A window frame system for fixing at least a first panel, includes at least a first window frame structure which includes at least a first window frame profile having at least first and second holders, and at least a first thermally insulating element with sixth and seventh holders. The second holder and the sixth and/or the seventh holder of the first thermally insulating element include at least one internal corner with a radius smaller than 0.5 mm. In this way, the dimensions of the window frame profile may be smaller than in the known window frame profiles. This may be advantageous for the total insulation value of the window frame system and the quantity of material required/used for the window frame profiles. Also disclosed is a thermally insulating element, a method, a window frame structure, a flexible profile, a control system and a sun protection system.

A composite fenestration assembly having one or more sub-assemblies including at least one glazing border constructed of a first material and a rigid overlay constructed of a second material to cover and protect an exposed surface of the glazing border while maintaining narrow sight lines and providing an architecturally pleasing exterior appearance.

A composite fenestration assembly having one or more sub-assemblies including at least one glazing border constructed of a first material and a rigid overlay providing a structural framework for the glazing border while maintaining narrow sight lines and providing an architecturally pleasing exterior appearance.

A window frame system for fixing at least a first panel, includes at least a first window frame structure which includes at least a first window frame profile having at least first and second holders, and at least a first thermally insulating element with sixth and seventh holders. The second holder and the sixth and/or the seventh holder of the first thermally insulating element include at least one internal corner with a radius smaller than 0.5 mm. In this way, the dimensions of the window frame profile may be smaller than in the known window frame profiles. This may be advantageous for the total insulation value of the window frame system and the quantity of material required/used for the window frame profiles. Also disclosed is a thermally insulating element, a method, a window frame structure, a flexible profile, a control system and a sun protection system.

An insulated fenestration system includes a frame comprising a first bracket, the first bracket defining a sealing slot; a pane assembly assembled with the frame, the pane assembly comprising a first pane; a bracket gap defined between the first bracket and the first pane; and a first seal engaging the sealing slot, the first seal extending across the bracket gap and abutting the first pane.

An insulating glass pane has at least two glass sheets, a frame-shaped spacer and a glazing bar insert, as well as a method and a device for their manufacture. The glazing bar insert is mounted inside the spacer between the two glass sheets. The glazing bar insert includes at least one elongated glazing bar profile with a glazing bar end facing the spacer. At least one glazing bar end is formed by a glazing bar profile being formed as hollow profile and is embedded in the plastic-based material of the spacer in such a way that part of the plastic-based material is present in the interior of the hollow profile.