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.

Disclosed is a flame-retardant insulation bar manufactured by extruding an insulation composition including any one base resin selected from the group consisting of polyamide, polyurethane, polyester, and combinations thereof, a reinforcing agent, a flame retardant, and an additive.

Disclosed is a flame-retardant insulation bar manufactured by extruding an insulation composition including any one base resin selected from the group consisting of polyamide, polyurethane, polyester, and combinations thereof, a reinforcing agent, a flame retardant, and an additive.

A window, door, or facade element includes an outer frame composed of out frame bars and a leaf frame composed of leaf frame bars. One or more of the outer frame bars and/or of the leaf frame bars has/have at least the following features: a base profile, on which two fastening grooves that are open in the same direction are formed for fixing a corresponding fastener of a fitting arrangement, which bridges the intermediate space between the fastening grooves. The two fastening grooves have at least one latch for at least one counterpart latch, which can be attached without tools, of a fitting part arrangement. The fitting arrangement has a functional fitting on a fitting plate and at least one support element for supporting the fitting. The support element is designed for direct or indirect latching in the fastening grooves by means of the counterpart latch.

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 window, door, or facade element includes an outer frame composed of out frame bars and a leaf frame composed of leaf frame bars. One or more of the outer frame bars and/or of the leaf frame bars has/have at least the following features: a base profile, on which two fastening grooves that are open in the same direction are formed for fixing a corresponding fastener of a fitting arrangement, which bridges the intermediate space between the fastening grooves. The two fastening grooves have at least one latch for at least one counterpart latch, which can be attached without tools, of a fitting part arrangement. The fitting arrangement has a functional fitting on a fitting plate and at least one support element for supporting the fitting. The support element is designed for direct or indirect latching in the fastening grooves by means of the counterpart latch.