Have you ever come across the term “fix”? This term is well-known in the industry, but people outside might not be familiar with it. We’ll explain it using the example of windows from one of our regular clients, whom we recently visited.


The name “fix” refers to the structural elements of a window that do not open. They are typically used as a complement to standard opening windows to provide even lighting and an aesthetically pleasing facade for the building. Fix windows can be made from various materials (such as wood, aluminum, or PVC) and are usually installed next to opening windows, whether they are single, double, or triple. Their primary purpose is to aesthetically enhance the building’s architecture and ensure a uniform external appearance.



These windows are not only decorative elements but also a sign of refined taste and professionalism in space design. Their sizes can vary; today, however, we will show you some in slightly larger dimensions.


Panoramic windows have become extremely popular not only because they effectively illuminate interiors but also because they make the structure of the house more interesting. The potential of these windows can be utilized in many ways. They provide excellent lighting for any room in which they are installed. Additionally, they allow for the efficient use of natural solar energy to heat the interiors.


Below, we present you one of the projects where Mr. Adam used panoramic fix windows in his home. His windows were made in the MB Slimline system with a low profile. Thanks to this solution, you can comfortably sit on the sofa in the living room and admire your garden while enjoying a lot of sunlight. But this solution can be used not only to admire the outside world. As we show in the photos below, Mr. Adam decided to place several fix windows, giving him a beautiful view of the garage directly from the living room or the elegant entrance to the house.



Advantages of Panoramic Windows:


  • More Natural Light: Panoramic windows significantly increase the amount of natural light entering the interior, creating a more pleasant atmosphere and potentially improving well-being.


  • Better Views: Large panes allow you to enjoy beautiful landscapes without leaving your home, ideal for homes with views of gardens, forests, or mountains.


  • Spacious Effect: Interiors appear larger and more spacious, which can be especially advantageous in smaller rooms.


  • Modern Design: These types of windows give buildings a modern and elegant look, increasing their visual appeal and market value.



Disadvantages of Panoramic Windows:


  • Higher Heating Costs: Due to larger panes, there can be greater heat loss, resulting in higher heating bills. It is important for windows to have a low heat transfer coefficient (U) and to be properly oriented relative to the cardinal directions.


  • Risk of Overheating: In the summer, especially if the windows face south, rooms can overheat, which can be minimized with blinds, shades, or awnings.


  • High Costs: Large windows are more expensive in terms of both purchase and installation, and their maintenance, including cleaning, can also be costly.


  • Maintenance Challenges: Cleaning large windows, especially on higher floors, can be cumbersome and may require specialized equipment or professional services.


On the one hand, panoramic windows can lose heat, but they can also retain it. So how do you choose windows that are energy-efficient?



Key Indicators


When choosing panoramic windows, the key parameter to pay attention to is thermal insulation. Well-insulated windows contribute to heat savings and optimal use of solar energy, minimizing heat loss to the outside.


  • Thermal Insulation of Panoramic Windows: The thermal transmittance (Uw) of panoramic windows is crucial. The lower the Uw value, the better the insulation. Modern energy-efficient windows have a Uw of around 1 W/m²K, while passive windows can achieve even below 0.8 W/m²K.


  • Profile and Glass: The thermal insulation of the window profile (Uf) is also important. A profile with a Uf not exceeding 1.1 W/m²K significantly enhances thermal efficiency. Equally important is the thermal transmittance of the glass (Ug). Optimal glass, filled with noble gas, should have a Ug of around 0.7 W/m²K.


  • Installation: Finally, proper and tight installation of panoramic windows within the wall insulation layer ensures maximum thermal efficiency.


It’s worth remembering that appropriate thermal insulation parameters of panoramic windows not only affect the comfort of your homes but can also significantly reduce heating costs.