It supports the louvers, controls airflow, and determines how well the window performs against weather, sound, and time.
Among the most common frame materials are aluminum, uPVC (unplasticized PVC), and wood. Each option has distinct strengths and limitations depending on climate, design preference, and maintenance needs.
This guide compares all three materials so you can make an informed decision when selecting the best frame for your jalousie windows.
Understanding the Role of the Frame
A jalousie window frame must:
- Hold multiple glass or acrylic slats securely.
- Allow smooth operation through a crank or lever system.
- Resist corrosion, warping, or moisture damage.
- Provide an airtight and weatherproof seal when closed.
The frame material determines how well these functions are achieved over time.
1. Aluminum Jalousie Window Frames
Overview
Aluminum is one of the most widely used frame materials for jalousie windows, especially in modern architecture and coastal buildings.
Advantages
- Strong and Durable: Aluminum resists bending and is less likely to warp under pressure or heat.
- Corrosion-Resistant: When coated or anodized, it withstands humidity and salt air, making it ideal for seaside homes.
- Lightweight: Easy to handle, install, and maintain compared to steel or wood.
- Slim Design: Allows larger glass areas for better visibility and ventilation.
- Long Lifespan: Can last decades with minimal care.
Limitations
- Conducts Heat and Cold: Not as energy-efficient as uPVC or wood unless thermally broken.
- Noise Transmission: Metal frames may transfer more external noise.
- Higher Cost: Premium-grade anodized aluminum can be pricier than uPVC.
Best For: Commercial buildings, high-rise apartments, and coastal or tropical locations that experience humidity and salty air.
2. uPVC Jalousie Window Frames
Overview
uPVC (unplasticized polyvinyl chloride) is a type of rigid plastic that has become increasingly popular for modern window systems. It offers great insulation and low maintenance, making it an energy-efficient alternative to metal or wood.
Advantages
- Excellent Thermal Insulation: Keeps indoor temperatures stable and reduces energy costs.
- Weather-Resistant: Does not corrode, rust, or rot, even in wet conditions.
- Low Maintenance: No painting or sealing required — just regular cleaning.
- Sound Reduction: uPVC frames absorb more sound vibrations than metal.
- Cost-Effective: More affordable than aluminum or hardwood frames.
Limitations
- Less Rigid than Aluminum: Can expand slightly in extreme heat.
- Not Ideal for Very Large Windows: May need steel reinforcement for structural stability.
- Limited Colour Options: Usually available in white or light tones; darker finishes may fade in direct sunlight.
Best For: Residential homes, offices, and energy-efficient buildings that prioritize insulation and quiet operation.
3. Wooden Jalousie Window Frames
Overview
Wood has been used in window construction for centuries and gives jalousie windows a warm, natural appearance. It’s a preferred choice in traditional, rustic, or classic architectural designs.
Advantages
- Aesthetic Appeal: Natural wood texture adds character and elegance.
- Good Insulation: Excellent thermal and acoustic performance.
- Customizable: Can be painted, stained, or carved to match décor.
- Environmentally Friendly: When sustainably sourced, wood is a renewable material.
Limitations
- Requires Maintenance: Needs regular sealing, painting, or varnishing to prevent rot and termite damage.
- Vulnerable to Moisture: Prone to swelling or warping in humid environments.
- Heavier and Costlier: Premium hardwoods are more expensive and harder to install.
Best For: Interior applications, heritage homes, resorts, and buildings emphasizing natural or traditional design aesthetics.
Comparison at a Glance
| Feature | Aluminum | uPVC | Wood |
|---|---|---|---|
| Durability | Excellent | Good | Moderate |
| Maintenance | Low | Very Low | High |
| Weather Resistance | Excellent | Excellent | Moderate |
| Thermal Insulation | Moderate | Excellent | Good |
| Aesthetic Appeal | Modern | Clean | Classic |
| Cost | Medium–High | Low–Medium | High |
| Best Use | Commercial & coastal | Residential | Traditional & interior |
Choosing the Right Frame Material
When deciding between aluminum, uPVC, and wood, consider these factors:
Climate:
- Humid or coastal: Aluminum or uPVC perform best.
- Dry or moderate: Wood can be used effectively.
Building Style:
- Modern or industrial: Aluminum suits sleek architecture.
- Energy-efficient or quiet spaces: uPVC is ideal.
- Classic or rustic: Wood provides timeless appeal.
Maintenance Preference:
- Minimal upkeep: uPVC or aluminum.
- Willing to refinish occasionally: Wood.
Budget:
- Low budget: uPVC.
- Mid-range: Aluminum.
- Premium aesthetic: Wood.
Conclusion
Each frame material gives jalousie windows its own identity and functionality.
Aluminum offers unmatched strength and longevity for modern, coastal, or commercial settings.
uPVC delivers energy efficiency, quiet operation, and low maintenance for contemporary homes.
Wood provides natural beauty and charm for traditional or interior applications, though it requires extra care.
Choosing the best material depends on your environment, design preferences, and maintenance expectations. When selected carefully, the right frame ensures your jalousie windows stay functional, attractive, and durable for many years.
