Castellana 77, a sustainable building with a glazed facade from Guardian Glass
Publisher
Tisková zpráva
03.01.2020 13:45
Tisková zpráva
03.01.2020 13:45
Castellana 77, located in the center of Madrid's financial district, AZCA, has come back to life after two decades of being out of operation, thanks to the architectural firm luis vidal+arquitectos. The original tower, built in 1977, is now a 62-meter-high administrative building that enhances the urban skyline in its own distinctive way. After reconstruction, the building is a leader in energy efficiency and sustainable development. Additionally, it has received the prestigious LEED Platinum certification. This achievement is largely attributed to the highly efficient glazing products from Guardian Glass, which are used in the building's facade.
Two fundamental pillars of this architectural project were the ingenious use of natural light and the desire to create a building that would be a landmark in its surroundings. “The goal was to modernize the building; the result is an entirely new structure that is flexible and sustainable while also providing high-quality commercial spaces. Its appearance also naturally fits into the panorama of Madrid, a city that combines respect for its roots with an ambitious outlook for the future,” said Luis Vidal.
This was aided by a completely new facade with sharp vertical modification made from coated glass Guardian SunGuard® SN 70/41, forming a highly selected, glazed, suspended facade.
This modern, inspiring building system includes a built-in feature providing extra protection against solar radiation thanks to ribbing that extends 60 cm, which provides shade (there is a 15 cm wide space between the ribbing and the facade for cleaning and maintenance). These, in combination with Guardian glass, further enhance the overall functional characteristics of the building.
The renovation, covering a total area of 21,000 m², also included the modernization of all of Castellana 77's facilities. The reconfiguration of the 18 above-ground floors (totaling 16,261 m²) allowed for greater flexibility in the ground plan. The ground floor is designed for both offices and commercial spaces. The original four-story parking areas and the service level of the building were also renovated. The five underground floors now have a capacity of over 200 parking spaces.
The suspended facade is made from an extruded aluminum profile system and infill panels made from laminated, carefully selected glass with a neutral coating SunGuard® SN 70/41 as an external element. This is one of the options for coated glass in the range of highly functional architectural glasses by Guardian SunGuard®. With 70% light transmission, this solution offers a neutral appearance with maximum solar control. The facade system allows for free ventilation of the glazing edges, which prevents undesirable condensation.
During the day, it creates a play of sun and shadows on the facade (depending on the intensity of light), clearly changing patterns. Several kilometers of LED lights installed on the facade's ribbing with various backlighting configurations give the building a completely different identity at night.
The facade of Castellana 77 with SunGuard® SN 70/41 glass units and EFTE ribbing allows for low emissions and high solar control. The effective design of the facade leading to significant energy savings and greater comfort for the building's occupants was developed based on a thorough analysis of the building's exposure to sunlight and shadow on the west, east, and south sides conducted every day of the year at various key times.
LEED is one of the most prestigious global certifications that evaluates the sustainability of buildings and advocates for the construction of financially viable eco-friendly properties. The Castellana 77 building received a certification in the Core & Shell system in the "Platinum" category.
This honor was awarded to the building, among other reasons:
Guardian Glass
Guardian Glass, the largest company in the Guardian Industries group, is one of the world's largest producers of float glass, coated glass, and other float glass products. In its 25 float glass manufacturing plants worldwide, Guardian Glass produces highly efficient glass for outdoor use (both commercial and residential buildings), interior architectural use, transportation, and technical products. Guardian glass can be found in homes, offices, cars, and many architecturally significant buildings around the world. The Guardian Glass Science & Technology Center continuously works on creating new products and solutions using state-of-the-art technologies to help customers see what is possible – see what’s possible®. Visit guardianglass.com.
About Guardian Industries
Guardian Industries is a global company based in Auburn Hills, Michigan, with plants in North and South America, Europe, Africa, the Middle East, and Asia. The companies of the Guardian group employ approximately 18,000 people and manufacture highly functional float, coated glasses and products for architectural, residential, interior, transportation, and technical use. They also supply high-quality chrome and painted plastic parts for the automotive industry. Guardian's vision is to be the preferred partner for its customers, suppliers, employees, and communities based on mutual benefit. Therefore, we continuously strive to improve people’s lives by providing products and services that they value more than other alternatives. At the same time, we do all this responsibly, consuming fewer resources. Guardian is a wholly-owned subsidiary of Koch Industries, Inc. Visit guardian.com.
luis vidal + arquitectos
luis vidal + arquitectos is an international architectural firm that provides high-quality and innovative design-driven solutions for challenging projects. The studio has participated as a leading group of architects in the project of terminal 2 of London Heathrow Airport. It has branches across Spain, the United Kingdom, Japan, the Dominican Republic, the United States, and Chile. It employs over 150 architects who together utilize a strong background and solid experience across a wide range of fields including planning, construction, and industrial design.
Founded in 2004, luis vidal + arquitectos has built a consistent professional portfolio with more than 200 projects of various scales. The studio is known worldwide for its expertise in designing buildings in aviation and healthcare, having become one of the leading and most innovative firms, aimed at providing functional, responsible, and professional designs as a response to today's urban and social challenges.
Two fundamental pillars of this architectural project were the ingenious use of natural light and the desire to create a building that would be a landmark in its surroundings. “The goal was to modernize the building; the result is an entirely new structure that is flexible and sustainable while also providing high-quality commercial spaces. Its appearance also naturally fits into the panorama of Madrid, a city that combines respect for its roots with an ambitious outlook for the future,” said Luis Vidal.
This was aided by a completely new facade with sharp vertical modification made from coated glass Guardian SunGuard® SN 70/41, forming a highly selected, glazed, suspended facade.
 |
| Building Castellana 77. Photo © luis vidal + arquitectos. All rights reserved. |
This modern, inspiring building system includes a built-in feature providing extra protection against solar radiation thanks to ribbing that extends 60 cm, which provides shade (there is a 15 cm wide space between the ribbing and the facade for cleaning and maintenance). These, in combination with Guardian glass, further enhance the overall functional characteristics of the building.
The renovation, covering a total area of 21,000 m², also included the modernization of all of Castellana 77's facilities. The reconfiguration of the 18 above-ground floors (totaling 16,261 m²) allowed for greater flexibility in the ground plan. The ground floor is designed for both offices and commercial spaces. The original four-story parking areas and the service level of the building were also renovated. The five underground floors now have a capacity of over 200 parking spaces.
The glass facade is living and effective
The construction of the facade of Castellana 77 was divided into two phases. First, the completely outdated, original facade of the building suffering from significant wear was dismantled. This was followed by the installation of the new shell. Work was done with several types of facades according to area and orientation: suspended facade, cladding facade with protective slats, and ventilated facade.
The suspended facade is made from an extruded aluminum profile system and infill panels made from laminated, carefully selected glass with a neutral coating SunGuard® SN 70/41 as an external element. This is one of the options for coated glass in the range of highly functional architectural glasses by Guardian SunGuard®. With 70% light transmission, this solution offers a neutral appearance with maximum solar control. The facade system allows for free ventilation of the glazing edges, which prevents undesirable condensation.
 |
| Building Castellana 77. Photo © luis vidal + arquitectos. All rights reserved. |
Ribbing made from EFTE for better energy efficiency
Another notable feature of the architectural work on Castellana 77 is the EFTE (ethylene-tetrafluoroethylene) ribbing designed specifically for this project. The special orientation and curvature of the ribbing allow it to flow through the building, giving it a unique, distinctive shape. However, the ribbing does not serve solely an aesthetic purpose. Its primary function is to enhance energy efficiency and sustainability, as it protects the building from direct sunlight. EFTE, as an advanced material, is light-permeable but not heat-permeable, making it an ideal material for creating backlighting. This also allowed architects to create a continuously evolving facade. |
| Building Castellana 77. Photo © luis vidal + arquitectos. All rights reserved. |
During the day, it creates a play of sun and shadows on the facade (depending on the intensity of light), clearly changing patterns. Several kilometers of LED lights installed on the facade's ribbing with various backlighting configurations give the building a completely different identity at night.
The facade of Castellana 77 with SunGuard® SN 70/41 glass units and EFTE ribbing allows for low emissions and high solar control. The effective design of the facade leading to significant energy savings and greater comfort for the building's occupants was developed based on a thorough analysis of the building's exposure to sunlight and shadow on the west, east, and south sides conducted every day of the year at various key times.
 |
| Building Castellana 77. Photo © luis vidal + arquitectos. All rights reserved. |
Sustainability and LEED certification
Castellana 77 is now a highly sustainable building. For the reasons mentioned above, the building has received the LEED (Leadership in Energy and Environmental Design) certification awarded by the American organization Green Building Council, a group of leaders in construction promoting eco-friendly practices in building design. |
| Building Castellana 77. Photo © luis vidal + arquitectos. All rights reserved. |
LEED is one of the most prestigious global certifications that evaluates the sustainability of buildings and advocates for the construction of financially viable eco-friendly properties. The Castellana 77 building received a certification in the Core & Shell system in the "Platinum" category.
This honor was awarded to the building, among other reasons:
- Energy efficiency: The glazed facade and solar protective ribbing along with energy management and performance provide maximum thermal and light comfort for the building's occupants. This helps reduce energy consumption by up to 33% annually compared to a conventional building of the same utility and surface area. The air conditioning and lighting systems have 46% and 34% lower consumption, respectively.
- Natural lighting and views: Up to 95% of employees and occupants of Castellana 77 utilize natural light and have a direct view to the outside.
- Indoor air quality: Energy-efficient air conditioning system based on 100% outside air intake.
- Location and a wide range of access options to the building.
- Efficient water use achieved by adding water-saving sanitary fixtures, allowing the building to achieve a 39% reduction in water consumption compared to similar type buildings.
- Emphasis on sustainability: After renovation, the building mainly uses recycled materials of certified local origin.
- Low or zero emissions: 100% of materials have no (or only minimal) volatile organic compound emissions.
Guardian Glass
Guardian Glass, the largest company in the Guardian Industries group, is one of the world's largest producers of float glass, coated glass, and other float glass products. In its 25 float glass manufacturing plants worldwide, Guardian Glass produces highly efficient glass for outdoor use (both commercial and residential buildings), interior architectural use, transportation, and technical products. Guardian glass can be found in homes, offices, cars, and many architecturally significant buildings around the world. The Guardian Glass Science & Technology Center continuously works on creating new products and solutions using state-of-the-art technologies to help customers see what is possible – see what’s possible®. Visit guardianglass.com.
About Guardian Industries
Guardian Industries is a global company based in Auburn Hills, Michigan, with plants in North and South America, Europe, Africa, the Middle East, and Asia. The companies of the Guardian group employ approximately 18,000 people and manufacture highly functional float, coated glasses and products for architectural, residential, interior, transportation, and technical use. They also supply high-quality chrome and painted plastic parts for the automotive industry. Guardian's vision is to be the preferred partner for its customers, suppliers, employees, and communities based on mutual benefit. Therefore, we continuously strive to improve people’s lives by providing products and services that they value more than other alternatives. At the same time, we do all this responsibly, consuming fewer resources. Guardian is a wholly-owned subsidiary of Koch Industries, Inc. Visit guardian.com.
luis vidal + arquitectos
luis vidal + arquitectos is an international architectural firm that provides high-quality and innovative design-driven solutions for challenging projects. The studio has participated as a leading group of architects in the project of terminal 2 of London Heathrow Airport. It has branches across Spain, the United Kingdom, Japan, the Dominican Republic, the United States, and Chile. It employs over 150 architects who together utilize a strong background and solid experience across a wide range of fields including planning, construction, and industrial design.
Founded in 2004, luis vidal + arquitectos has built a consistent professional portfolio with more than 200 projects of various scales. The studio is known worldwide for its expertise in designing buildings in aviation and healthcare, having become one of the leading and most innovative firms, aimed at providing functional, responsible, and professional designs as a response to today's urban and social challenges.
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