Pay attention to buying doors and windows:
1. During decoration, because the process of window removal will damage the indoor and outdoor walls, it is better to replace the doors and windows first, and then carry out the next decoration. The owner should clearly choose which brand of profile, because the quality of the profile will determine the grade, sealing performance, aging resistance and other issues of the whole door and window, buyers should not be fooled by the vague concept of "cheap plastic doors and windows" in the market.
2. When purchasing, you must go to the formal building materials market. The processing equipment of small stalls on the roadside is crude, and the precision and strength cannot be guaranteed at all. Especially the plastic doors and windows made by them are of inferior quality in the inner lined steel, not even lined steel, and other accessories are also very poor.
3. The appearance color of plastic doors and windows should be bluish-white. The color is too white or gray, indicating that the stable ingredients in the material are not enough, and it is easy to age and turn yellow for a long time.
4. Check whether the hardware is flexible and smooth.
5. Sliding window the lower part of the window frame should have aluminum slide rail, which is convenient for its replacement.
6. Casement window sealing strip should be freely replaced, because the sealing strip has a shorter life than the window.
7. There should be a fixed piece in the middle of the sealing sliding window of Casement and wool tops, which is the key to the sealing performance of sliding window.
8. During the installation process, the horizontal direction and vertical direction correction of doors and windows should be supervised. Styrofoam is applied between the window frame and the wall to fill, and the window frame inner and outer sides must be sealed with silicon copper glue or sealant to prevent water seepage. After installation, the protective film must be removed, otherwise the service life of doors and windows will be reduced.
9. To buy products, besides quality and brand, we also need to know something about after-sales service, because everything has problems.
10. The appearance of doors and windows should be beautiful
The paint film on the surface of wooden doors and windows should be smooth and bright, without quality defects such as falling, bubbles, wrinkles, etc., without corrosion points, sound knot, and breakage. The wood used for covering window and door sets should be the same as the wood of doors and windows fan, the color is coordinated. The color difference between trim board and Wood lines cannot be large, and the tree species should be the same.
11. Doors and windows must be square and cannot be warped and deformed, which is consistent with the door and window frame.
If the gap between the door casement and the frame is large, it is mainly because the planing is not fixed during installation or the door and window frame is not perpendicular to the ground, you can remove the door casement and re-planing, if the door and window frame are not vertical, the gasket inside the frame plate should be straight.
12. Hinge should be located accurately and installed firmly
If the hinge is not straight, the doors and windows will not match the frame cover and the door and window switch will not be smooth. You can twist a screw on each hinge first, then adjust the consistency between the door and window fan and the frame, adjust the repair and then tighten all the screws. If the hinge screw is short, or the hinge screw is nailed in at screw tightening, the screw is not twisted, or the screw is inclined, it will cause the door and window fan to go around. The appropriate screws should be replaced. When the screws are installed, they must be straight. The screws should be nailed into 1/3 first and the rest should be screwed in.
What should I pay attention to when buying doors and windows
1. Open and lock the door lock smoothly
The two parts locked on the door leaf and the door frame should be consistent. If the lock is not properly installed, the door leaf cannot be switched freely. Remove the bolt plate, repair the tongue groove with chisel, adjust the position of the bolt mouth of the door frame, and then install it. In addition, the opening direction of the door should also meet the requirements.
2. There should be basic materials in window and door sets
When window frame is made of thin wood board or density plate, the basal plate should be fixed on the base keel of the window frame first, and then the lines should be nailed. Door set should be made of wood. After the frame is made, it should be planed and planed straight, then it is assembled and installed on the wall, covering basal plate and trim board. Tap the window and door sets side panel by hand. If a Air Force Drum Corps sound is made, it means that the bottom layer does not have base plate such as thin wood board, which should be removed and redone.
From Sohu:
80% of the five precautions for buying aluminum alloy doors and windows are not mastered.
The market of aluminum alloy doors and windows is getting bigger and bigger. Now many buildings use aluminum alloy doors and windows. Therefore, learning to judge the quality of aluminum alloy materials has become a necessary knowledge for consumers.
How to judge the advantages and disadvantages of aluminum alloy doors and windows? Whether it is aluminum alloy inner door (including partition door) or aluminium windows, decoration owners must pay attention to the following points when purchasing such products:
First: Materials
The main materials for aluminum alloy doors and windows generally include three aspects: aluminum profiles, glass and hardware. When purchasing products, owners often pay more attention to the thickness of aluminum profiles and glass, but the requirements for hardware are not very high, this is incomplete. In fact, the national requirements for aluminum alloy doors and windows have certain standards. The thickness, strength and oxide film of aluminum profiles used for high-quality aluminum alloy doors and windows generally meet the national standards. For example, relevant national regulations require that the wall thickness of aluminum profiles for aluminum alloy doors and windows should be no less than 1.2mm, oxide film thickness should reach 10 micron. Tempered glass is better than ordinary glass. If the safety and durability of doors and windows are considered, stainless steel hardware accessories (such as screws, hinges, handles, etc.) are better than aluminum accessories, however, it is better to choose products made of POM material for pulleys, because such products have higher strength and wear resistance, and are smooth and not easy to break during use. You know, door and window damage usually starts from door and window accessories!
Second: processing
With good materials, the next step is the processing of doors and windows. Because the technical content of aluminum alloy doors and windows is not high and the degree of mechanization is not high at present, most of them still depend on the manual operation of installation workers, which requires operators to have good product quality awareness. It is very important to strengthen the proficiency and product awareness of operators in the production process. High-quality aluminum alloy doors and windows, finely processed, smooth tangent and consistent angle (the main frame material is usually 45 degrees or 90 degrees), there should be no obvious gap in the splicing process, good sealing performance and smooth switch. Poor quality aluminum alloy doors and windows, especially aluminum alloy outdoor window products, if the processing is not qualified, there will be sealing problems, not only air leakage and rain leakage, but also under the action of strong wind and large external force, Glass will burst, the phenomenon of falling off, thus causing loss of property and even injury to the owners.
Third: appearance
Owners buy aluminum alloy doors and windows products, usually pay great attention to the appearance of the product and the decorative pattern of glass, but often despise the composite film on the surface of aluminum alloy doors and windows. This composite film is formed by artificial oxide film coloring and has corrosion resistance, wear resistance, high gloss, and a certain fire resistance, so when choosing aluminum alloy doors and windows products, more similar products should be compared. In the art of glazing, it varies from person to person, and different owners choose according to their own preferences.
Fourth: Price
Since the price of aluminum alloy doors and windows is directly related to the price of aluminum ingot, the price of aluminum alloy doors and windows is relatively stable in a certain period. Under normal circumstances, the price of high-quality aluminum alloy is 30% higher than that of inferior aluminum alloy doors and windows. Inferior aluminum alloy doors and windows usually adopt recycled aluminum extruded aluminum profiles containing a large amount of impurities, and some of the aluminum profiles used have a wall thickness of only 0.6-0.8mm, both tensile strength and yield are much lower than the relevant national regulations. This kind of aluminum alloy doors and windows, especially aluminum alloy outdoor windows, are not safe, therefore, owners should never underestimate the personal safety of themselves and others for a short time when purchasing products.
Fifth: performance
The performance of aluminum alloy doors and windows has different emphasis due to different application scope, but usually the following aspects should be considered: strength, which is mainly reflected in the material selection of aluminum alloy doors and windows profiles, whether he can withstand ultra-high pressure; Air tightness is mainly reflected in the structure of doors and windows, whether the inner fan of doors and windows is tight with the outer frame structure, and whether the aluminum alloy outdoor windows are tight and airtight; Water tightness, the main assessment is whether there is water accumulation and leakage in aluminum alloy doors and windows; The sound insulation mainly depends on the sound insulation effect of hollow glass and other special sound insulation and airtight strip structures, as well as the opening and closing force, heat insulation, nylon guide wheel durability, open locking durability and other door and window accessories durability.
