Alpen Zenith High Performance Products
US Style Fiberglass Windows & Sliding Doors
Beauty, Comfort, Performance
Alpen Zenith uses advanced, customized suspended coated film glazing to deliver performance equal to or greater than what can be achieved with traditional triple and quad-pane windows.
Zenith fiberglass windows blend durability with North American style and functionality, offering energy efficiency, comfort, and lasting craftsmanship.
Benefits of the Alpen Zenith Series ZR-6 / 625
- NFRC Certified thermal performance up to R-6.7
- Exceed Energy Star® standards
- AAMA Gold Labeled to Commercial Window (CW) performance
- Superior air and water infiltration resistance
- Glazing options for solar control and passive heat gain.
- Advanced triple-pane, suspended-film glazing technology stabilizes interior glass surface temperature to create comfortable indoor living spaces year-round.
- 99%+ UV blockage protects interior finishes
- Custom built to fit your budget and design
- Center-of-glass R-8
Benefits of the Alpen Zenith Series ZR-10 / 1025
- The ZR-10 / 1025 high profile fixed window certified to a 0.10 U-factor
- Operable windows certified to 0.14 U-factor
- Super-insulated energy efficient pultruded fiberglass frames
- Double film, triple chamber insulated glass assemblies featuring four independent low-e surfaces
- High-performance spacers and high-performance inert gas fill
- 99.5 % UV protection
- Extraordinary solar control performance
- Proudly designed, developed and manufactured in the USA
Benefits of the Alpen Zenith Series ZR-9 / 925
- Up to R-9.1 insulation–3x Energy Star® rating!
- 99.5% UV Protection
- Reduced condensation
- Increased indoor comfort, so it’s warmer in the winter and cooler in the summer
- Can lower energy bills
- Over 28 years experience in both residential and commercial windows
- Can contribute to LEED credits
- Can decrease the size of your HVAC system
Benefits of the Alpen Zenith Series ZR-7 / 725
- Up to R-7.1 insulation exceeds Energy Star® standards
- 99.5% UV protection
- Reduced condensation
- Increased indoor comfort; warmer in the winter and cooler in the summer
- Can lower energy bills
- Over 28 years experience in both residential and commercial windows
- Can contribute to LEED credits
- Can decrease the size of your HVAC system
Benefits of the Alpen Zenith Series ZR-5 / 525
- Thermal performance up to R-5.9
- 99.5% UV protection
- Our highest value fiberglass option
- Virtually maintenance free
- Reduced interior condensation
- Unique design keeps the window warmer in the winter and cooler in the summer
- Architectural freedom allowing for more glass in your design
- Can contribute to LEED credits
Download the ZR-5 / 525 Window and Door Data Sheet
Download Zenith Series NFRC Full-Window and Glass Thermal Performance
