# Horizontal Zip Screen
Source: https://www.fenetresystems.com/en/horizontal-zip-screen/

# Horizontal Zip Screen

The form for horizontal and sloped planes. The fabric travels on two side rails and works without bagging under counter tension.

## The System’s Four Parts

In the horizontal form the tension holds the plane, the rails carry the fabric.

- Motorised Cassette The rolling unit mounts on one edge of the opening. The fabric leaves the cassette and crosses the plane.
- Side Guide Rails Two profiles carrying the fabric edges on the horizontal plane. The main element preventing sag.
- Tensioning Unit The counter-pull system keeping the fabric taut on the plane. The sine qua non of the horizontal form.
- Carrying Bottom Bar The moving profile at the fabric tip. On reaching the open edge the tension is locked.

## Application Areas

Three typical sections. In each, the cassette on one edge, the rails on two sides.

Horizontal zip screen application areas and notes
Area — Application — Note
Glass Roof — Shading above winter-garden and roof glass — Cuts the heat above the glass
Pergola Top — Horizontal fabric covering the pergola opening — Twin rails on rectangular sections
Sloped Plane — Taut fabric on angled glass surfaces — The tensioning unit is set to the slope

## Standout Features

The technical meaning of top-down shading.

- Sag-Free Surface Two rails + counter tension keep the fabric flat — no bagging on the horizontal plane.
- Heat Control The solar load cut above the glass never reaches the interior.
- Compact Cassette In the closed position the fabric fits the cassette; the opening clears completely.
- Motorised Standard Travel and tension run on the motor; automation with sensors.

## Questions About the Horizontal Zip Screen

Can the vertical zip be used horizontally?

No. The vertical system’s unit is designed for downward hanging. On the horizontal and sloped plane, a separate roof form holding the fabric with counter tension is required.

Can it mount to a glass roof?

Yes — that is this form’s main application. The cassette goes on one edge of the opening, the rails on the two sides; the carrying profile and section are verified at survey.

Does it carry a rain load?

This system is for shading — not a pergola cover designed for water drainage. The fabric is gathered in rain.

The planes where the horizontally opening zip arrangement is used are shown in the [application areas](https://www.fenetresystems.com/en/zip-screen-application-areas/); its vertical counterpart is given on the [vertical system](https://www.fenetresystems.com/en/vertical-zip-screen/).

## Let Us Draw the Section Together

With the opening measurement, slope and carrying-profile data the right tensioning unit is recommended.

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