Casement Windows advantage is the large open area, good aeration, good sealing, sound insulation, thermal insulation, impermeability is fine. -Open window cleaning easy when opening an outer space. Downside is Windows little view does not open. Outside the window open to taking up outside the walls of a room, during the Gale the vulnerable and opening the window is also occupied part of the indoor space, easy to use screens or, use when opening the window screens and curtains is not convenient, if quality is not passed, it may seep rain. Swing single-swing doors that open and double swing doors: single door only a door and double door with two doors. Swing doors are divided into a one-way opening and bi-directional opening. Uni-directional opening can only be opened in one direction (only to push or pull) the bidirectional opened is doors can open in both directions (such as spring). Swing is relative to the open method, as the door moves to open, upturned, shutter lift, vertical lift