Puig is an international company operating in the fashion and fragrance sectors. Founded in 1914 by Antonio Puig Castelló in Barcelona, Spain, it is still managed by the Puig family today. Employing 4,136 people worldwide, Puig markets its products in 130 countries and is directly present in 21 of them.
Leader of the Spanish fashion market
In the late 1990s in line with its expansion policy, Puig acquired several Spanish companies. These operations strengthened its leadership of the Spanish market. Under the acquisition drive, not only were Adolfo Dominguez, Massimo Dutti, Italy’s Prada, France’s Jean Paul Gaultier and other brands assimilated into the Puig portfolio, 45% of the shares of the French group Hermès were also purchased.
New headquarters round off the success
And there was just one thing needed to complete the company: new headquarters at the heart of its home city of Barcelona. Strategically situated, the building is located in the municipality of Hospitalet de Llobregat, close to Barcelona’s Fira, the international exhibition area. The lead architects were Rafael Moneo and Lucho Marcial and the main construction phase was from July 2012 to August 2013.
The 22-storey tower is an amazing 109 meters high with a total façade area of 20,000 m2 (double skin). Though much of the building’s energy needs is covered by solar collectors and photovoltaic panels there was a strong request of energy conservation, both for operational energy for cooling and heating as well as for embodied energy of construction materials.
The glass and metal elements are bonded entirely with Sikasil® SG-550, the new generation of high-strength silicones. The challenge here was to bond very big glass panes of 2.6 x 2.7 m solely with silicones. Average pane sizes are in the region of 1.5 x 2.5 m. The bigger the panes, the higher the loads to be borne by the silicone joints.
Additionally, high wind loads of 3.1 kPa (kilopascal) - twice those in Central European countries such as Germany and Switzerland - also had to be factored in because of the “once in a century” storms expected in Barcelona.
Saving aluminum costs
Both facts are counterproductive to the key feature for the architects; the slim aspect of the aluminum frames was a source of satisfaction to both them and the building owner. But by using high-strength Sikasil® SG-550, the aspect of the frames could be reduced by 30% (from 30 mm to 21 mm; 2 x 9 mm = 18 mm,). For the owner this spelled a saving of 10% in aluminum material and costs. Ultimately, material cost savings of 15% were made with aluminum, spacer and silicone consumption.
High energy efficiency level for decades
Further, Sikasil® IG-25 HM Plus is used as insulating glass secondary sealant. Using argon-filled instead or air-filled IG units reduces the transfer of energy from the façade by about 30%. This means lower energy consumption for cooling in summer and less heating in winter. Employing Sikasil® IG-25 HM Plus as IG secondary sealant, an argon loss rate of as low as 0.5 % per year can be achieved. So even after a service life of 30 years, the energy efficiency level will still be very high.