The reduced thermal conduction capacity of insulbar LI is achieved by means of a special manufacturing process in which glass fibre-reinforced polyamide is foamed. Compared with standard profiles made from solid polyamide, the lambda value of insulbar LI can – in optimum products – be reduced from 0.3 W/mK to 0.21 W/mK*. This value makes it possible to achieve smaller installation depths while maintaining the same Uf value, or to optimise the Uf while keeping the installation depth the same.
* Product optimumExisting window systems can easily be thermally improved through a switch to insulbar LI and/or be offered in additional variants with different Uf values – without further system or process changes and without any difference in visual appearance or quality. Depending on the original system, a switch to insulbar LI makes it possible to reduce the Uf values by around 0.1 W/m2K.
For more information on the insulbar LI profile, see our brochure.