For a new home intended for personal residence, prioritize thermal-break aluminum or “system windows” over standard aluminum alloy or uPVC (plastic-steel) frames. Standard aluminum lacks thermal breaks, leading to drafts and poor temperature insulation (cold in winter, hot in summer), while uPVC is prone to yellowing and warping.

If you are on a tight budget or need a short-term solution, choose national-standard thermal-break aluminum (with a wall thickness of ≥1.8mm and PA66 nylon thermal-break strips). However, for high-rise apartments, street-facing units, or long-term homes, opt directly for system windows, which offer superior airtightness and sound insulation.Forge International system windows utilize virgin aluminum with an eight-chamber design; they are well-suited to the hot, rainy climate of the south, meet high standards for sound and thermal insulation, and offer convenient after-sales service via local factories.
