Windows are also an important part of home decoration. Good windows are not only beautiful, generous, but also economical and durable. There are many types of windows on the market, so we have to understand different types of windows before choosing. , So what are the window classifications? How to install windows? The following is a detailed introduction.

Classification of windows:
1. Push-pull. (Including left and right push-pull type, up and down push-pull type), its advantages are simple, elegant and beautiful, large window width, large glass block, wide field of view, high lighting rate, convenient glass cleaning, flexible use, safe and reliable, long service life, in It opens in one plane, takes up less space, and is convenient to install screens. At present, the most widely used is the sliding window. The disadvantage is that the two windows cannot be opened at the same time, and only half of them can be opened at the most. The ventilation is relatively poor, and sometimes the sealing is also slightly poor.
2. Casement window. (Including internal opening type and external opening type), its advantages are large opening area, good ventilation, good sealing, sound insulation, heat preservation and excellent impermeability. It is convenient to clean the window with the inner opening, and it does not take up space when the outer opening is opened. The disadvantage is that the window is small and the view is not wide. The opening of the outer window takes up a space outside the wall, which is easy to be damaged when the wind blows; and the inner window needs to occupy part of the indoor space. The use of screens is not convenient. If the quality is not close enough, it may seep rain.
3. Suspended window. New forms developed on the basis of casement windows. It has two opening methods, that is, it can be opened flat, and it can be pushed open from the top. When the casement window is closed, push the upper part of the window outward to open a gap of about 10cm, that is to say, the window can be opened a little from above, the opened part is suspended in the air, and fixed to the window frame by hinges, etc. It is overhanging. Its advantage is that it can not only ventilate, but also ensure safety, because of the hinge, the window can only open a 10cm gap, can not reach out from the outside, especially suitable for use when no one is at home. Recently, this function has not only been limited to flat windows, but sliding windows can also be opened upside down.

How to install windows?
First, the main points of indoor window installation
1. Check the specifications and position of the fixing piece
The fixed piece is made of Q235 cold rolled steel plate, the surface should be treated with anticorrosion treatment, its thickness is not less than 1.5mm, and its width is not less than 15mm. The position of the fixing piece should be 150~200mm away from the window corner, middle vertical frame and middle horizontal frame, the distance between the fixing plates should not be less than 600mm, and the fixing piece should not be directly installed on the stop of the middle horizontal frame and middle vertical frame. It is not allowed to install a unidirectional fixing piece, and a bidirectional fixing piece should be installed according to the specifications to ensure a balanced force.
2. The window frame is fixed
When the window frame is installed in the opening, the upper and lower frame lines should be aligned with the center line of the opening. The four corners of the upper and lower frames of the window and the symmetrical positions of the middle and transverse frames should be temporarily fixed with wooden wedges and block plugs; when the length of the lower frame is greater than O.9m , The center of it should also be tightly plugged with wooden wedges or pads for temporary fixation. Then determine the installation position of the window frame in the thickness direction of the opening wall according to the design drawings, and adjust the verticality, horizontality and straight angle of the window frame, and the allowable deviation should comply with the relevant regulations.
3. Fixed door frame
Flat open doors without lower frame shall make the lower feet of the two frames lower than the ground elevation line, and the height difference shall be 30mm; flat open doors or sliding doors with lower frame shall make the lower frame lower than the ground elevation line, and the height difference shall be 10mm. During installation, measures to prevent deformation of the door frame should be taken, and then a fixing piece of the upper frame should be fixed to the wall, and the horizontality, verticality and straight angle of the door frame should be adjusted, and temporarily positioned with a wooden wedge. The allowable deviation should meet the relevant regulations. When doors and windows are fixed to the wall, the upper frame should be fixed first, and then the frame should be fixed.
The fixing method should meet the following requirements:
(1) The opening of the concrete wall should be fixed with shot nails or plastic expansion screws.
(2) The opening of the brick wall should be fixed with plastic expansion screws or cement nails, and should not be fixed at the brick joints.
(3) For the aerated concrete openings, wood screws should be used to fix the fixing piece to the pre-buried glued logs.
(4) The openings with embedded iron parts should be fixed by welding, or base holes can be made on the embedded parts according to the specifications of fasteners, and

then fixed with fasteners.
4. Filling treatment of window frames and openings
　　 The inner cavity of the gap between the door and window frame and the opening should be layered and filled with closed－cell foam plastic, expanded polystyrene and

other elastic materials. The packing should not be too tight. For projects with high requirements for thermal insulation and sound insulation, corresponding heat insulation and sound insulation materials should be used for packing. After filling, the wooden wedges or pads for temporary fixing are removed, and the gaps should also be filled with closed－cell elastic materials. Sealing is finally performed between the window frame and the opening with sealant. After installing the window sash, pay attention to check

whether the overlap amount of the window sash contained in the window frame meets the standard requirements. If there are hidden dangers to quality and safety, all the work must be reworked.