| 摘要 |
<p>The present invention relates to a horizontal siding window having an improved heat insulation property. When the horizontal siding window is closed by moving a window piece, a movement interruption member closes the space between the window piece and the window frame and is simultaneously coupled to a protrusion rib, which protrudes from the window frame, thereby making the closure more reliable. Accordingly, the horizontal siding window can interrupt any movement of air into or out of the room, thereby improving heat insulation efficiency and airtightness maintenance and exhibiting a more perfect heat insulation performance.</p> |
