The outstanding insulation characteristics of the Ideal 5000 profile provide first class living comfort. IDEAL 5000® is the consequent development of the IDEAL 4000® system on the basis of a middle sealing. With specially developed reinforcements the system IDEAL 5000® in combination with special glazing beads the system is passive-house-standard. The extraordinary construction creates a very slim outside view of the airfoil that highlights the window and makes it particularly attractive to those who like to see less frame and more glazing.