casement uPVC window and door systems have a 3-chamber system with 60 mm construction depth. It is a 2 gasket system that seals and maintains temperature. The casement system is designed with internal gaskets exchangeable giving flexibility for the customer to choose from various glass thicknesses. Outward open window can be fixed with a grill provision and inward open mesh even on the 4-inch wall. The system can be designed for heavy wind load regions without affecting the long-term performance of the window and door.
