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Kalzip

Kalzip
Innovative Roofing & Façade Solutions – Quality with Kalzip © Kalzip GmbH

The First Choice for Innovative Architecture 

For over 55 years, Kalzip has been at the forefront of aluminium roofing and facade solutions, combining durability, design flexibility, and sustainable technologies to bring architectural visions to life. Whether for new builds or refurbishments, Kalzip redefines possibilities in building envelopes. A broad range of colours and finishes allows for individual expression, while robust construction ensures lasting performance. With over 120 million square metres installed worldwide, Kalzip is part of both iconic landmarks and everyday structures.

The Kalzip NatureRoof transforms green roofing into an energy-efficient solution, improving urban climates and conserving resources. Integrated photovoltaic modules further support sustainable energy generation. Beyond its innovative products, Kalzip provides expert planning support and precision execution through certified professionals. The result: functional, aesthetic, and future-proof building envelopes that meet the highest architectural standards.

Learn more about:

Sustainability and innovation for the architecture of the future

New content for the Gasometer Berlin

Company expertise

  • Facade
  • Roofing
  • Sponsored

    SponsoredGolden roof for the municipal swimming pool

    A swimming pool at the municipal outdoor pool in Abadiño was covered with an indoor structure. The Kalzip standing seam system creates a special accent as a roof with a rounded junction to the facade.

  • The new seven-storey building on Hohlstrasse in Zurich will comprise a ground floor with retail space and public service areas, and five upper floors with commercial space.

    Railway Tracks as a Supporting Structure - How Does That Work? 

    Around 180 kilometres of track are replaced every year on the Swiss rail network. Until now, all this scrap metal has been melted down. However, the first building with a steel framework made from recycled rails will soon be constructed in western Zurich.

  • Landscape architect Line Ramstad is the new chief curator of the Oslo Triennale.

    „One Size Does Not Fit All" 

    Facades made from waste wool, recycled steel from decommissioned ships, housing rather than investment property: Line Ramstad, chief curator of the Oslo Triennale, shows what happens when nature takes precedence.

  • Paul Van Ostaijen Culture Campus in Leuven

    Lava architecten transformed an old mission building in Leuven into a place where circus arts, music, theatre, and dance coexist under one shared roof. Effective soundproofing is the precondition for the shared use of the facility.

  • Even though the main exhibition pavilion in the Giardini was closed, the 2025 Architecture Biennale featured more exhibits than ever before.

    Self-Exploitation in the Celebrity Circus

    At every Architecture Biennale, the curators face the same obstacles: a lack of funding, a great deal of red tape, and an organisation that ignores collective achievements. Why do they put themselves through this? We speak to Albena Yaneva, who spent a year observing the development process of the 2025 Biennale.

  • A vision for the future of Barcelona: Boltshauser Architekten have designed demountable street furniture made from concrete blocks for the Catalan metropolis. The blocks are made from recycled lean-mix concrete layers under roads.

    An End to Downcycling  

    In its current form, concrete recycling does little to help climate protection. The CO₂-intensive cement is lost irretrievably in the process. Boltshauser Architekten are working with a consortium from the Netherlands, Switzerland and Spain on the Respira research project to investigate how this can be avoided.

  • Stress tests have shown that re-use prestressed concrete slabs deflect significantly less than conventional reinforced concrete slabs.

    Slabs Under Tension 

    Concrete floor slabs have the largest carbon footprint of all building elements. In the past, the material was lost irretrievably during demolition. A Swiss consortium is now cutting standard square slabs from buildings due for demolition and using them to manufacture prestressed segmental concrete elements with a higher structural performance than new reinforced concrete.