SYSTEM IMPROVEMENT FOR BUILDING EXPANSION: THE CASE OF ENRIC GRANADOS 69, BARCELONA
Last modified by the author on 21/06/2016 - 12:33
- Building Type : Collective housing < 50m
- Construction Year : 2015
- Delivery year : 2016
- Address 1 - street : 08008 BARCELONA, España
- Climate zone : [Csb] Coastal Mediterranean - Mild with cool, dry summer.
- Net Floor Area : 161 m2
- Construction/refurbishment cost : 279 205 €
- Number of Dwelling : 2 Dwelling
- Cost/m2 : 1734.19 €/m2
Primary energy need
(Calculation method : )
A new architectural system, management and financing, has been developed by La Casa por el Tejado, for the improvement of existing buildings and their completion. It is based on the use of vacant buildability that some buildings have. Enric Granados 69, one of several projects, involves the rehabilitation of a centuries-old estate (ground floor and three upper) and a freeboard with industrialized construction (floors 4 and attic). Enlargement, made with materials that store CO2 and qualified A in energy certification, provides economic resources to improve the existing building.
See more details about this projecthttp://www.lacasaporeltejado.eu/es/blog/enric-granados-69-categoria-a/
3rd part certified
La Casa por el Tejadohttp://www.lacasaporeltejado.eu
Development and sale of the project
AT-3 Oller Peñahttp://www.at3.cat
Recruitment, coordination and construction management
Environmental and counseling facilities
Design and calculation of facilities
Manufacture and assembly of structures and wooden fences
Vegas del Valles
Owner approach of sustainability
La Casa Por el Tejado has created its own quality tool called Senda. Senda is a help system and evaluation of environmental quality of the projects of La Casa Por el Tejado, ie for attics that the company is developing in Barcelona, Madrid, Pamplona, Bilbao and other medium and large cities in Spain. Created by Societat Orgànica, Senda follows the philosophy of a life-cycle assessment simplified vision which allows to consider buildings under the same system of analysis and decision-making, from the extraction of raw materials and its manufacture, to the limit of its durability, deconstruction, reuse or recycling of resources invested. Besides taking into account the entire life cycle, the system assists and performs an assessment of various environmental impacts like: changes in biodiversity, consumption of non-renewable energy, deterioration of drinking water, impacts caused by materials and generation of pollutants.
The multifamily building were the freeboard is performed finds itself between party walls and is aligned to the boundary of a plot of approximately 164 m2. It has a ground floor where there is a shop, and three floors, with one dwelling per floor. The two new housings, 161 m2 of usable area, are in the same plane of the existing facade on the street Enric Granados, in order to respect the composition. In the rear, however, the 4th floor is adapted to the current built depth, but on the 5th floor 1.70 m is removed creating a terrace overlooking the interior of the block . To facilitate the entry of natural light in the rooms and promote cross ventilation, the inner courtyard of the estate extends to the new cover, extending its diameter in the freeboarded plants. An additional partially walkable courtyard is created. These interior spaces are closed by some woodworks. The envelope of the new homes on the Enric Granados façade consists of a ventilated façade expanded metal panels of transparent red. A solution that seeks dialogue with the existing facade from the point of view of contemporary design. On the side facing the interior of the block, it has opted for the construction of a louvered type enclosure gallery of cedarwood. As a differentiator, on the 5th floor which has created a new terrace, the connection to the interior of the house is done through a sliding window aluminum profile with minimum thermal break. In the new flat roof, exclusively for maintenance, telecommunication facilities and chimneys as well as solar collectors for hot water production are placed. The rest of timber are pine reddish.
If you had to do it again?
Building on an existing building requires a lot of coordination and agreement among all actors involved in the process from the inhabitants of the building to work technicians, not to mention public administration. This process requires a great experience and management capacity by the project developer team.
Building users opinion
Of the two new floors, the attic is inhabited, but not the lower floor. The owner of the penthouse said "pleased to have found a home of this type, of which there are no more in the city, similar to a house because it has a terrace, sun, views, but with the wealth of being part of a historic building in a central urban area, with all amenities within walking distance."
- 16,20 kWhpe/m2.year
- 82,90 kWhpe/m2.year
- 6,20 kWhfe/m2.year
- 6,20 kWhpe/m2.year
- 0,20 W.m-2.K-1
Real final energy consumption
- Heat pump
- Heat pump
- Solar Thermal
- Reversible heat pump
- Natural ventilation
- Single flow
- Solar Thermal
- Heat pump
- 74,00 %
- 4,00 KgCO2/m2/year
- 100,00 year(s)
- 116,00 m3
Plasterboard with noncombustible fire behavior A1, dimensions 1250x2600x18
OK. It has solved the fire insulation issue with a dry solution and absolute control of the necessary thickness.
Steel-wood composite beam with epoxy binding resins. Protects steel wood fire heat and steel provides greater flexural strength. NovadomusHábitat
OK. It has been possible to work with a minimum thickness of forged increasing flexural strength. This is particularly interesting when the limit height between floors is very restrictive.
aluminum sliding window Technal Lumeal.
"Lumeal XXL is the new slide Technal for glazed spaces of dimensions out of the ordinary. The bearing system allows sheets of up to 600 kg weight that slide smoothly and maximum precision. Its central reinforced profile ensures wind resistance glazing allowing the realization of remarkable heights.
At the vision level, the top profile and side can hide in work, while the central core and the lower profile sheet small size, offer a very slim and minimalist image. Lumeal XXL is an industrial product easy to manufacture by professionals enclosure, with services tailored to compliance with the CTE."
OK. It has allowed to perform a carpentry with minimum framework thicknesses while maintaining low thermal conductivity and low leakage. This is sought to give great visual breadth to the environments in a narrow estate.
Construction and exploitation costs
- 1 375,00 €
- 18,00 €
- 4 200 €
- 402 027 €
The building is located in the Eixample district in Barcelona, perfectly connected by public transport, surrounded by trade and on the pedestrian street Enric Granados.
Land plot area
Building Environmental Quality
- comfort (visual, olfactive, thermal)
- energy efficiency
- renewable energies
- building end of life management
- integration in the land
- building process
- products and materials