Need to pay attention to many issues when choosing doors and windows?

 1. The appearance should be beautiful: the surface paint film of wooden doors and windows should be smooth and bright, without flow, bubbles, wrinkles and other quality defects, without corrosion points, dead knots, and broken; the wood used for the door and window cover should be the same as the wood of the doors and windows. The color is coordinated, the color difference between the veneer and the wood line cannot be large, and the tree species should be the same.
2. The door and window sash should be square, not warped and deformed, and consistent with the door and window frame: If the gap between the door and window sash and the frame is large, it is mainly because the planing and repairing is not correct during installation or the door and window frame is not perpendicular to the ground. Re-plan and repair under the bottom; if the door and window frame is not vertical, straighten the gasket in the frame plate.
3. The hinges should be positioned accurately and installed firmly: If the hinges are not upright, the door and window sashes will not match the frame cover, and the doors and windows will not switch smoothly. You can first unscrew a screw on each hinge, then adjust the fit between the door and window sash and the frame, and then tighten all the screws after the adjustment is correct. If the hinge screw is short, or when the screw is screwed in, the screw is not screwed, or the screw is skewed, it will cause the door and window sash to go out. The screws should be replaced with suitable screws. The screws must be straight when they are installed. The screws should be screwed in 1/3 first, and the rest should be screwed in.
4. The door lock must be opened and locked smoothly, and the two parts of the door leaf and the door frame must be the same: the lock is not installed properly, which will cause the door leaf to open and close. The bolt plate should be removed, the tongue groove should be repaired with a chisel, and the position of the bolt mouth of the door frame should be adjusted before installation. In addition, the opening direction of the door must also meet the requirements.
5. There must be a base material inside the door and window cover: when the window cover is made of blockboard or density board, the base board should be fixed to the base keel of the window frame first, and then the line should be nailed: the door cover should be made of wood and planed. , Plane straight, then assemble and form to install on the wall, and then cover the base board and veneer. Knock the side panels of the door and window cover with your hands. If there is a hollow drum sound, it means that the bottom layer is not padded with blockboard and other basic materials, which should be removed and redone. China Doors and Windows.com believes that when buying doors and windows, not only should they look good, but also check whether the edges and corners are square and whether the basic materials are firm and so on from different angles. Only when everything is comprehensive at the time of purchase, installation will be handy.

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Compared with wooden doors and windows, steel doors and windows, aluminum alloy doors and windows have the following characteristics

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Classification and structure of doors

 1. Classification of doors: According to the position of the door in the building: inner door and outer door. According to the function of the door: general door and special door. According to the material of the door frame: wooden door, aluminum alloy door, plastic steel door, color panel door, glass steel door, steel door, etc. According to the opening method of the door leaf: swing door, spring door, sliding door, folding door, revolving door, rolling door, lift door, etc. 2. Door size requirements: The size of the door refers to the height and width of the door opening, which should meet the requirements for evacuation of people and the transportation of furniture and equipment, and should meet the requirements of the "Building Modulus Coordination Standard". Under normal circumstances, the height of the door is guaranteed to be no less than 2000 mm. When the upper part is set up, the height should be increased by 300~600mm. The width of the door should be sufficient for
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