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Office building at Tanger 73

The first building with a charred wooden façade in 22@.

Oficines Entegra a Barcelona
Oficines Entegra a Barcelona

Entegra offices in Barcelona

An nearly zero consumption office building in 22@ that promotes the sustainable mobility of its users and the relationship with natural elements in the work environment. Due to its carbonized wooden façade that reduces the carbon footprint of the building and a series of passive measures that reduce its energy demand, the project obtains LEED Gold certification.

Authors

Batlleiroig Arquitectura. Enric Batlle Durany, Joan Roig i Duran, Albert Gil Margalef – Architect

Team

Anna Lloret Papaseit, José Sanz Gorordo, Anna Porta Almagro, Marta Sanz Cuso – Architect

Collaborators

BIS Structures – Structural engineering, ENAR Envolventes Arquitectónicas – Facade, G3 – Building engineers

Promoter

Patrizia AG, Urban Input

Construction company

OCP – Obra Civil Profesional

Project status

Under construction

Start date

2020

Total area

4.736 m2

Outdoor surface

310 m2

A developing environment

The Entegra building is located on a corner of the 22@ technological district, recognizing the characteristic corner of the Cerdà plot. Its plot is part of a planning carried out by batlleiroig in 2008: the planning of the Can Tiana and Fàbrica Pons blocks, in which the studio has already designed several buildings such as the CMT headquarters, the Hotel SB Glow or the Luxa offices.

The program is resolved with a public and diaphanous ground floor in contact with the free spaces of the block and eight office floors in which the layout of the structural core in the dividing wall allows open, flexible and adaptable work spaces to any company.

© Nbucle

A dynamic access that enhances the passage system

Much importance is given to the urban fit of the ground floor of the building in its surroundings to ensure that it has a welcoming, dynamic access, on a human scale and as permeable as possible with the interior passages of the block.

Due to the creation of the large access porch, located on the corner of the block, it is possible to expand the system of passages, thus enhancing the relationship between the interior and exterior of the building. In addition, the porch pillars are designed in a trapezoidal shape to give the entrance a distinctive look.

© Nbucle
© Nbucle

An innovative façade solution

In a strong commitment to innovation, the building has a charred wood façade following the Shou Sugi Ban method, a traditional Japanese technique over three hundred years old adapted to the strictest current requirements. It consists of burning the outer layer of wood, so as to ensure protection against humidity, solar radiation and insect attack.

Thanks to this choice, the building’s carbon footprint is considerably reduced and the building’s façade is resolved with a highly durable natural system that has very low maintenance.

The façade plays with the projections of the floors, providing protection against solar radiation and reducing its energy demand. With the same objective, the optimal percentage between glass and solid in each facade was studied, reaching an optimal balance between the use of natural lighting and the control of solar radiation, that is, between user comfort and energy efficiency. of the building. In addition, different groupings of the densities by floors have been made in such a way that a movement is given to the façade between the horizontal flights that mark the edges of the slab.

 

Spaces in contact with vegetation and natural elements

Each space of the project is designed to provide well-being to its users. All floors have spaces in contact with terraces and vegetation, in such a way that biophilia is promoted and the relationship between offices and outdoor spaces is intensified.

Inside, the finishes are taken care of in detail and the installations and exposed slabs are maintained, incorporating an innovative formwork solution with an irregular texture to improve acoustic conditioning.

© Nbucle
The Entegra office building is a project that, due to its sobriety, efficiency and innovative proposals, manages to stand out in the 22@ technology district. José Sanz GorordoArchitect / Building / Senior Project Director

Prioritizing sustainable mobility

The regulations required a provision of car parking , but the access ramp would hinder the system of public spaces that was proposed. For this reason, it is decided to dispense with the parking for cars and thus preserve the prominence of the porch and the connection with the passage.

In exchange, a provision for bicycle parking greater than the regulations is offered, in addition to incorporating changing rooms to promote sports among the users of the building. The vocation of the building is aimed at the well-being of users from the moment they start their journey to work.

In short, the adopeted solution  prioritizes pedestrian connections and sustainable mobility. A commitment to the new mobility paradigm that has left behind cars as the protagonists of our cities.

These measures make the building the first in Europe to obtain the Cycling Friendly certification, which establishes a quality standard for companies that are committed to facilitating and motivating the daily use of bicycles among their workers.

© Nbucle

Sustainability, a priority in all phases of the project

One of the main requirements from the beginning of the project was to achieve the maximum energy efficiency possible. For this, a logical design is chosen that allows all the sustainability premises to be integrated and coordination between all disciplines is worked to the maximum to achieve it.

The Entegra offices worked from the first phases of the project to establish passive strategies that reduce the energy demand of the building.

All roof elements are designed in white to prevent their materials from absorbing and storing thermal energy. Natural ventilation is also favored thanks to an intelligent system that, through sensors, opens windows on the façade to take advantage of cross circulation as well as for mechanical conditioning.

Thanks to all these passive strategies and the maximum optimization of the facilities, it reaches about 23.9 kW/h/m<sup>3</sup> per year, a figure that allows it to be considered as a nearly zero energy building (nZeb) and which represents the maximum energy rating to which you choose by locating yourself in the 22@ district.

 

Projects

The works of the Entegra offices are advancing rapidly in 22@!

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The works of the Entegra offices are advancing rapidly in 22@!