Any window in any building that can be heard from outside, feel the cold and heat outside, and see environmental pollution inside needs to be replaced with uPVC double-glazed windows.

First of all, I have to tell you that to compare these two polymers with each other, several things should be analyzed and evaluated. UPVC windows are usually different from aluminum windows in terms of materials, execution and installation, as well as in terms of production methods, and these two functional polymers can be examined and analyzed in three phases.

Due to the parallel rail movement system, sliding windows always have a gap between two windows, which is not present in the hinged windows of this space, and they provide relatively more suitable insulation in the building.

Yes, sliding window profiles are more expensive than hinged window profiles.

Failure to use galvanization with specified thickness inside the upvc window profiles can be the main reason for the change in form after the installation operation. Usually, depending on the type of profiles used, galvanized profiles with thicknesses of 1.25-1.5 mm are used during construction. Also, the use of galvanized with a thickness less than 1 mm makes it possible to change the shape and seat of the upvc window due to the static pressure of the building.