Frequently Asked Questions on Double Glazing

What is the advantage of using aluminium in uPVC windows?

Using aluminium in uPVC windows gives you the following advantages:

  • Virtually no maintenance over its long lifetime
  • Slim, strong sections that will not warp or twist
  • About one third the expansion of PVCu

Its main disadvantage is that it is a relatively poor insulator. However, thermal break aluminium frames are available, which offer better insulation.

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