Standard Fixed
A single rectangular or square glazing unit with minimal visible frame. The workhorse configuration used in residential bedrooms, hallways, stairwells, and commercial vision band applications.
Fixed windows are non-operable glazing units designed to admit daylight and provide unobstructed views without any ventilation function. Because the sash is permanently sealed to the frame, fixed windows achieve tighter air and water performance than most operable units and are frequently used in high-performance construction, commercial facades, and anywhere views take priority over ventilation.
Product Reference
Anatomy of a Window
Configurations
How It Comes
Applications
Where It's Used
View Corridors
Large fixed units maximize unobstructed sightlines in living rooms, master suites, and commercial lobbies where ventilation comes from adjacent operable units or mechanical systems.
Daylighting
Clerestory and high-wall fixed glazing brings natural light deep into floor plates and interior rooms without compromising privacy or usable wall space below.
Commercial Curtainwall
Fixed vision panels are the primary glazing unit in stick-built and unitized curtainwall systems, manufactured to exact module dimensions and tested as part of the full assembly.
Residential Focal Points
Picture windows centered on wooded lots, water features, or mountain views become the primary design element of a room — coordinated with interior trim, furniture, and framing.
Selection Guide
How To Specify It
Use these checkpoints when comparing quotes, reviewing submittals, or deciding whether this product type fits the opening.
Frame Material
Wood Fixed Window
Traditional frame material prized for natural warmth, high insulation value, and workability. Interior wood surfaces accept stain or paint. Exteriors are typically factory-finished, painted, or clad in aluminum or fiberglass.
Advantages
- Highest insulation value of any common frame material
- Interior accepts stain or custom paint color
- Naturally rigid — handles large spans without visible deflection
Considerations
- Requires periodic maintenance to prevent rot and finish failure
- Susceptible to moisture damage if not correctly detailed and flashed
- Typically higher cost than vinyl alternatives
Frame Material
Vinyl (PVC) Fixed Window
Extruded PVC profile with hollow chambers that provide thermal isolation. Factory-colored in white, tan, or a limited range of standard tones. The dominant residential replacement window material in North America.
Advantages
- Lowest maintenance — will not rot, corrode, or need repainting
- Good thermal performance through multi-chamber extrusions
- Cost-effective across a wide range of project sizes
Considerations
- Cannot be field-painted — color is fixed at manufacture
- Expands and contracts noticeably with temperature swings
- Lower rigidity than wood or aluminum in very large spans
Companies offering Vinyl (PVC) Fixed Window
Frame Material
uPVC Fixed Window
Unplasticized PVC — a stiffer variation of standard vinyl used widely in European window systems. Profiles are typically reinforced with internal steel or aluminum extrusions for large spans.
Advantages
- Dimensional stability superior to standard vinyl
- Internal steel reinforcement handles larger units confidently
- Excellent long-term weather and UV resistance
Considerations
- Color range still limited compared to wood or aluminum
- Heavier than standard vinyl due to internal reinforcement
- Less common in North American supply chains
Companies offering uPVC Fixed Window
Frame Material
Aluminum Fixed Window
Thermally broken aluminum is the standard in commercial and high-performance residential construction. Offers the slimmest possible sightlines for a given structural span and a nearly unlimited powder coat color palette.
Advantages
- Slimmest sightlines — maximizes glass area in the opening
- Extremely rigid and durable over decades of use
- Wide range of anodize and powder coat finishes
Considerations
- Requires a thermal break to avoid condensation and heat loss
- Higher cost for thermally broken commercial-grade systems
- Conducts heat readily if the thermal break is undersized
Companies offering Aluminum Fixed Window
Frame Material
Fiberglass Fixed Window
Pultrusion-formed fiberglass frames offer the strength of aluminum with thermal properties approaching wood. The frame expands and contracts at a rate similar to glass, reducing long-term seal stress.
Advantages
- Dimensional stability — minimal movement with temperature changes
- High strength-to-weight ratio handles large, heavy units
- Can be factory-painted or stained to resemble wood
Considerations
- Premium cost — typically the most expensive frame material
- Fewer profile options from a smaller manufacturer base
- Heavier than vinyl, adding to handling and installation cost
0.17 – 0.30 Btu/hr·ft²·°F
U-Factor
0.19 – 0.70
SHGC
Performance & Ratings
At a Glance
Project Coordination
Details To Confirm Early
01
Coordinate adjacent ventilation
Because fixed windows do not open, room ventilation usually comes from nearby casements, awnings, sliders, doors, or mechanical systems. Do not count a fixed unit toward egress or natural ventilation.
02
Verify water management
Confirm sill pan, flashing sequence, weep paths, sealant joints, and compatibility with cladding. Large fixed units put more consequence on the rough opening and exterior water plane.
03
Plan access and installation
Oversized fixed windows may require multiple installers, glass cups, lifts, or site glazing. Check delivery path, storage, final weight, and whether the unit ships glazed or knock-down.
Product Questions
Common Questions
Are fixed windows more energy efficient than operable windows?
Usually, yes. A fixed sash has fewer moving parts and a tighter seal path, so air and water performance can be stronger than comparable operable units with the same frame and glass package.
Can a fixed window be used for egress?
No. A fixed window does not open, so it cannot provide emergency escape or rescue access. Bedrooms and required egress locations need an approved operable opening.
When should I choose a picture window instead of a standard fixed window?
Choose a picture window when the opening is meant to frame a primary view and the design benefits from fewer divisions, larger glass area, and a cleaner sightline.