Wood-aluminium casement window ALFA LUM
AS 21

- Frame/panel thickness: 80/98 mm
-Aluminium profile thermal insulation ensured by 26 mm polyamide bars and 3 mm wood-aluminium insulators
- Maximum glass panel thickness: 34 mm
- Possibility to customize the colour of the thermally broken external component.
The intermediate component is painted in anodized silver.
The capability to produce with maximum effectiveness and efficiency, Is what guides Alfa Lum in the design and construction of its windows. On one side there are the benefits offered by the wood, such as the natural warmth and functionality, on the other side the longevity of the aluminium insures tangible benefits in the everyday life.
Alfa Lum uses special screws to join the external aluminium component with the inner wooden component for the fixed part (frame) and for the mobile part (door leaves). The major benefit of this method is that the wooden component can be easily replaced. Moreover this method avoids the need to remove the window and ensures the two sashes do not touch to allow for different expansion rates of the two materials. On the external aspect the stability and the solidity are guaranteed by the structural function of the aluminium, while wood is used for aesthetic purposes. In fact, aluminium frames offer more resistance to twisting forces and damages caused by weather conditions, in order to guarantee global protection, Alfa Lum applies multiple locking hardware to the solid bearing structures, equipped with hooked door latches to the frame located on the window to insure total protection.

The major factors leading the customer to the choice of an Alfa Lum window comes from the indirect advantages once the product is installed.

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