Life Reusing Posidonia/ 14 VPO Sant Ferran, Formentera
Carles Oliver

Formentera social housing
Carles Oliver

Carles Oliver Barceló, Antonio Martín Procopio,
Joaquín Moyá Costa, Alfonso Reina Ferragut,
Maria Antònia Garcías Roig.
Arquitectos del Instituto Balear de la Vivienda (IBAVI)

Director proyecto Life: Carles Oliver
Director proyecto Life  2012-2015: Sandra Villamarín
Colaboradores: Mª del Mar Amengual, Nus, Miquel Ramon
Arquitecto Técnico:
Alberto Rubido, Xim Torrebella (presupuesto/ control económico obra)
José Luís Velilla Lon (dirección obra/ coordinación SS)
Ingeniería: Miquel R. Oliver, Esteve Font (EEI)
Estructura: Miguel R. Nevado

Situación: C/Sant Jaume 14, Sant Ferran, Formentera. Islas Baleares, España
Cálculo de CO2: Carles Oliver, Alberto Rubido, Mª Antònia Simó (IBAVI), Joana Reus (DGECC)
Consultoría ambiental: Societat Otgànica +10SCCL

Ensayos posidonia y monitorización edificio: Joan Muñoz, Bartomeu Alorda, Cristian Carmona (UIB)

Promotor: Instituto Balear de la Vivienda (IBAVI)
Fecha de finalización de la obra: 22/03/2017

Fotógrafo: José Hevia

The Prototype consists of 14 public housing units in Formentera Island and aims to demonstrate the feasibility of developing a multifamily residential building reducing the associated ecological footprint by the following percentages:

50% energy consumption during construction.

75% energy consumption during useful life.
60% consumption of water.

50% production of waste.

The main innovative aspect is the 50% reduction of CO2 emissions during the execution of works. In order to do it, a proper selection of materials is proposed, preferably low embodied energy materials, recovering, insofar as possible, vernacular architecture techniques:

1. Waste and local raw materials requiring negligible industrial processes.

2. Local renewable green or raw materials.

3. Non local renewable green or raw materials with ecological label.

4. Recycled materials or materials from other areas requiring low-consumption industrial processes.

For instance, it has been used dry Posidonia Oceanica for thermal insulation λ=0,044W/mK, natural hidraulic lime NHL-5 for structures because the lime needs no petrol for its production, and reused windows and bed strips from waste. So we propose a change of paradigm: “Instead of investing in a chemical plant located 1.500km away, we invest the same budget to local unskilled labor, which should extend the Neptun grass to dry under the sun and compact it in pallets, achieving 15cm of insulation in roof. Moreover, it turns out that sea salt acts as natural biocide product and is completely environmentally friendly.”

This model of local architecture, where the project becomes a map of resources of the area, shows that far away from large cities, the most sustainable systems are at hand and we are letting them disappear: the local artisan industry of organic production with raw materials of Km 0.

This approach links environmental issues with the cultural tradition of each region, not only achieving an improvement in air quality and the prevention of global warming but also a recovery of the cities landscape quality. However, in large European capitals, the large volume of work and the practical disappearance of local handicrafts necessitate the requirement of ecological production labels in 100% of the consignments, or at least the optimization of the solutions reducing consumption of materials and energy.


Carles Oliver

(Related Projects)