Rationel Banner


If energy efficiency and exceptional architectural elegance are on your must-have list, Aura and Auraplus may be the windows and doors for you.

Maximising natural daylight, their sleek aesthetic and minimalist design coupled with superb optical quality are ideal for extensive feature glazing areas.  A perfect fit for the modern, bright living environment.

Due to their high performance triple glazing, achieving the Passive House standard is within easy reach.  Both Aura and Aura plus can reduce both your CO2 emissions and the energy bills of your home dramatically, a great investment for the future.

Offering the warmth and beauty of natural wood, the solid timber construction of the Aura range is the perfect choice for those seeking a timber window with all the benefits of modern security, energy efficiency and flexibility.  For those preferring a composite construction, the Auraplus alu-clad features all the benefits of a timber windows internally, with the enhanced durability of an aluminium window externally.  For those seeking a zero maintenance window that stands up to the harshest of weather conditions, the extra protection of aluminium cladding is the ideal option.

With a wide choice of different styles, glazing options and colours available in both the Aura and Auraplus ranges, you can create a customised window to complement your project perfectly.




Rationel Aura windows are ‘energy-contributing’, offering the same excellent energy performance as our Auraplus, but are constructed entirely form timber.  This gives you the option of achieving a beautiful natural look, with the contemporary, clean design of modern buildings. 

Due to Aura’s ability to benefit from heat through solar gain, your home can benefit from free heat, an unrivalled energy source, providing you and your family with a comfortable and healthy indoor climate.

Aura windows are suitable for Passiv Haus buildings if desired and security ironmongery comes as standard.



Rationel Auraplus offer a stylish architectural appearance thanks to its elegant, slim lines, which also allow you to maximise the flow of natural light into your space. 

Auraplus combines the beauty of natural wood internally with the durability and easy maintenance of aluminium externally, making this timber alu-clad window the ideal choice for those seeking the benefits of both materials. 

Perfect for both new houses and replacement of existing windows, Auraplus also meets Passiv Haus standards and are provided with security ironmongery for your peace of mind.