![neu_denken_1920x1080_2](https://www.burckhardts.de/wp-content/uploads/2021/08/neu_denken_1920x1080_2.jpg)
Think afresh. Do it right.
The fibreglass profile
> Uf-value 0,9 W/m²K · Uw-value below 0,8 W/m²K possible
> frame exclusively made of highly insulating composite material
> no condensation up to -10° C outside, +20° C inside
> mold-free, even in swimming pools
> only 1/3 of the extension compared to aluminium
Sealing levels in the labyrinth (middle profile)
> 2-4 brush sealing
> 2 EPDM stopper seal
Excellent test values
> multitude of tests and certificates of accepted institutes
Excellent runnability
> rollers and surface made of stainless steel
> big wheels with two ball bearings each make an easy handling of heavy wings possible
Perfect drainage system
> adjusted to a variety of structural conditions
> easy and safe drainage thanks to the special geometry of the fibreglass profile
> special sealing technology in the joint area of the frame
Quality and service
> professional installation through experienced installation teams
> regional exclusive partners
> consultation of architect and developers through facade experts
> worldwide installation experience
> ISO 9001-certified
![neu_denken_1920x980](https://www.burckhardts.de/wp-content/uploads/2021/08/neu_denken_1920x980.jpg)