INSULATION AND AIRTIGHT PERFORMANCE AND DRAINAGE PERFORMANCE SUPERIOR DOUBLE WATERTIGHT WINDOWS

摘要

The present invention relates to a double watertight structured window with excellent insulation, airtight and drainage performance, and more specifically, to a double watertight structured window with excellent insulation, airtight and drainage performance, to install quadruple mohair in a window frame to enhance the insulation, airtight and soundproof performance. To improve insulation and airtight performance, a finishing piece is installed in an upper and a lower part of a side of a window frame. To discharge water flowing into the inside of the window frame from the outside of the window frame, a groove is formed in each compartment of the window frame. Since a window rim is completely closed and attached to the window frame, a locking device provides excellent anti-thief performance and the window rim is easily separated from the window frame.