Walk into any building materials showroom in Sharjah or Dubai and you will find both aluminium and uPVC windows on display. Both are popular, both can be double-glazed, and both come in a range of finishes. So which is actually better for a UAE property?
How UAE Conditions Affect Each Material
Heat and UV Exposure
Aluminium is inherently heat-resistant and UV-stable. Powder-coated aluminium will not warp, soften, or change colour under even the most intense Gulf sun. A quality powder-coated aluminium window in the UAE will look the same after 20 years as it did on day one.
uPVC is more susceptible to heat. Standard uPVC softens at around 60°C — a temperature regularly exceeded on sun-exposed window frames in the UAE. Premium stabilised uPVC formulations perform significantly better, but you need to verify the specification before purchasing. Winner: Aluminium.
Thermal Performance
Standard aluminium conducts heat readily. Thermally broken aluminium (with a polyamide strip between inner and outer sections) achieves U-values of 1.4–1.8 W/m²K — comparable with premium uPVC. Multi-chamber uPVC profiles can achieve 1.2–1.4 W/m²K. In the UAE, solar control glazing matters more than frame thermal resistance. Winner: Draw (with thermally broken aluminium specified).
Durability and Maintenance
Aluminium requires virtually zero maintenance beyond cleaning. The powder coat finish does not chip, peel, or fade. uPVC can become brittle in extreme UV environments over time. Winner: Aluminium.
Structural Strength
Aluminium has a significantly higher strength-to-weight ratio. This allows larger pane sizes, slimmer sightlines, and wider spanning frames. For large sliding doors or curtain wall openings, aluminium is the only practical choice. Winner: Aluminium.
Cost
uPVC is typically 20–35% cheaper than comparable aluminium windows in the UAE market. For a basic apartment fit-out or a tight budget, uPVC makes financial sense. Winner: uPVC (for budget-constrained projects).
Quick Comparison Table
| Factor | Aluminium | uPVC |
|---|---|---|
| Heat resistance | Excellent | Good (premium grade) |
| Durability | Excellent (20–30 yrs) | Good (15–20 yrs) |
| Structural strength | Excellent | Moderate |
| Aesthetics | Premium | Mid-range |
| Cost | Higher | Lower |
Recommendation
For most UAE projects — villas, commercial buildings, mid-to-high-end apartments — thermally broken aluminium with Low-E double glazing is the right specification. The durability advantage in the Gulf climate outweighs the higher initial cost over a 20–30 year ownership period. For budget apartment fit-outs, quality stabilised uPVC with double glazing is a reasonable choice.
Al Refada Aluminium supplies and installs both systems. Contact us for a site survey and comparative quote.