Woods 93
Low-energy windows
Saving energy is the centre of energetic policy. It means to save energy making, restoring and adding constructions of low energy systems. Building low energy structures, it is possible to save the 90% of the energy compared to a “normal” house, and reduce the CO2 emissions caused by heating systems. A house can lose 20-25% of internal heat through the windows.
There are different standards to make low energy buildings, like PassivHaus in Germany or Minergie in Switzerland, that make the classification of buildings with the annual energy consumption for square meter.
In Italy the average consumption for traditionally-built houses is about 160 kWh/m2a, while a low-energy building can reach the 70 kWh/m2a. This is only a minimum, in fact in Italy we can reach better results according to CasaClima system, that indicates for class B a heating annual consumption lower than 50 kWh/m2a and for class A lower than 30 kWh/m2a.
Windows play an important role in the house construction system, avoiding energy loss and letting sun light come in.
The thermal transmittance is the parameter that permits to measure the correspondence to Casa Clima standards. We contribute to energy saving by designing the high insulation 93 mm model, that can receive 50 mm glass. Il presents a very low thermal trasmittance between 0,8 and 0,9 W/mqK meeting CasaClima A standard that requires thermal trasmittance lower than 1,3 W/mqK.