Most Innovative Patio, Multi-Slide, Multi-Panel Door 2024
Alpen High Performance Products Zenith Sliding Glass Door Series (Grandline and Narrowline)
December 9, 2024
The Product
The Zenith Sliding Glass Door Series is bigger, stronger and more functional than previous iterations. This series includes designs that maximize glass areas for better sight lines that open indoor living spaces to the outdoors, durable, all-fiberglass frames coated with Alpen's newly launched paint system featuring 14 standard paint colors, including split finishes and advanced roller assemblies featuring polymer wheels, precision bearings and a single-bogie carriage for balanced load distribution.
The Zenith Sliding Glass Door Series also has a raised sliding sill track to ensure longer-lasting roll, warp-resistant fiberglass interlocks and an 8-foot tall model.
What the judges say
- Their design is sleek and they have great color options.
- Matching home design trends and homeowners’ needs, the Zenith Sliding Glass Door Series (Grandline and Narrowline) offers taller, multi-slide fiberglass doors with minimal sightlines. The product’s engineering and components support energy-efficient, Phius/passive house performance criteria, easy operation, and minimal maintenance.
- The outstanding thermal performance of the Alpen Zenith sliding doors is what really stands out with this product. With R-values in the 5 and 6 range, Passive House certification, and the use of thin triple and quad glass will make this door a market place leader.
