Perforations to optimize energy efficiency

Office Building Tagus Gas


This new headquarters for Tagus Gás in Cartaxo, fifty miles from the Portuguese capital, is the country’s first office building to receive BREEAM certification. Designed by international practice Saraiva & Associados in partnership with consultants Ecochoice, the structure features an array of sustainability measures aimed at reducing its environmental impact and optimizing its energy efficiency.


Project Data


Parque de Negocios do Cartaxo, Portugal

Type of building

Industry Building


Saraiva & Associados, Lisbon (Miguel Saraiva, Lara Gomes, Bruno Pereira)

Installed Swisspearl® products

Swisspearl® CARAT, Onyx 7099

Installed Swisspearl® panels in m2




Building period



Fernando Guerra, FG + SG, Lisbon




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95% of Swisspearl® fiber cement is made up of natural raw materials from the Swiss mountains: cement, pulverized limestone, water and air. This ensures an effective protection of material resources, avoiding unnecessary transport distances. 

Swisspearl® fiber cement panels are manufactured with low energy and a high level of environmental awareness. The manufacturing process based on a closed water cycle and a slow natural 28 days curing time requires little energy. Within the factory, panels are only transported by electric lifting trucks , - i.e. no colloid dust. The panels are 100% environmentally friendly since neither the raw materials nor the production process contain any dangerous substances.

With a lifetime of over 40 years, Swisspearl® improves both the ecological and economical outcome of every building envelope. When developing its products, Swisspearl® draws on its own exciting history, and examples of pioneering architecture, as well as seminal advancements in technology. This is what also makes Swisspearl® the sustainable material of tomorrow.

The Swisspearl® cladding system is in accordance with the ultimate technology of uninterrupted rear ventilation. This provides the key to energy conserving solutions both for winter and summer and effectively protects the building structure from the elements for a very long time.

Swisspearl® - A Swiss pearl for the environment.

Swiss Premium

Swisspearl® products, manufactured to Swiss quality standards, from the Swiss workshops in Niederurnen and Payerne have become an essential part of Swiss building culture and have also quickly won over the rest of the (building) world. Swiss authorities testify to over 40 years of functional life expectancy.

Swisspearl®'s Research & Development teams have always expanded their unique expertise regarding fiber cement material technology, coloration and application of whole systems. These significant technological progresses are the backbone of the Swiss quality.

95% of Swisspearl® fiber cement is made up of natural raw materials from the Swiss mountains: cement, pulverized limestone, water and air.

Swisspearl® - A Swiss pearl for the world.


Contact us

Swisspearl®'s Area Managers and its headquarter are always available to answer any questions relating to the Swisspearl® systems and details or customized tailored solutions and colors.  

Tel + 41 55 617 11 60
Fax + 41 55 617 12 71