2022 latest design American Single Hung Thermal Break Aluminum vertical Sliding Window with inside grill by Doorwin

Product Description Doorwin windows are made with a variety of high-performance glazing options to meet your energy performance and budgetary needs. For all windows and doors exported to North America, we provide fully heat-treated, tempered glass as standard. This provides extreme impact resistance to prevent glass breakage, reducing warranty claims. When broken, tempered glass uniformly shatters into small pieces for safety. Our standard glazing for the North American market is SGCC (Safety Glazing Certification Counciland IGCC (Insulating Glass Certification Council)certified for performance and safety. Glazing performance is a key factor in lowering a structure’s overall energy usage. The glazing unit determines three factors that affect energy efficiency and comfort: 1) The flow of energy via thermal conductance. 2) The transmission of light which affects visibility, and the amount of solar heat gain. 3) The transmission of sound. Experts estimate