Insulation
We ensure that the insulation has appropriate thickness, so as to reduce the loss of heat in winter and limit the inflow of hot air in summer. By increasing the insulation we have reduced the need for energy to heat the houses in winter and there is less energy required to cool them in the summer months.
Window joinery
We use high-quality window-frames and glazing so as to make optimum use of sunrays. In the winter months this reduces the loss of heat and in the summer months it limits sunshine to enter the interior of the house. This way our passive houses acquire a high level of efficiency and the possibility to control energy consumption.
Tightness
We check their tightness. Traditional buildings have an uncontrolled infiltration of air, a phenomenon that increases the need for energy and creates a feeling or thermic discomfort for their inhabitants. In our passive houses infiltration is almost reduced to zero as the air flow is regulated through mechanical ventilation systems which ensure the highest parameters of hygiene, temperature and air humidity.
Ventilation
We ensure perfect ventilation by using controlled mechanical ventilation systems with heat recovery. These systems have two circuits. One delivers fresh air from outside the building, the other removes ‘used’ air. Both circuits meet in the ventilation device where energy from the used air is recovered and transmitted to the fresh air coming in from the outside.
Energy
We eliminate thermal bridges, which in traditional buildings resemble holes in a bucket of water. If we fill the bucket, the water keeps flowing out. The same happens with energy in buildings that lack tightness and that energy cannot be recovered. Our passive houses have appropriate tightness, thanks to which the energy remains on the inside of the buildings.
Renewable energy sources
We use renewable energy sources in order to protect nature and to provide the energy that is essential to experience the comfort of our passive houses.