Year after year, the increases in the invoice of the home was converted into a routine that makes us question the way we live and encourages each time to a greater number of people to bet on passive houses. The rise of 6% of the gas, over the past year, and 7.3% of the light last December, has led to many families value the acquisition of dwellings constructed in accordance with principles of liabilities, in terms of insulation, sealing, and ventilation, betting on the lowest energy consumption possible.
In this type of construction is key to both the orientation and the material of the windows, which are attempting to locate a way to make the most of the light and the solar radiation, avoiding excessive reliance on external energy sources. Bringing together for a sustainable construction is typically used recycled materials or natural, which, in turn, have high thermal insulation capacity and long service life. For their construction are used, in addition, procedures for low environmental impact.
Energy consumption is practically zero is one of the goals in which they acquire new homes. They are referred to as Home Passive because they are built according to the principles of the standard German Passivhaus, where they are considered as features such as insulation, air-tightness, ventilation, orientation, or the use of the solar radiation. The main pillar is to opt for a lower energy consumption without sacrificing comfort possible.
These measures can increase the savings in heating and cooling between 80 or 90% and that is not necessary an additional energy source to cover a large part of the energy needs of any home. Then, we leave some of the main features that make these houses passive and that, even in standard housing, you will be able to help you to reduce the cost of energy.
Thermal insulation optimal
Our house does not have proper insulation can raise a lot of our invoice at the end of the month. With a poorly insulated, the energy consumption can grow up to 30%. With a good thermal insulation would reduce the heat loss in the winter and amentaríamos the high temperatures in the summer, which means less spending of light in air conditioning devices.
Therefore, it is essential to count with materials and installation techniques that reduce the heat transfer to other items or unwanted spaces.
A problem arises when the buildings are not performed in the correct way and cause problems such as currents of air involuntary. The air, cold as hot, sneaks into our house through windows, gaps or doors, by construction deficient, you can do increase our energy expenditure substantially since this energy is used is to lose your time for these boards.
Windows correctly oriented
And of good quality. Windows and doors can be the main reason of poor energy efficiency in a home that opens a pathway by which the air can easily access the home. Windows of poor quality or with a bad orientation may represent a 25 or 30 per cent more spending heating in a house.
It is also the conditioning of the windows with respect to the solar path, the number of glass and its thickness, the materials that make up…
Thermal bridges are places of the envelope of a house where more easily spread the heat or the cold made other rooms. Can be caused by issues geometric, by differences in the patterns of conductivity of the materials used for their construction or for differences in the thickness of the materials. By this count with materials that are waterproof and high quality can promote the isolation and improving energy efficiency.
Mechanical ventilation, recover the heat
Take advantage of the heat given off by appliances and the people could help us in this energy savings. And is that the energy that they use, sometimes is returned into heat, which could increase our consumption. This could be exploited by a ventilation system to heat the air clean incoming before it can expel the air inside, there are studies that demonstrate how the demand for heating or cooling, in these cases, is reduced by up to 15 kWh.
How your home can save it for you