For centuries windows were made exclusively from timber — every window was an individually crafted item, created precisely for the installation location and the function. Even though timber windows are now largely manufactured in a mechanised process, craftsmanship still resonates and enhances the window. At the same time, the timber surface scores points with a natural look, a high level of comfort and simple colour design.
However, wood was and is a good material not solely from a design perspective. Properties inherent in the material, such as poor heat conductivity and a certain flexibility, satisfy even high structural demands of a window.
The parts of a timber window exposed to the elements must always be protected accordingly. This can be achieved through the combination with an aluminium surface shell. With its timber/aluminium windows, Internorm offers an alternative to the classic timber window that combines the naturalness of wood on the inside with the resistance and low-maintenance properties of aluminium on the outside.
Façade design involves more than just choosing colours. An aluminium shell on the outside of the frame offers various design options. The combination of aluminium and UPVC has a weather-resistant aluminium shell on the outside and a low-maintenance surface on the inside.
UPVC is a cheap alternative to wood as a window material and has its own advantages. For example, UPVC windows do not suffer much from the impact of weather and maintenance is therefore simple. The same applies to moisture that gathers on the inside of buildings, for example in wet rooms. The flexibility of the material allows many various profile cross-sections and window geometries. And last but not least, the thermal insulation properties of the window can be significantly increased by insulation applied in the cavity of the profile.
As a pioneer in Austria, Internorm recognised the advantages of UPVC. It has been successfully developing and producing UPVC windows since 1963. A further development is the UPVC/aluminium window, with a high-quality outer aluminium shell that can easily be designed in colour. A further advantage: Thanks to the same material on the outside, UPVC/aluminium and timber/aluminium windows can easily be combined in one window.