Windows » KOMMERLING 88 Plus


Rating windows, outside doors, and facades according to this guideline means that these structural elements are ideal for use in a passive house. KÖMMERLING 88plus in the passive house Dr. Feist variant fulfills these conditions with Uf values of 0.79 at the bottom and 0.80 W/(m²K) at the sides and top. With 44 mm thermal insulation glazing and SwispacerV – Ug = 0.7 W/(m²K) – the Uw value is 0.80 W/(m²K).

Exceptional demands for extreme thermal insulation have had a strong influence on the design of window profiles, especially for passive houses. With the latest window technology, modern design and sophisticated construction, diverging requirements have been brought in line with each other.

KÖMMERLING 88plus is a new generation of PVC-U window profiles with sophisticated insulation technology and high construction depths with slim window profiles. Or put in other words: an elegant look, ideal proportions, and efficient solar gains. Never before have such beautiful and perfect windows been built for passive houses. In future therefore, the look of a passive house will be marked by extremely slim profile sight lines – a new era has dawned.


Glass covers about 80 percent of the window area. Therefore, the selection of high-quality glass and glazing package is particularly important in order to maximize the window light and heat conduction properties. The biggest thermal insulation could be reached with a right choice of quality glass package (glazing). So when you are choosing the glazing for a plastic windows it is worth to pay attention to factors which must ensure quality glazing:

  • As low heat transfer outside as possible;                                                 
  • As high day ligh transfer inside as possible;
  • Watertight;
  • Long life and durability.


It is worth to mention that we offer our clients the glass packages with selective glasses. This glass is coated with a thin metallic oxide layer which retains a heat. Selective glass is placed inside of the glass package and it reflects heat back into the room. Window glazing with a new generation of soft selective glass coating spends 3 times less heat to the outside than regular glass package. It is also worth to  notice that selective glass minimize light transfer to the room (80-86%  light entering).






We offer a variety of thicknesses and different functionality 2-and 3-glass windows, which, depending on the client's needs using different types of glass and aluminum or a special warm frame. Standard insulating glass thickness of 40 mm to 44 mm. In the specific customer needs, as well as choosing a passive windows (ENERGY PASSIVE) we offer our customers 50 mm and 56 mm glass packages. With a such triple-glass, argon gas-filled glazing,  we can reach thermal conductivity coefficient up to Ug 0.5 W/(m2K) of glass.
Typically, the windows are glazed with a glass, which are made of glass with a thickness of 4 mm, at large constructions in order to isolate noise, and to keep construction stable we use  glass of 6 mm thick. Also, we offer our clients the matt, sun protected, laminated (secure) glazing.
Seeking optimum quality at an affordable price, experts recommend to make one of the glasses selective. This is a good decision, because selective glass on the inner side of the window  represents a sufficiently high thermal resistance and losing a small amount of the suny light transfer.

*** We guarantee all declared features of the glass, because they are tested in  notified laboratories and certified by the CE marking.



Coloured windows and doors emphasise design features and have a decisive impact on the facade. The wide selection of Inoutic window colours offers practically unlimited design possibilities and underscores a deep understanding of traditional and contemporary architecture. The coloured foils are either applied on one side or on two sides. Client can combine our colours in many different ways and even give your windows a different look on the inside and outside. The high quality and extremely durable laminated foils satisfy highest design and quality demands. Even years later the colours remain just as fresh as they were on the first day. They are also easy to care for and extremely resistant to temperatures and UV. The colours are available for the window profiles, roller shutter boxes, lift and sliding doors and front doors.





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