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How to create a secondary window and what can you save it for?
In addition to window films, TNO has also researched secondary windows. You can easily make them yourself with materials you can buy at a hardware store. “It will cost you about an hour per window,” says Carton. “You have to measure, saw and screw.”
You then make a frame between which you apply window film. You can do this with two layers of insulating air. “Although one sheet of paper is also enough,” says Carton. It is also important that To pay attention to the distance To the window – the smaller the better. Ventilation is also required.
According to Milieu Centraal, you can save 13 euros per square meter per year with this front window. This amount is between 500 and 800 euros per year, according to the TNO calculation. Cartoon: “I recently went to look at Praxis and Gamma. The chips have been selling out for weeks, while they were barely selling out last year.”
In this video, TNO’s Erik Carton explains how to create a secondary window.
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