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The Alitherm 300 range is a very slim, sightline window with a frame width of 53mm and a frame to bead depth of only 59mm. With an A-energy rating, it’s one of the most advanced aluminium windows on the market.
The Alitherm 600 range,offers a more ornate, ovolo finish to the external edge of the sash and outer frame. With a frame width of 59.5mm and a frame to bead width of 84.5mm, this window is B-energy rated.
The Evolution range has been specifically designed as a thermally efficient direct replacement for old steel windows. It is ideal for listed buildings or buildings where planning constraints apply.
All Astral aluminium windows have a polyamide thermal barrier to reduce heat loss and improve thermal performance. High quality EDPM rubber gaskets and weather brushes aid weather-proofing.
|Size & Weight|
|Depth (?)||59 mm|
|Width (?)||59.5 mm|
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