Our Series 450 new construction double hung & picture windows and our 451 slider window feature a true brick mould exterior, state-of-the-art fusion welded frames and optional energy efficient glass. Designed for easy installation, our Series 450 and 451 comes with an integrated j-channel and nail fin, while our Series 460 and 461 are available without the j-channel. Each window is exceptionally crafted to be durable and has a limited lifetime warranty.
Features & Benefits
- Choice of Double Hung, Slider or Picture Window Styles
- True brick mould exterior
- Both sashes tilt in for easy cleaning from inside the home
- Integrated J-Channel & nail fin
- Double Hung DP 35 Rating (window size tested 36” x 74”)
- 2-Lite Slider DP 25 Rating (window size tested 70” x 74”)
- Picture Window DP 50 Rating (window size tested 72” x 72”)
- Optional DP 50 rating (window size tested 50” x 86”)
- Series 460 available without J-Channel
- Limited lifetime warranty with 25 year insulated glass coverage
Series 450 Double Hung
Series 451 Horizontal Slider
Series 450 Picture Window
Architectural Shape Windows
Energy Efficient Glass Options
Atrium windows and doors are engineered with state-of-the-art glass technology to give you outstanding thermal efficiency. With a full range of glass options and special insulated spacers, we have a glass package to fit any climate need or budget. Verify product specifics before ordering.
Low-E glass is coated with a microscopic layer of silver that reflects radiant solar energy while permitting visible light to pass through the glass, providing more comfort and lower energy costs.
Low-E Glass and Argon Gas
Argon gas works like an insulating blanket between two panes of glass to further improve thermal eciency and decrease outside sound levels.
Ultra Low-E Glass and Argon Gas
Choose our ultimate glass package for optimal energy efficiency and maximum cost savings. Ultra Low-E glass offers three invisible layers of silver coating in addition to the superior thermal performance of argon gas.
Vinyl Color Options
Exterior Paint / Laminate Options
Brick Red (Paint)
Dark Chocolate (Paint)
Hunter Green (Paint)
Device/Monitor screen settings may affect color shown. Please refer to actual window sample when selecting colors. Only use mild, water based household cleaner on painted product and rinse immediately with water. See full cleaning instructions for details. Grid offering limited to 5/8” contoured or SDL on exterior painted windows.
Available Grid Patterns
Colonial Top Sash Only
Vertical Top Sash Only
Diamond Top Sash Only
Prairie Top Sash Only
Perimeter Prairie (DH)
Perimeter Prairie (SL)
Available Grid Types
1-Inch Contoured Grid
3/4-Inch Flat Grid
5/8-Inch Contoured Grid
5/8-Inch Flat Grid
Simulated Divided Lites (SDL) Grid
New Construction Brochure – ( pdf | 2 MB ) Series 450 Double Hung Data Sheet – ( pdf | 183 KB ) Series 450 Feature Sheet – ( pdf | 265 KB ) Series 451 Feature Sheet – ( pdf | 193 KB ) Series 451 Slider Data Sheet – ( pdf | 273 KB )