer upon layer; while the fan is closed a double pocket forms across the whole triangle. Even a fixed fan keeps two buffer layers on the glass line.

For the geometric glazing of lofts and gable fronts it is the most natural fit — it tracks the glass contour, cropping and concealing nothing.

## Standout Parts of the System

Fan folding, triangular rail and double-layer panel are the system’s identity.

- Fan Folding The double-layer honeycomb opens like a fan from the triangle’s apex to its base.
- Angular Double Pocket In the triangular zone the nested cells rest layer upon layer; the double buffer keeps on while the fan is closed.
- Fixed or Moving The panel either remains fixed or retracts to the middle.
- Angle-Specific Every triangle is produced to its own measured angle and dimensions.

## Who Is the Triangular Duette For?

Places wanting a heat break along with the cover on an angular window.

On attic gable glass the fan completes the triangle’s geometry — a rectangular blind would blank the angle off and break it. The roof line is the year’s hottest-sharpest façade; the double cell gains its meaning here.

In a modern façade the triangular window is itself an architectural statement; the fan fold highlights the angle instead of flattening it.

On a small triangular window a fixed fan suffices; on large openings the moving version is chosen. For the thin single-cell alternative the [triangular honeycomb blind](https://www.fenetresystems.com/en/triangular-honeycomb-blind/) is described on a separate page.

## Frequently Asked

Does the duette panel gather on a triangle?

A centre-axis gathering variant is offered; compact triangles often go with a fixed fan.

Does it fit every angle?

Isosceles and equilateral shapes are standard fit; irregular angles are produced off a template.

What does the double cell add on a roof triangle?

Gable glass sits on the roof line; two nested honeycomb layers raise a double buffer on this high, sun-open plane.

How is measuring done?

Measurement records the apex angle and base width; the template drawing then enters production.

Only the triangular variant’s fan folding, rail and configuration are covered here; the right product and variant for triangular and trapezoid windows is weighed in the [application decision guide](https://www.fenetresystems.com/en/triangular-trapezoid-window-duette-blind/). Its oval counterpart is covered on the [oval system](https://www.fenetresystems.com/en/oval-duette-blind/).

## Send Your Triangle Measurements

With apex angle and base width, a triangular duette production plan and price are relayed.

[Request a Quote](https://www.fenetresystems.com/en/contact/) [WhatsApp](https://www.fenetresystems.com/en/whatsapp/)