Choosing the right windows for your home is a significant decision, especially in New Zealand’s unique climate. uPVC and aluminium windows are two of the most popular options. This article explores their differences to help you make an informed decision.
Thermal performance comparison: Which is warmer, aluminium vs uPVC windows?
Thermal performance is a key consideration when choosing windows, and uPVC is considered warmer than standard aluminium windows. They are known for their excellent thermal insulation properties, offering up to 2.5 times better insulation than traditional double-glazed aluminium windows. This means homes with uPVC windows stay warmer in winter and cooler in summer, helping to reduce energy bills.
Aluminium windows, while strong and durable, are less insulating unless they feature thermal breaks. Thermally broken aluminium windows significantly improve insulation but often come at a higher cost.
Key Takeaway:
If energy efficiency is your priority, uPVC is the best choice for insulation.
Energy consumption: Which is better for my energy bill, aluminium windows or uPVC?
One of the most significant benefits of uPVC windows is their superior thermal performance over standard aluminium windows, saving homeowners up to 50% on energy costs.
New Zealand energy costs have risen faster than inflation over the past decade, so it’s no surprise that homeowners are looking at ways to reduce their energy bill. Windows are one of the fastest ways heat can seep out of a home, so improving thermal insulation can drastically decrease energy use.
Key Takeaway:
For NZ homes looking to reduce their energy bill, uPVC windows reduce heat transfer and retain more warmth than other options, making them a preferred choice.
Cost analysis: Are uPVC windows more expensive than aluminium?
Standard aluminium windows are typically less expensive upfront; however, thermally broken aluminium frames (offering improved insulation) are priced similarly to uPVC windows.
Initial costs and long-term savings are important considerations. Over time, the energy savings from the superior insulation of uPVC windows can offset their higher initial cost. This makes uPVC a cost-effective option in the long run.
Key Takeaway:
When it comes to cost, aluminium may be cheaper upfront, but uPVC provides better long-term value due to energy efficiency savings.
Durability considerations: Are aluminium or uPVC windows easier to maintain?
uPVC windows are highly resistant to corrosion, making them an excellent choice for homes in coastal areas. They can last over 40 years with minimal maintenance, requiring only occasional cleaning.
Durability is crucial, especially in areas prone to harsh weather. This is especially important for New Zealand homes, with a significant proportion of our population living close to the ocean.
Aluminium windows are also durable but may corrode over time if exposed to salt air. These windows require regular maintenance, such as cleaning and anodising, to keep them in top condition.
Key Takeaway:
For low maintenance and corrosion resistance, uPVC windows are an excellent choice, especially in coastal regions.
Noise reduction: What is quieter for my home, uPVC or aluminium windows?
uPVC windows are generally quieter for a home compared to aluminium windows due to their superior insulation and sealing properties. The multi-chambered frames in uPVC windows help block out external noise more effectively, creating a quieter indoor environment.
Aluminium windows, while durable, tend to transmit sound more readily, especially if they lack thermal or acoustic breaks. Noise reduction can be further improved with different glass options, which NK Windows can advise you on.
Key Takeaway:
uPVC is an ideal choice for homes in noisy areas, such as near busy roads or urban centres.
Aesthetic options: Which looks better, aluminium or uPVC windows?
When it comes to aesthetics, both materials have their advantages. Aluminium windows feature slim profiles, and aluminium frames can be powder-coated, coming in a wide range of colours. This makes them ideal for modern architectural designs.
uPVC windows are typically available in white and neutral colours, though other colours can be ordered at an additional cost. While not as slim as aluminium, uPVC frames offer clean lines and versatility for various home styles. Additionally, uPVC can be finished in a variety of different shells from coloured aluminium to coloured wood) for a tailored look.
Key Takeaway:
Whether you choose aluminium or uPVC windows, either option can look good on your home. It comes down to style preference.
Environmental impact: Which material has a lower carbon footprint?
Looking at the whole life-cycle of uPVC vs aluminium, assessments show uPVC stands out as an environmentally competitive option. uPVC windows and doors are more durable, require lower maintenance, have better energy consumption and lower CO2 emissions than alternative materials, like aluminium.
Aluminium is a highly recyclable material, making it an eco-friendly option. However, its production involves significant energy consumption. uPVC is less energy-intensive to produce but is not as easily recyclable as aluminium.
Key Takeaway:
Environmental sustainability is a growing concern for homeowners. If recyclability is a priority, aluminium is the best option. However, if a full life-cycle footprint is considered, uPVC is more sustainable than alternative materials, like aluminium.
Conclusion
When choosing between uPVC vs aluminium windows in New Zealand, consider your priorities:
- Choose uPVC for superior insulation, energy savings, long-term cost savings, low maintenance, and improved noise reduction
- Opt for aluminium for a modern aesthetic and higher environmental sustainability
Both materials have their strengths, so your decision should align with your home’s needs and personal preferences. Whichever you choose, investing in high-quality windows will enhance your home’s comfort and value.
