Sant Fost, Barcelona
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1. Most Important Goals
- Conduct a home energy efficient
- Conduct a home high thermal capacity of self-regulation in cold weather.
2. Architectural Solution
The house is solved in three plants, and has a tripartite structure. The central area is a covered patio on two levels providing vertical communication between all the rooms of the house, and allow to cool naturally in summer. The west is the day area, and the eastern houses the bedrooms, on two levels.
The property is semientrerrada, and runs, in a phased manner over the slope of the hill on which it is located. This tiered structure allows to have roof gardens, gardens as an integrated housing.
3. Sustainable Analysis
1. Resource Optimization
1.1. Natural Resources. They take full advantage of resources such as the sun (to heat the house), the wind, water and earth (to cool the housing), rain water (for watering the garden and flushing toilets), .... . On the other hand, has installed water saving devices on taps, showers and flush toilets.
1.2. Resources made. The materials used are maximized, thus avoiding possible waste through proper project and effective management (concrete, cement blocks, wood, woodwork, plywood, paint, ...). On the other hand, proper housing design, based on load-bearing walls, can only be built without assistive devices (such as scaffolds, cranes, etc ...).
1.3. Resources recovered, reused and recycled.
The vast majority of housing materials may be recoverable (cover, woodwork, glass, wood beams, girders, walkways, stairs, cabinets, wood coatings, sunscreens, health ...).
On the other hand, has promoted the use of recycled and recyclable materials such as polypropylene water pipes, drain pipes of polyethylene, OSB plywood boards for interior doors, plywood panels for coatings, recycled glass countertop the kitchen, floors, stairs and windows, etc ...
Finally, it has made extensive use of recovered materials (waste) and reused materials, such as wooden beams, furniture, flooring and accessories.
2. Decreased energy consumption
The house is built with minimal energy consumption. The vast majority of the materials used were manufactured using a minimal amount of energy. On the other hand, housing has been built with little supporting resources, and with very little labor.
Due to its characteristics bioclimate policies, the home has a very low energy consumption standard. The house is heated by greenhouse gases and solar radiant floor heating. The hot water is generated through solar thermal captors. The house is cooled by geothermal architectural systems, mechanical systems and requires no packaging, so no energy to cool.
The vast majority of materials used can be recovered easily. On the other hand, housing is projected to have a high durability, as all components are easily serviceable housing.
3. Using alternative energy sources
The energy used is of two types: solar thermal (solar captors for the system of floor heating and ACS, and evaporation of water to air cooling), and geothermal energy (air refresh system taking advantage of low temperatures existing underground , in the galleries below the floor slab of the house).
4. Reduced waste and emissions
Housing does not generate any emissions and does not generate any waste, except organic. On the other hand, during the construction of the house just waste were generated.
5. Improving health and wellbeing
All materials used are environmentally friendly and healthy and have no emissions that can affect human health. Similarly, the house is naturally ventilated, and maximizes natural lighting (home automation system ensures that no artificial lighting can be used as long as natural lighting), which creates a healthy environment and provides the best quality of life possible to the occupants.
6. Reduced price of the building and maintenance
The house has been designed rationally, and most of its components are industrialized, eliminating redundant items, unnecessary or gratuitous, allowing construction to a greatly reduced price, despite the ecological equipment includes. Similarly, housing is almost maintenance: Regular cleaning and treatment of wood biennial vegetable oils.
4. Eco-friendly materials
1. Foundations and structure.
Double-leaf walls and insulation. The inner leaf wall load is based on wood-cement blocks (Durisols) of 20 cm. thick, and large format. These blocks are filled with sand, or isolation, depending on their housing situation. The outer leaf is built with perforated bricks of 7 cm. Inside there is a double sheet of hemp insulation layer of 6 cm. and a ventilated air space of 3 cm.
2. Exterior finishes
Silicate paint. Tongue and groove boards and battens, Ipe wood, heat treated and dyed with vegetable oils.
3. Interior finishes
Paintings vegetables. Flooring tile porcelain tile. Double doors plywood board, beech plywood, and treated with vegetable oils.
Roof garden, with an average thickness of 30 cm. of land. Pitched roof sandwich panel based consists of: top Viroc board (wood chips and cement) of 13 mm, bottom board of birch plywood 13 mm, and internal insulation hemp fiber 10 cm. thick. Based coating with a layer of rubber, and a coating of zinc sheet.
Polypropylene water pipes. Polyethylene drainage pipes. Energy-efficient appliances. Silestone kitchen countertops antibacterial. Walls and floors of high performance glass (anti-scratch, slip, easy cleaning, special screen ...). Iroko wood carpentry treated with vegetable oils. Cotton canvas awnings. Shading Ipe hardwood, treated with vegetable oils. All woods used have a certificate of origin with selective logging and ecological treatment (FSC).
5. Highlights Innovations
- Use of wood-cement blocks, to perform load-bearing walls of the building. These blocks are lighter than conventional concrete blocks, so its size can be increased. They are easier to handle (can be sawn), and have a greater degree of thermal insulation and soundproofing. On the other hand, are unalterable and more environmentally friendly because they are composed of wood chips and cement. The wood fibers blocks provide greater resistance to flexion and compression, and reduce their vulnerability. Finally, it is especially noteworthy that wood chips have been used in its construction, which makes them a model example in the industrial use of waste.
- LED lighting, very low energy consumption by over 30% of the luminaries of the house.
- Wireless home automation system for comprehensive control of all devices in the home.