June 17, 2025
Windows and Doors for Better Views—and Performance
When it comes to windows and door systems for exterior applications, sustainability is at the forefront in the design of new offerings. Sleek profiles always satisfy the desire for clean lines, but it’s the durable materials, advanced finishes, and exceptional resistance to heat transfer that make these three products stand out.
Gen 4 MultiSlide Glass Wall
NanaWall
This cutting-edge sliding glass wall system blends seamless design with energy-efficient features. With uniform glass lines and barefoot-friendly, ADA-compliant sills, the Gen 4 product family offers matching frames engineered for double- and triple-glazing. Smooth Gothic arch rollers and versatile multidirectional opening options elevate both design and function.
Zenith Integrated Window & Door System
Alpen
Alpen introduces an American-made fiberglass glazing system designed for commercial and residential applications. With lightweight triple- and quad-pane insulated glass and pultruded fiberglass frames with closed-cell foam insulation, the system is as sustainable as it is durable. Spanning a variety of window types—including fixed, casement, awning, double- and single-hung, and horizontal slider—the system meets stringent energy codes and a range of certifications, including ENERGY STAR Most Efficient, Passive House, and Declare Red List–approved.
OptiQ Series Windows
Kawneer
Developed in collaboration with the U.S. Department of Energy, the AA 4325 and AA 5450 Series aluminum windows boast built-in thermal intelligence, surpassing energy codes with impressive heat retention and durability. Exceeding performance and life-cycle standards, they are engineered to withstand harsh weather conditions, resisting rot, warping, and buckling.
Would you like to comment on this article? Send your thoughts to: [email protected]
Latest
Viewpoints
Claire Pijoulat and Odile Hainaut on What to Expect at ICFF 2026
METROPOLIS associate editor and ICFF Editor’s Awards juror checks in with the fair’s brand directors on what they’re most excited about at this year’s edition.
Viewpoints
Milan Design Week: 7 New Sustainable Products and Perspectives
At Salone del Mobile and Fuorisalone, installations and booths showcase lower-impact materials and products—from pollinator baths to recyclable polyester padding.