EU-GUGLE Site Sestao
Sestao is a municipality located at 11 km from Bilbao, on the left bank of the River, with a strong postindustrial character. It has an area of 3.5 km2 where only 0.9 km2 are devoted to residential use and the rest is used for industrial purposes.
The demonstration district is located in the lower area of Sestao and it is the most affected by the deindustrialization process. Nowadays the unemployment rate is about 30%. There is a mixture of local and immigrant population with limited economic resources and a very low academic level.
The buildings are in an urban area which is particularly degraded. The building stock consists of residential buildings, most of which have private owners, but there are a few public buildings. Most of them were build 80-100 years ago on wood and long back fund structure, resulting in poorly ventilated interior rooms, and without natural light distributions. The renovation area covers 24,509 m2, 258 dwellings and 1,300 inhabitants.
The foreseen measures are:
- Rehabilitation resulting in reduction of waste, cost and CO2 emissions in comparison with demolition and new construction
- Houses typologies with natural cross ventilation and North-South orientation. Planned rooms with natural light and airy spaces
- Sustainable materials: wood, plasterboard prefabricated panels, etc.
- Biomass centralized boilers for the production of hot water and heating (20%) and renewable thermal energy through solar panels for hot water and space heating (80%)
- Solar protection in hollows and facade
- Thermal isolation for the outside to avoid thermal bridge
- Reduction of envelope thermal transmittance
- Windows replacement
- Energy certification improvement to the minimum requirement (D)
- Improvement of the houses’ ventilation condition
- Lifts with excess energy recovery system
- Programmable thermostats for heating systems.
- Automatic ignition/shutdown systems in the common areas of the building. Low consumption lamps or fluorescent tubes for long periods of operation (> 3 h)
- Use of bicycles and providing space in the buildings for them.