The passive solar home: an ecological habitat
A passive solar home is designed to leverage the benefits of solar radiation in order to save the energy for heating. Thanks to its design, quality components and good ventilation, the concept of the architecture of the house is to use natural resources to benefit from energy.
- The concept
- The architecture
- The orientation of rooms and windows
- Some tips
The passive solar house or passive house is particularly healthy because its basic principles are:
- Take climate
- To choose materials that will capture the solar energy and redistribute it.
Its shape is compact to reduce the heat exchange surface, the facade facing the sun and its openings are placed in the facade. Its shell is insulated with care to maintain heat exchange with the outside, it must be completely sealed to stop the air inlet or untimely exits.
Architecture is one of the aspects of the solar house. Its good insulation is the first base because the goal is to keep inside the house cool in summer and warm in winter.
It is therefore a practical ecological and profitable, the contribution of natural light plays an important role in the construction of the solar house. Care should therefore be part orientation as solar architecture will influence:
- The number, the size and orientation of windows
- The arrangement of rooms
- And especially the choice of materials (such as concrete, for example, which has a high thermal mass inner)
The orientation of rooms and windows
It is advisable to position the living areas to the south (living room, dining room) by cons in terms of the room , it is more oriented towards the east or the west (there solar radiation morning or evening).
And other parts say “fresh” as the guard room, are located north of the habitat.
The orientation of windows and patio doors are fundamental. You will need:
- Distribute the surfaces of windows and doors optimally
- Opt for windows high thermal efficiency
To take advantage of the natural and solar gain in the winter light, there should be a total surface area equivalent to windows 20% of the living area. This is a good compromise for thermal comfort all year round.
The distribution of windows on all 4 sides of the house is as follows:
20% on west-facing
Avoid large windows facing is full or due west, they can cause overheating summer
Coating the inner wall of windows with low emissivity films
The total area of glazing shall not exceed 25% of the floor surface to prevent the discomfort area in winter as in summer.
To prevent overheating and manage solar heat gain in summer, it is advisable to place awnings and sunshades to the balcony and the front.