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Brands and Window Styles, Explained
Andersen, Pella, Marvin, and NT each have product families with different materials, configurations, finishes, and price positions. The right choice depends on budget, architecture, material preference, glass package, and desired appearance.
Single-hung
Operation: One sash moves while the other remains fixed.
Use: Common in bedrooms and straightforward replacement openings.
Ventilation/view: Ventilates through the operable sash; simple operation can mean fewer moving parts.
Maintenance: Review cleaning access and the condition of balances.
Double-hung
Operation: Both upper and lower sashes move.
Use: Useful where flexible ventilation and a traditional look matter.
Ventilation/view: Can provide airflow from two openings; tilt-in features may simplify cleaning.
Maintenance: More hardware means more components to maintain.
Casement
Operation: The sash cranks outward from one side.
Use: Often selected where an unobstructed view and strong ventilation are priorities.
Ventilation/view: Can catch cross-breezes effectively when open.
Maintenance: Check operator condition, clearance, and seal maintenance.
Sliding
Operation: One or more panels glide horizontally.
Use: Common where a wide opening needs an easy side-to-side operation.
Ventilation/view: Provides practical ventilation without projecting outward.
Maintenance: Track cleaning and roller condition affect operation.
Picture
Operation: A fixed pane does not open.
Use: Used for views, daylight, and large areas where ventilation is not needed.
Ventilation/view: Maximizes view and daylight but provides no direct ventilation.
Maintenance: Large glass areas make glass performance and cleaning access important.
Awning
Operation: The sash hinges at the top and opens outward.
Use: Helpful for ventilation when light rain protection is useful.
Ventilation/view: Can ventilate while the opening remains partially sheltered.
Maintenance: Review operator access and exterior clearance.
Specialty / geometric
Operation: A custom shape or configuration designed for a particular opening.
Use: Used for architectural emphasis or unusual wall geometry.
Ventilation/view: Ventilation depends on whether any portion opens.
Maintenance: Confirm measurements, lead time, glass, and replacement access.
Bay or bow
Operation: Multiple windows project outward as a group.
Use: Used to add a broader view or interior feature where the structure allows.
Ventilation/view: Can combine fixed and operable units for view and ventilation.
Maintenance: Review support, roof, trim, flashing, and structural conditions.