Cortizo presents the 4600 Plus Lift & Slide system, designed to close large spans while ensuring excellent thermal insulation. With an Uw transmittance value of 0.65 W/m²K, this system stands out as one of the sliding doors with the best thermal performance on the market.

Its 80 mm deep sashes, equipped with a thermal break of 42 mm and a glazing capacity of up to 65 mm, make it a perfect choice for colder climates. In order to enhance insulation, this system incorporates special foams in both the sash and the frame, as well as sliding polyamides that prevent the bimetallic effect, produced when there is a significant temperature difference between the interior and exterior of a building, potentially causing slight bending of the profiles that could end up affecting the proper functioning of the sliding system.

Cortizo’s new series follows the current minimalist trend with perimeter sightlines of only 120 mm, reducing the dimensions of its predecessor, the 4600 HI Lift & Slide, by 20 mm. The goal is to increase the glazed surface and prioritise the entry of natural light into the rooms. For this reason, it has been designed with an interlock of only 50 mm.

The system enables configurations of up to eight sashes, each 3.3 metres long and wide in its four rail option, thus allowing for the closing of spans over 26 metres. The opening option of 90º corner sash without mullion is also available.

To enhance the sliding of the sashes, the 4600 Plus Lift & Slide features a hardware mechanism that slightly elevates them when the handle is operated, thus facilitating the movement of sashes weighing up to 400 kilograms. The opening and closing manoeuvre can be performed through three kinds of handles: the traditional Stylish, (characterised by the elegance and simplicity of its lines), and the Slim Minimalist, a more slender version without a escutcheon whose design achieves a more clean aesthetic.

To facilitate movement for people with reduced mobility, the system includes the option to install a threshold of only 20 mm. It also features hidden track solutions and a drainage grid for water outlet in exposed areas.