This system Unitized Glazing Service is completely designed in the factory campus. You will see a groove running horizontally & vertically. In this system the glass is held with the help of structural sealant. The application of structural sealant is the critical operation as this is the sealant which holds the glass to the frame for life.This system is most suitable for high rise buildings with huge quantity of glazing. In this system you do not need scaffolding for installation & the installation of the panels are done using a cradle/ hoist/ crane.