VPS windows come in different styles depending on the anchoring system. The two most common types of these windows are the utility and perforated models, and can either be installed vertically or horizontally, depending on the on the size of the opening. The VPS perforated windows can be installed by a system of cables or rods secured to the face of the window and attached to a uni-strut, a metal bracing device attached to the inside of the building. A steel cable is strung through the top of the VPS, through the uni-strut and attached to a tightening mechanism. It is restrained by either a cable or threaded bolts.
Other VPS windows are installed using a crossbar attached to the window with a spring-loaded side pin. This crossbar is attached to the uni-strut, which is then attached to the inside of the building. It is also restrained by either a cable or threaded bolts. VPS windows are installed by using steel channels, which are fitted at the top and the bottom of the window opening. On both the top and bottom of the window, a steel bar is attached to the window covering with pins. The pins are attached to the bar and inserted into the slits on the side of the window covering.
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