CLASSIC 61
Four-Chamber Vinyl Window
The CLASSIC 61 is a practical vinyl window system designed for residential buildings and a wide range of construction projects. Its 2.4 in. (61 mm) four-chamber profile combines structural stability with a durable, low-maintenance surface.
Continuous steel reinforcement provides additional profile stability. The window system features double-pane insulated glazing, while a continuous lip seal helps protect against air and water infiltration.
Built for Comfort, Efficiency, and Lasting Performance
Every component is designed to support dependable insulation, structural strength, and long-term everyday use.
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61 MM PROFILE DEPTH
A practical profile depth developed for residential buildings and a wide range of construction projects.
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FOUR-CHAMBER PROFILE
Four internal chambers combine functional insulation with a stable, dependable profile construction.
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Uf VALUE 1.37 W/(m²K)
A dependable frame U-factor designed to support everyday thermal performance in residential projects.
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STEEL REINFORCEMENT
Continuous internal steel reinforcement contributes to stability and dependable operation.
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DOUBLE-PANE GLAZING
Double-pane insulated glazing supports thermal comfort and practical everyday performance.
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CONTINUOUS LIP SEAL
A continuous lip seal helps protect the system against air and water infiltration.
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AIR AND WATER PROTECTION
The coordinated profile and sealing design supports dependable weather protection.
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LOW-MAINTENANCE SURFACE
A durable vinyl surface designed for simple care and reliable long-term use.
Operating Types, Configurations, and Custom Shapes
The system supports one-, two-, and three-part windows, balcony doors, and custom shapes for a wide range of architectural requirements.
OPERATING TYPES
CONFIGURATIONS AND CUSTOM SHAPES
Structural requirements may limit certain custom shapes to fixed units.
