In strong sun, UV resistance keeps a profile from fading or yellowing. Here's what to know.
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Low-grade profile can yellow or fade; quality profile uses UV stabilisers to hold colour and resist degradation in strong sun.
In a sunny climate it keeps the profile from yellowing or degrading, especially for coloured and dark finishes.
Yes, especially for darker finishes on sun-facing elevations. Quality systems are UV-stable.
Related guides covering this topic from other angles — different products, applications, or contexts.
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