Passive windows are those windows that fulfill their function and at the same time limit energy losses . Thanks to its high performance, especially with low transmittance. Thus maintaining comfort inside passive homes .

Precisely because of these high features, a passive can have large windows without sacrificing design. But at the same time fulfilling the functions of any window.

• Above all, naturally illuminate a space in the house. Because there is nothing like natural light to enrich a room or room.
• Allow views of the house to the outside. Emphasize the interior-exterior relationship of the house. Either towards an interior patio, the sea in his case or garden or mountain areas. A home must be integrated with its surroundings and windows are essential for this.
• Ventilate . Although in a passive house it is the heat recuperator that ventilates mechanically and efficiently continuously. There will always be times when air circulation is required. Or even at night to perform what is known as fre cooling. Which is a method used in passive to cool a space through the outside air.
• Design. The aesthetic component of the home and the contrast between the blind and the transparent. The closed envelope and the gaps. Thus configuring the aesthetics of the house.

For a home to be considered passive or of almost zero consumption, it must be very well built. And thus achieve a very low energy demand and therefore consumption, to maintain comfort conditions inside.

Well, in the case of passive or high-performance windows, the same thing happens. It must be manufactured with the best raw materials and solutions in order to offer great thermal performance.

In this way a passive window works with maximum insulation. Both in the frame and in the glass. A low transmittance ensures that outside temperature does not enter the building, maintaining optimal conditions inside.

On the other hand , they will guarantee the airtightness in the meeting between the window and the rest of the envelope . And this is above all thanks to its placement, also in a special and exhaustive way. This ensures that no air escapes between the frame and the wall. Goodbye to those annoying drafts. That cannot be allowed in a passive .

But these concepts are not ambiguous, but are measured, quantified. Because it is the only way to ensure compliance. This is how terms such as thermal transmittance or solar factor appear. These values ​​are calculated in PHPP to obtain the behavior of the house. Thus analyzing the energy demand based on how it has been designed.

And to get these values, it will depend on how that window has been configured and manufactured. If the glasses are double or triple. If it carries argon gas inside, which is more insulating. Of course, the material of the frame, being the PVC passive windows or the wooden passive windows the ones that obtain the best transmittance values.

In the cases of PVC profiles, it is important to analyze the number of chambers in the profile. And it is that it will be necessary to make sure that there are at least 5 but 6 cameras. Elements such as the double or triple joint or the interlayer material have less incidence but show the degree of demand in this type of windows.

In addition to being manufactured with high quality so that they have the desired thermal behavior, it is essential to control their placement, as is the case with passive doors . A very good window, poorly placed, is useless. Or almost nothing.

That’s how important its correct placement is. Because it is precisely the point between two materials or two components that is the weakest in an envelope. And that is why you have to make sure that it is installed perfectly on the wall.

For this, it is very important to have a workforce specialized in this type of work. The passive Tradesperson certificate guarantees that this type of work is carried out by trained professionals. And aware of the importance that this has.

Regarding the placement of passive windows, it is essential to do it by means of pre-frames and between these and the window, ensure its correct sealing using special foams and tapes. This will ensure airtightness.

In short, these are the key aspects of passive windows in Passive houses

And for all this we can say that passive windows, despite having a higher price, are the best on the market. With the best characteristics and therefore behavior afterwards. Ensuring full comfort inside the home.

And this is one of the most recurring concerns among our customers. If a home with many windows may be less secure.

As a general rule, a passive window, due to its composition, is much safer than a traditional one. But in any case, these certified passive windows can be retrofitted with safety glass. Or even with more fixings to the pre-frame or between the sash and the frame.

Thus trying to avoid unfortunate, accidental or provoked events. And guaranteeing the tranquility of the owners of the passive house.