Full Renovation of a residential building constructed in 1913 at 11 Principe de Vergara Street, Madrid

by Santiago Bouzada Biurrun
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2015-06-30 17:35:48
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Spagna
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17191 / ES

Renovation

Building Type : Collective housing < 50m
Construction Year : 2015
Delivery year : 2015
Address 1 - street : PRÍNCIPE DE VERGARA 11 28016 MADRID, España
Climate zone :

Net Floor Area : 3 935 m²
Construction/refurbishment cost : 5 648 762 €
Cost/m2 : 1435.52 €/m²

Proposed by :

Primary energy need :
32.8 kWhpe/m².year
(Calculation method : RD: 47/2007 )

Energy consumption

Economical buildingBuilding

< 50A

51 à 90B

91 à 150C

151 à 230D

231 à 330E

331 à 450F

> 450G

Energy-intensive building

The entire renovation project for the residential building at 11 Príncipe de Vergara street is based on three key issues:

- patrimonial and heritage respect, and special admiration for the original 1913 project designed by modernist architect Eugenio Fernández Quintanilla

- creation of unique and sophisticated spaces with all the features that a XXIth century home shall offer

- and special attention paid to people (both users and third parties), environment and energy efficiency

A proof of that is the recuperation of original materials and shapes, the combination of spatial and open rooms, the big and effective isolation systems applied to windows, façades, roofs and floors, the extraordinary gardened areas and the accessibility of all the ground floor spaces.

See more details about this project

http://www.molior.es/proyectos/rehabilitacion/edificio-principe-de-vergara-11/

Data reliability

Assessor

Stakeholders

Function : Designer

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Function : Designer

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Function : Facility manager

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Function : Construction company

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Function : Structures calculist

Function : Others

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Function : Designer

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Contracting method

Separate batches

Owner approach of sustainability

The developer was advised by the architects team in order to reach these three main goals: respect for the original building, creation of sophisticated and unique spaces, and sustainability of the whole intervention and life cycle.

Architectural description

Everyone who has dealed with the renovation of a listed building like this, has confronted a lot of difficulties in order to achieve the requirements and needs of a XXIth century familiy. The're hard legal restrictions to prevent damages to the cultural values of this kind of buildings. Nevertheless the developer and the architects' team found this issues as an extra motivation to design a highly energy efficient building with great cuts of energy consumption values. For example at the façades the intervention had to be based on a long search of the best insulation options for the interior layer, on the construction and design of new doors and windows based on the original design and with the original materials but with great insulation values; and on the inclusion of high performance glass types. The accessibility of all the ground floor spaces was also a goal to achieve so that everyone can enjoy the great tour through the green spaces that ends at the huge vertical garden of the rear court. This "presence of the green" makes the building a living organism.

Energy consumption

Primary energy need : 32,80 kWhpe/m².year
Primary energy need for standard building : 81,80 kWhpe/m².year

Calculation method : RD: 47/2007

Final Energy : 21,00 kWhfe/m².year
Initial consumption : 139,20 kWhpe/m².year

Envelope performance

Envelope U-Value : 0,29 W.m^-2.K^-1

More information :

Design, shapes, colours, materials, carpentry, quality and any other characteristict of the building façades (both interior and exterior) are law protected. Because of this all the envelope insulation efforts have been concentrated in the interior layers of the envelope:
- There's a new multilayered reflective material. It works with the dry wall profiles in order to create a very effective closed air chamber
- There are new timber carpentries with the original design in order to make them able to carry insulated glazing (with air or argon chamber depending on the cases)
- The roof has been designed with a XPS 12cm. thick layer
- And the ground floor has been constructed over a cavity system basis that creates a closed air chamber. In addition there is also a MDF board plus a rockwool layer.
As a result of this constructive systems we have reached the following remarkable data for this latitude:
U average Ground Floor 0.49
U average Façades 0.29
U average Roof 0.19
U average Windows 1.30

Real final energy consumption

Real final energy consumption/m2 : 109 401,00 kWhfe/m².year

Systems

Heating system :

Gas boiler

Hot water system :

Condensing gas boiler

Cooling system :

VRV Syst. (Variable refrigerant Volume)

Ventilation system :

Free-cooling
Double flow

Renewable systems :

Solar Thermal

Renewable energy production : 60,00 %

GHG emissions

GHG in use : 7,80 KgCO₂/m²/year

Water management

Consumption from water network : 3 481,00 m³

Water Consumption/m2 : 0.88

Water Consumption/Dwelling : 145.04

Indoor Air quality

There´s a whole plumbing system that recovers the vertical garden watering excess. In addition there is a 2500 l greywater recovery tank for watering purposes.

Product

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Product category : Opere di finitura / Partizioni, isolamento

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Product category : Opere di finitura / Elementi esterni - Porte e Finestre

There are several systems introduced in the building in order to provide acoustic comfort to the stakeholders:
- A new floor layer for impact noise absorption.
- A new rockwool insulation layer over the continuous dropped ceilings
- And an acoustic and thermal insulating glazing, for doors and windows, with laminated interior and exterior layers (4+4/ 16 / 5+5 SILENCE)

Product category : HVAC / Ventilazione, Raffrescamento

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Product category : Opere di finitura / Servizi interni

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Product category : HVAC / Illuminazione

Construction and exploitation costs

Renewable energy systems cost : 8,89 €

Total cost of the building : 8 133 653 €

Urban environment

The building is placed in an urban consolidated prime area of Madrid: the Salamanca District. It´s perfectly connected with the public transport network (three underground lines and several bus ones), surrounded by lots of stores and every kind of service, and real close to Madrid's green lung: the "El Retiro" park.