There are several subcategories of vinyl windows based on the method of manufacture and type of raw materials used. While the fundamental nature and look are pretty same, they do come with some variations that you should know before making a purchase.
So what makes these vinyl window types unique, and where are they most suitable? Let us break it all down here in this ultimate guide.
Contents
What Are Vinyl Windows?
Vinyl windows are made of unplasticized polyvinyl chloride (PVC). It is a tough, weather-resistant plastic—close to what is used in plumbing pipes, but without substances that make pipes flexible. They’re also referred to as UPVC windows in short and give an excellent mix of durability, energy efficiency, and affordability.
Because Vinyl is naturally resistant to moisture, there are no warping, rotting, or insect ingestion problems. You also receive durable color and finish, and do not have to paint or stain regularly to have them rejuvenated. Additionally, the frames also have built-in elements that increase the insulating value of the material.
The 3 Main Vinyl Window Types (with Pros & Cons)
The following are the three most commonly available vinyl window types. However, several window manufacturers also produce proprietary vinyl, with a few variations.
1. Standard Vinyl Windows
They are made of pure PVC and manufactured by an extrusion process in which the vinyl is melted and pushed through molds to form the shapes of the sashes. Upon cooling, these sashes are cut and assembled together into window frames.
They have small hollow pockets within the body, which make them light. But if packed with insulating foam, they also increase the insulation capabilities of the material.
The finished windows are further reinforced with fusion-welded corners and weather stripping for extra strength and sealing drafts.
Best suited for:
- Single-family dwellings (budget-conscious upgrades)
- Rental units and investment properties
- Low-rise commercial buildings
| Pros | Cons |
| Inexpensive | Less structural strength than other types |
| Low maintenance needs | Limited color options |
| Well-insulated when filled with foam | Possible warping in intense heat if not reinforced |
| Resistant to moisture and rot |
2. Composite Vinyl Windows
These windows have some extra ingredients such as fiberglass strands, wood fibers, or recycled composites to provide additional strengthening. The outcome? Stiffer frame with better thermal resistance and refined in appearance. They also hold heavier glass panes without sagging.
Fiberglass, for example, contributes to stiffness so that the window remains stable during strong winds. Recycling material also gives strength, but importantly, it makes vinyl windows a greener choice.
Best suited for:
- Suburban and urban homes in mixed climates
- Mid-rise multifamily buildings or condos
- Light commercial buildings
| Pros | Cons |
| More thermally stable | More expensive than standard vinyl |
| Stronger and more robust than standard vinyl | Heavier—may require reinforced hardware |
| Better insulation | |
| Sleeker look |
3. Engineered Vinyl Windows
Engineered vinyl windows use advanced extrusion technology, often involving several layers—such as a co-extruded exterior color and harder interior frames (at times including aluminum or steel).
The frame components are precision-engineered for best-in-class thermal performance and longevity. They also feature intricate multi-chamber designs to achieve optimum energy performance and sound insulation.
Best suited for:
- Green buildings and energy-efficient homes
- High-rise residential or commercial properties
- Custom build passive houses
| Pros | Cons |
| Top-tier energy efficiency | Higher price point |
| High structural integrity | May be overkill for milder climates |
| Low expansion and contraction | |
| Great soundproofing |
Vinyl vs. Fiberglass vs. Aluminum Windows: Quick Comparison
Still not sure if vinyl is your best bet? Let’s do a quick side-by-side:
| Feature | Vinyl | Fiberglass | Aluminum |
| Cost | Most affordable | More expensive | Mid-range |
| Durability | Good | Excellent | Good |
| Energy Efficiency | High (especially engineered) | Very high | Lower |
| Maintenance | Very low | Very low | Moderate |
| Aesthetics | Good (limited color) | Excellent (paintable) | Sleek, modern |
| Noise Reduction | Good | Excellent | Average |
| Climate Suitability | Most climates | Extreme climates | Hot/dry climates |
Vinyl wins for affordability and ease of maintenance. Fiberglass excels in durability and insulation but comes at a price. Aluminum offers a modern look and strength, but it’s not the best for insulation unless thermally broken.
What Are the Best Vinyl Window Types?
Here’s how well-known window styles compare when constructed of vinyl:
- Casement Windows: These are great in vinyl. The sash presses firmly against the frame, giving you excellent energy efficiency, especially with composite or engineered vinyl.
- Double-Hung Windows: A classic choice. They work well in all vinyl types, but make sure the balance systems are well-constructed (this is where engineered vinyl shines).
- Sliding Windows: Vinyl frames keep sliders light and smooth. Standard vinyl works well here, but look for reinforced sashes for larger openings.
- Picture Windows: Since these don’t open, they’re mostly about aesthetics and insulation. Vinyl picture windows (especially engineered) offer great thermal performance with minimal upkeep.
- Awning Windows: A smart pick for ventilation. Vinyl works well but make sure the hinges and mechanisms are built to last, especially in cheaper standard models.
- Bay or Bow Windows: These need strong, supportive framing. Composite or engineered vinyl is the way to go here for both structure and longevity.
- Hopper Windows: Standard vinyl works fine here, but composite vinyl adds more insulation and durability, especially if the window’s in a damp or draft-prone area.
- Garden Windows: Box-style window that juts out, often used above kitchen sinks. You’d want fiberglass or engineered vinyl windows for these for better durability and aesthetic value.
Conclusion
This guide should have given you a basic understanding of the differences between vinyl window types. For more specific recommendations, consult with professionals and tell them your needs and desires in detail to receive the best recommendation.
Having trouble sorting through all the vinyl windows? Call Mannlee today for all types of window manufacturing, and let our professional windowmakers show you the ideal solution for your project!
