Designed with production efficiency in mind, the A 78 used the same reinforcement in sash, frame and inverter, simplifying large-scale manufacturing and reducing lead times. “It’s a competitive solution for high-volume projects, combining insulation performance, modern design and fast manufacturing,” noted Iván Ferro, Commercial Director of Cortizo uPVC at the time of the launch.

The series also featured a central gasket to improve airtightness and lightweight seals in the frame and sashes for smoother operation. Architecturally, it offered 100% straight lines, a reduced central section of just 110 mm, and a slim visible perimeter of 98 mm to maximise natural light.

Available as a window, balcony door or hinged door, the A 78 accommodated sashes up to 1,400 mm wide, 2,500 mm high and 130 kg in weight. In AEV performance testing, it achieved Class 4 air permeability, E1800 water tightness and C5 wind resistance—confirming its suitability for demanding residential and commercial applications.

With the launch of the A 78 uPVC hinged series, Cortizo strengthened its position in the European fenestration market, offering a product that blends high thermal performance, refined aesthetics and production efficiency for large-scale developments.