Door and window with wind and water dust noise proof function

摘要

The present invention relates to an airtight window and door in a window and door for preventing the inflow of a draft, rainwater, dust, and noise by blocking the gap between a rail of a door frame and a door. The present invention comprises: an airtight member formed at lower ends of both inner side surfaces of a lower door roller installation groove of the door to be in close contact with the outer surface of the rail of the door frame when the door is installed; and an airtight member protection projection on both upper ends of the outer surface of the rail of the door frame to face both inner surfaces of the lower door roller installation groove, wherein the protruding width of the airtight member protection projection is formed larger than the thickness of the airtight member. The airtight member protection projection projects more than the thickness of the airtight member attached to the inner side surface of the door roller installation groove of the door so that the airtight member protection projection first touches before being chewed or damaged by being caught between the narrow gap between the rail and the door, thereby being prevented from being chewed or damaged. In addition, the end of the airtight member protection projection is rounded, that is, formed in a curved shape to smoothly open and close the door by minimizing the friction when the inner surface of the door roller installation groove of the door abuts the rail.