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Aalta Duet retractable roof opening within a timber frame

The Duet retractable roof

No front beam.
Just uninterrupted views.

A bespoke timber-framed retractable roof that gives Sydney homes dependable weather protection—then opens the space back to light and sky.

5m maximum width
per module

What is a Duet?

An outdoor roof that
doesn't close you in.

The Duet combines a motorised waterproof membrane with a custom timber pergola frame. Its distinctive paired posts and rafters provide strength without relying on a heavy beam across the front of your view.

At the touch of a button, the roof extends smoothly along side tracks for shade and rain protection. When the weather clears, it retracts into neat architectural folds beneath its protective cover.

Duet roof fully extended to protect a leafy balcony from rain and sun
01 Fully protected from rain and sun Dependable shelter whenever the weather changes
Duet roof fully retracted above a landscaped outdoor dining area
02 Fully open to enjoy the beautiful sky Welcome back natural light, fresh air and open sky

Why Duet

Strength in pairs.
Freedom in the view.

01

Uninterrupted outlook

The dual post-and-rafter design usually removes the need for a heavy front beam, keeping the garden, pool or view visually open.

02

Real weather control

Extend the waterproof roof for sun and rain protection, then retract it when you want daylight, ventilation and stars overhead.

03

Architecturally bespoke

Every timber frame is custom made, painted or stained to sit comfortably alongside the home rather than feeling added on.

Made to fit the opening

One system.
Three module layouts.

Each roof module can be made up to 5,000mm wide with a projection of up to 6,000mm. Wider spaces are covered by linking modules side by side in double- or triple-module configurations.

The diagrams show typical 4,600mm module bays. Final widths, projection, roof fall, stack depth, drainage and structural support are confirmed for each site.
Single Duet module with two rafters
01 · Single module

Up to 5,000mm wide

One roof module between two paired rafter lines.

Double Duet module with three rafters
02 · Double module

Two modules side by side

Two roof modules share the centre paired rafter line.

Triple Duet module with four rafters
03 · Triple module

Three modules side by side

Three linked roof modules cover a broader outdoor area.

Watch it move

Protection at
the press of a button.

This is a real Aalta Duet installation—not a product render. Play the video to see the roof travel smoothly along its tracks and stack away.

Real Aalta installation
Custom paired timber frames for a Duet retractable roof

The Duet structure

Designed around
the architecture.

01
Dual posts and rafters

Paired structural members create the Duet's signature rhythm and help preserve an open front elevation.

02
Custom timber finish

Exterior-grade timber can be stained or painted to coordinate with the home and landscape.

03
Discreet track system

The membrane travels evenly along lightweight side tracks and stacks neatly beneath a protective cover.

Close-up of the Duet retractable gutter attached to the front of the roof fabric

Another Duet advantage

A gutter when
you need it.
An open view when you don't.

The Duet can eliminate the need for a fixed front gutter. Instead, a retractable gutter is attached to the leading edge of the roof fabric and travels with the canopy.

When the roof is fully projected, the gutter aligns precisely with the downpipe concealed between the paired front posts, directing rainwater into the drainage system. When the roof retracts, the gutter retracts with it—leaving the front of the structure visually open.

No fixed front gutter Integrated water collection Uninterrupted outlook

Somfy motorisation

Weather control
at your fingertips.

A Somfy motor allows the Duet roof to extend or retract smoothly by remote control, making it easy to change the space as conditions shift.

01
Remote operation

Open, close or stop the roof precisely from a handheld controller.

02
Optional rain sensor

The system can be programmed to respond when rain is detected, helping protect the outdoor area.

03
Optional wind sensor

Wind automation can be configured as part of the site-specific control strategy.

Somfy
Somfy remote controller for a motorised Aalta retractable roof

All-season protection

Built for Sydney
weather.

Duet is more than overhead shade. The roof, frame and drainage are resolved as one site-specific outdoor system.

Sun Control heat and glare
Rain Waterproof membrane
Drainage Integrated guttering
Control Motorised operation

Duet in motion

Open-air living.
Weather protection on demand.

Discuss your space ↓

From Aalta on Instagram

More roofs.
More real projects.

Play these posts here or open them on Instagram for the full project story.

Duet retractable roof opened to reveal a clear blue sky

Retracts neatly

More sky.
More light.
More choice.

A permanent roof is always overhead. Duet gives you the freedom to change the space as the weather and the day change.

Questions

Before you arrange
a consultation.

What makes the Duet different? +

The Duet uses paired timber posts and rafters to create a robust pergola frame without the visual weight of a conventional heavy front beam. The result is a cleaner outlook and a more architectural structure.

Is the roof waterproof? +

Yes. The PVC-coated polyester membrane is designed as part of an integrated weather-management system with guttering, flashing and downpipe connections configured for the individual site.

Can it open completely? +

The motorised membrane concertinas back along its side tracks and stacks beneath a protective cover, bringing natural light and open sky back into the space.

Can the frame match my home? +

Yes. Duet frames are custom made in exterior-grade timber and can be stained or painted to complement the architecture, joinery and surrounding landscape.

How large can a Duet be? +

A single Duet module can be made up to 5,000mm wide with a projection of up to 6,000mm. For wider areas, double- and triple-module layouts place multiple roof modules side by side. Final module widths, roof fall, drainage and structure are confirmed for the individual site.

Does it need council approval? +

Approval requirements vary with the property, scope and local council. Aalta can identify the likely considerations during consultation, with formal advice obtained where required.

Let's create your outdoor space

Start with the view
you want to keep.

Speak with Aalta about a custom Duet retractable roof for your home, renovation or commercial project.