5 Reasons why uPVC windows are NOT suitable for Australian climate

While uPVC windows have many advantages, there are a few reasons why they may not be considered suitable for the Australian climate, particularly concerning the sun and the ozone layer. Here are five reasons:

1. UV Degradation. uPVC materials can be sensitive to prolonged exposure to strong UV radiation. The harsh Australian sun can cause the uPVC frames to degrade, fade, or become brittle over time.
2. Heat Expansion. uPVC has a higher coefficient of thermal expansion compared to other materials like aluminum or timber. In regions with high temperature fluctuations, such as Australia, uPVC frames may expand and contract significantly, potentially leading to operational issues, warping or gaps in the window seals.
3. Discoloration. Due to the intense sunlight in Australia, uPVC window frames may experience discoloration and fading over time. This can affect the aesthetic appeal of the windows and may require additional maintenance or even replacement.
4. Ozone Layer. Australia experiences higher levels of UV radiation due to the depletion of the ozone layer in some areas. This increased UV exposure can have a more significant impact on uPVC materials, potentially accelerating their degradation.
5. Thermal Performance. While uPVC windows can offer good insulation properties in moderate climates, their thermal performance may not be as efficient in extreme hot or cold conditions. The high heat resistance of uPVC can limit its ability to transfer heat, potentially resulting in poor energy efficiency in hot climates.

It's important to note that technological advancements in uPVC window manufacturing, such as UV stabilizers and thermal reinforcement, can mitigate some of these issues. However, considering the specific climate and environmental factors in Australia, alternative window materials like aluminum or thermally broken frames may be more suitable for long-term durability and performance.

Speak to Alusmart's technical staff to understand more.