Aluminum.
Slim lines, big glass,
high performance.
The Sleek Strength Of Aluminum Frames
Aluminum windows and doors are incredibly flexible in application and offer some of the slimmest profiles available in a high performance window or door thanks to their structural strength.
Our aluminum line is also available as curtain wall.
NK uses advanced thermal breaks to optimize energy savings, create true comfort, and eliminate condensation inside the home. The frames can be finished in a wide array of powder-coated or anodized finishes to complement any design. Our aluminum line is also available as curtain wall.
We believe in being
Beautiful & Simple
Features
X90 Series
The X90 Series is a modern aluminum window system with advanced thermal insulation, certified by the Passive House Institute (PHI) for passive construction standards U-Factor 0.14 BTU/ft²·°F·h and SHGC OF 0.15. Designed for high-performance applications globally, it offers three thermal variants:
Key features include a 2.17-inch high chamber thermal spacer, two central gasket options, and slim profiles with 0.59 inches glazing beads. The X90 Series accommodates window sashes up to 9.8 feet high and 396.83 pounds in weight, supports concealed drainage, and offers multiple frame and profile configurations. sun protection options (roller shutters, blinds), and a wide color range, including RAL, wood-like, stone-effect, and bi-color finishes.
X75 Series
The X75 Series is a modern aluminum system designed for windows and doors requiring excellent thermal insulation, featuring 2.95-inch deep sections for building frames. With a U-factor of 0.14 BTU/ft²·°F·h and a Solar Heat Gain Coefficient (SHGC) of 0.15, it delivers exceptional energy efficiency. Suitable for public buildings, single-family homes, and multi-unit residences, the system includes a wide range of profiles for designing functional windows, doors, and display units with high thermal performance.
Key features include:
- Advanced Insulation: Incorporates new insulation materials with a central and additional thermal gasket, enhancing air tightness, water-tightness, and aesthetic appeal.
- Customizable Profiles: Offers various finish options, including renovation profiles and corner-to-corner combinations at 90 degrees for impressive glass surfaces.
- System Variants: Includes options like Genesis OUT (outward-opening windows) and Genesis SU (hidden sash), along with the possibility of panel doors based on the GN75 door system.
- Insect Protection: Compatible with Flyscreen and Insect systems.
- Color Options: Available in the RAL palette, structural, wood-like finishes, stone-effect, bi-color, and anodized finishes.
The X75 Series sets a new standard in thermal performance, ergonomic functionality, and modern aesthetics, making it ideal for customizable, high-performance architectural solutions
XEco Series
The Xeco Series is designed for creating windows and doors without thermal insulation and is compatible with all other Xeco systems, featuring shared glazing strips, gaskets, corner shapes, and hardware. This system is ideal for interior and exterior architectural elements without thermal insulation, such as windows, doors, and partition wall segments, for use in public, industrial, and private residential buildings.
Key features include:
- Integration Flexibility: Xeco doors can be integrated into partition walls made of Xeco panels or other panel designs.
- Design Options: Allows for sliding doors, swinging doors, wall joins at any angle, and reinforcement of completed or installed elements.
- Profile Bending: Profiles can be bent to custom specifications; detailed technical information is available online.
- Color Range: Offers a wide range of colors, including the RAL palette, textured colors, wood-like Wood Colour Effect, stone-like Loft View, anodized colors, and bi-color options.
The Xeco Series provides versatile, customizable solutions for architectural designs in public, commercial, and private residential spaces.
Xi Series
The XI Series is a high-performance system for windows,
doors, and shop windows, featuring a U-Factor of 0.22 BTU/ft²·°F·h and SHGC of 0.15.
Designed with advanced thermal inserts, it provides excellent insulation and supports a variety of styles for both residential and public buildings, with facade compatibility.
Key features include customizable profiles, diverse glazing options (single, double, acoustic, and anti-burglary), flexible hardware compatibility, and both traditional and hidden drainage.
The XI Series also offers a wide color range and supports Flyscreen and Insect systems, making it ideal for modern architectural solutions.
