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Winter garden facade with wide glazing opening onto a terrace

Winter Gardens & Custom Applications

Sandwich Panel Winter Garden

A year-round winter garden built with an insulated sandwich roof panel and aluminium joinery.

A sandwich panel winter garden combines an insulated roof panel, with foam insulation sandwiched between two metal face sheets, with an aluminium joinery system, turning a terrace or balcony into an enclosed space usable in every season. The side walls are closed with glazed joinery, and the roof with the insulated panel. Metalux measures, manufactures and installs both the joinery and the roof system in-house.

Where is it used?

The system suits converting villa and apartment balconies into enclosed living space, terrace cafes, and restaurants aiming for a seating area usable throughout the year.

Advantages

  • The insulated roof panel helps keep the interior at a more even temperature in summer and winter
  • Sliding or folding joinery options for the side walls let the space open up fully in summer
  • The panel surface is available in different colours to match the building facade
  • Creating an enclosed volume extends how much of the year the balcony or terrace can be used

Things to consider

Condensation and water drainage at the roof-to-joinery junctions need to be resolved carefully at design stage. Panel slope should be planned with enough fall for effective rainwater drainage. Whether the addition places extra load on the existing building structure is assessed before installation.

Key features

  • 01

    Insulated Roof

    The sandwich panel helps keep the interior more stable year-round.

  • 02

    Opening Side Walls

    Sliding or folding joinery lets the space open fully in summer.

  • 03

    Extended Season

    The enclosed volume makes the balcony or terrace usable all year.

  • 04

    In-House Build

    Metalux installs the roof and joinery system with its own team.

Applications

  • Villa
  • Balcony
  • Terrace
  • Restaurant
Winter garden facade with wide glazing opening onto a terrace

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