It will come as no surprise to learn that modern windows are primarily intended to be ‘warm’. This means that they are not supposed to allow warm air to escape from the house. This parameter is described by the heat transfer coefficient Uw, which gives us the answer to the question of how much heat escapes through the window due to the difference in external and internal temperatures.
Extruded aluminum material is immune to corrosion thus can withstand harsh environmental conditions. Of course, this is advantageous since it means the resultant windows and doors profiles can last several years without deformation.
Heat treatment: The profile undergoes different systems for quenching and aging treatment to obtain the mechanical properties of the profile .
Moreover, the material features definitive cross-sections allowing an easier machining process, which increases flexibility.