When the rainy season arrives, the old doors and windows have inconvenience to many families because they do not have a drainage function. The new plastic-steel window has a staggered design of the drainage trough and the air pressure balance hole to avoid direct entry of cold air and dust, and the drain hole part is equipped with a closed cover to prevent rainwater from flowing into the room from the hole.
Plan shopping guide: color pattern attached to the window
The window plays a key role in lighting, ventilation and heat preservation, and its quality cannot be ignored. There are currently three types of plastic-steel windows on the market: flat, overhang, and push-pull. In terms of price, the price of the sliding window attached to the screen window is relatively low, and the minimum is about 300 yuan per square meter; and due to the complexity of the accessories and installation, the price of the upper hanging window is the most expensive, and the imported brand is about 1,000 yuan. In color, in addition to ordinary white and brown, colored windows are not uncommon in the market. Some texture windows bring more personality to the buyers.
In addition, high-quality plastic steel doors and windows use excellent flame-retardant materials, do not support combustion, once the fire can self-extinguish; in addition, the interior is a closed multi-cavity hollow structure, which can reduce the noise by about 30 decibels; the gap between the doors and windows is soft. Quality PVC sealing strip, when closed, airtight and airtight. It is understood that good plastic steel doors and windows have a service life of up to 30 years.
Buying instructions: nuances to distinguish between good and bad
Be sure to go to the formal building materials market to buy plastic steel windows. The price difference of plastic-steel windows sold on the market is very large now. The double-layer glass-plastic steel window produced by a small processing factory is only sold for more than 200 yuan. It can also be installed at the above door and installed free of charge. In the formal market, the average double-glazed casement window is about 400 yuan per square meter. Some open-glass windows with insulating glass, plus screen windows and other costs, exceed 1,000 yuan per square meter. Among them, the technical content is very different. The processing equipment of the roadside stalls is simple, the precision and strength of the doors and windows cannot be guaranteed, and the quality of the profiled steel is inferior, even without the lining steel, and other accessories are also very poor. The formal brand plastic steel window in the formal building materials market is more secure in terms of profile quality.
Since the plastic steel windows on the market are mostly assembled windows, it is necessary to distinguish the quality of the doors and windows from the fine parts when purchasing. The appearance color of plastic steel doors and windows should be blue-white, the color is too white or gray, indicating that the stable components in the material are not enough, and it is easy to age and turn yellow; check whether the hardware is flexible and smooth; the auxiliary materials such as the bead and seal of plastic steel doors and windows It should be matched with the main profile; the cavity structure of the plastic steel window determines its thermal insulation and sound insulation effect; the drainage trough and the air pressure balance hole are processed in a staggered position to avoid the direct entry of cold air and dust, and the relatively tight plastic steel window drainage hole is assembled. Some parts are equipped with a closed cover to prevent rainwater from flowing into the room from the hole; the lower part of the sliding window frame should have an aluminum slide rail for easy replacement. In general, the double pulley is superior to the single pulley. Because the sealing strip is shorter than the life of the window; there should be a fixing piece in the middle of the sealing top of the sliding sash, which is the key to the sealing performance of the sliding window.
Installation Tip: first change the door and window and then decorate
During the decoration, since the window removal process will damage the inner and outer walls, it is best to replace the doors and windows first, and then proceed to the next renovation. Therefore, when you buy a house, you should look at the quality of the doors and windows, and specify which brand of profiles to use. If you are a buyer, don't be fooled by the vague concept of “quality steel doors and windows†in the book.
Before installing the plastic-steel window, make sure that the window is open inward or outward. Since the plastic-steel window needs to be punched for fixing during installation, it is impossible to re-install once the installation is completed. Therefore, you must carefully consider before installing. During the installation process, the horizontal and vertical alignment of the doors and windows should be supervised. The squeegee is filled between the window frame and the wall, and the inner and outer sides of the window frame must be sealed with silicon copper glue to prevent water seepage. After the installation is completed, the protective film must be removed, otherwise the life of the doors and windows will be reduced.
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