The main materials used for doors and windows generally include three aspects: aluminum profiles, glass, and hardware. The state has certain standards for the thickness, strength and oxide film of aluminum profiles used in aluminum alloy doors and windows.

->The wall thickness of the aluminum profile of the aluminum alloy window should be no less than 1.2mm, and the oxide film thickness should reach 10 microns.

->Considering the safety and durability of doors and windows, tempered glass is better than ordinary glass, and it is best to choose energy-saving glass.

->Stainless steel hardware accessories (such as screws, hinges, etc.) are better than aluminum accessories. Here are five common doors and windows:

1. Casement Window

Good ventilation allows the room to naturally circulate with natural air, making the indoor air fresh and eliminating the possibility of rainwater entering the room. Fresh air undoubtedly creates a comfortable living environment for people.

Safety is the various functions of the linked hardware and handles arranged around the window sash in the room. When the window sash is closed, the surrounding areas are fixed on the window frame, so the safety and anti-theft performance are excellent.

Good sealing and thermal insulation performance. Multi-point locking around the window sash ensures the sealing and thermal insulation effects of doors and windows.

The disadvantage is that the window width is small and the field of view is not wide. Opening an outward-opening window takes up a space outside the wall and is easily damaged in strong winds; an inward-opening window takes up part of the indoor space, making it inconvenient to use screens and curtains when opening the windows. 

2. Sliding Window 

Advantages of sliding windows: simple and beautiful, large window width, large glass block, wide field of vision, high lighting rate, easy glass cleaning, flexible use, safe and reliable, long service life, open in one plane, taking up less space, easy to install screen windows wait.

Disadvantages: The two windows cannot be opened at the same time, they can only be opened half way at most, and the ventilation is relatively poor; sometimes the sealing is also slightly poor.

3. Awning Window

Top-hung windows are a type of aluminum alloy and plastic steel windows that appeared later. It is a new form developed on the basis of casement windows. It has two opening methods, which can be opened flatly or pushed open from the top. It not only allows ventilation, but also ensures safety. Because of the hinge, the window can only open a ten centimeter gap and cannot reach in from the outside. It is especially suitable for use when no one is at home.

4. Outward-facing windows (bottom-hung windows)

That is, the bottom-hung window is a kind of aluminum alloy and plastic steel window that appeared later. It can be pushed open from below. When the casement window is closed, push the lower part of the window outward to open a gap of about ten centimeters. That is to say, the window can be opened a little from the bottom and the open part hangs downward in the air and is connected and fixed with the window frame through hinges. Therefore it is called bottom suspension.

5. European style double windows

European-style split windows are doors and windows decorated in European style. According to different regional cultures, they can be divided into Nordic, simple European and traditional European styles. Among them, the pastoral style became popular in Europe in the 17th century, emphasizing changes in linear flow and gorgeous colors. The other is the Rococo style, which loves to be decorated with light and slender curves. This needs to be decorated to match the overall style of the home.