PATENT:EP3187674A1 (granted)




The PLUS system is an exclusive minimal sliding window that features an innovative locomotion track that permits all the rim profiles stay perfectly flush to the construction surrounding materials.

The PLUS system provides the glazed shutters a superior stability by using reinforced vertical and horizontal stainless-steel bearings, and beyond that, it’s the minimalist window frame system with the best performance (on an international level) regarding watertightness, air permeability and wind resistance ratings.

This internationally patented system embodies the evolution of the classic minimalist window, with aesthetic improvements and with added technical advantages, equipping the window with perfect structural stability and improved user-experience features.

PLUS is also equipped with an exclusive anti-freeze system that provides the defrosting of possible ice formations inside the drainage channels (frame gutters), as well the anti-condensation process on the inner surfaces of the glass panels and aluminum profiles, improving the rain-water drainage, even under extreme weather conditions. This system is perfect for use in countries with extreme weather conditions, such as Switzerland, Russia and Canada.

PLUS features a hidden high security lock, a slim and elegant handle equipped with a hidden retractable lock flap, providing the window a streamlined appearance, leading to the limit the minimal essence, allowing also an improved level of security (RC2 rating), combined with an intuitive and simple user experience.

Figure 5: Hidden lock - Closed position
Figure 6: Hidden lock - Open position

After assessing thousands of products around the world, the PLUS system received the distinction “Red Dot Design Award” in the category “Best Product Design”. A creation of outstanding design that the expert committee for the Red Dot Award: Product Design 2017 has recognized with the internationally sought-after seal of quality.

Professor Dr. Peter Zec, founder and CEO of the Red Dot Award: “AMIITO is pursuing the right design strategy. They have recognised that good design and economic success go hand in hand. The award by the critical Red Dot jury documents their high design quality and is indicative of their successful design policy.”

Figure 7: Hidden lock - Recessed flap
Figure 8: Hidden lock - Interlock 22mm optional solution

Most recently, in 2019, PLUS system was also awarded with the German Design Award, where was praised by the jury for its architectural potential that “eliminates the boundary between interior and exterior. Superb.”


Thermal transmission: (calculation module 4.60 x 3.00 meters)
ISO EN 10077-1 + ISO EM 10077-2 (up to)
Ug = 0.7 W/(m²K) : Uw = 1.0 W/(m²K)

Water tightness: E1050
ISO EN 12208 + ISO EN 1027

Air permeability: Class 4 (600 Pa or 110Km/h)
ISO EN 12207 + ISO EN 1026

Wind resistance: Class C5 (2000 Pa or 200 Km/h)
ISO EN 12210 + ISO EN 12211

Impact resistance: Class 5 (In 6 possible classes)
ISO EN 12600 + ISO EN 1630

Acoustic insulation: Rw: 41dB (with glass Rw: 45dB)
ISO EN 10140 + ISO EN 717

Anti-burglary rating: RC2:(WK2)
ISO EN 1627