Home decoration can be costly, and windows are often one of the biggest expenses. However, many consumers lack knowledge about window materials and their performance. As a result, some end up purchasing flashy but low-quality windows that don’t last. The question is: how to choose the right window? Let’s hear what experts have to say.
**Author's Investigation**
**Many Issues with Street Shop Products**
Currently, the most common types of windows in Beijing are made from plastic steel and aluminum alloy. In terms of opening mechanisms, they are mainly sliding or pivot-style. On average, plastic steel windows cost over 300 yuan, while aluminum alloy windows are more expensive.
During my visit to several formal building material markets, I noticed that the window frames were well-constructed, with no visible scratches or cracks, and the hardware was sturdy. However, in small shops on the street, the quality of the windows was much lower. They lacked proper quality and safety certifications, and the color of the plastic steel was often yellowish white—unusual, as genuine plastic steel should be blue-white. Experts warn that this discoloration indicates the use of cheap additives, which reduces the strength and lifespan of the product.
**Consumers Prefer Domestic Brands**
I observed that domestic and imported window brands differ significantly in price. A salesperson from an imported brand mentioned that their raw materials come from Germany, and the hardware alone costs between 300 and 400 yuan. Many consumers I spoke to said they wouldn’t go for such expensive options. “The same material and style, but the domestic version is cheaper. I can live with that,†one customer said. Others agreed, believing that imported windows are too pricey and not worth the extra cost.
**Expert Advice: Choose Wisely**
Wang Wei, Deputy Secretary-General of the Beijing Construction Hardware Door and Window Industry Association, advised consumers to prioritize well-known brands. It’s important to check if the manufacturer has a valid production license and if the product carries the “QS†mark and environmental certification.
Before installation, make sure the window frame is well-made, the joints are secure, the glass is intact, and there are no obvious deformations. Check that the handle and metal parts are firm, and ensure that the surface is smooth without rough edges. Also, verify that the gap between double-glazed units is at least 8mm and that the drainage holes are not blocked. A strong smell from the sealant strip may indicate poor quality.
After installation, check for any deformation in the window structure, ensure the sash moves smoothly, and confirm that the window is securely attached to the wall. Don’t forget to remove the protective film from the window surface promptly.
Wang also suggested that households on floors above seven avoid outward-opening windows, as wind could potentially damage the sash.
**Energy-Efficient Windows Are a Must**
When choosing windows, experts recommend selecting energy-efficient models. These windows help reduce energy costs by keeping heat out in summer and retaining warmth in winter. According to Wang, energy-saving windows can raise indoor temperatures by about 3°C during the heating season, offering greater comfort and long-term savings.
**Float Glass Offers Better Performance**
In addition to choosing the right window type, it’s essential to select high-quality glass. Most reputable manufacturers use float glass or low-emissivity (low-E) coated glass. Float glass provides better insulation, light transmission, and clarity compared to regular flat glass. Low-E glass offers superior insulation, UV protection, and energy efficiency. When replacing your windows, consider using these types of glass for optimal performance.
**Shopping Tips: Compare Prices**
While visiting different building material markets, I noticed that prices for the same brand varied widely. For example, a mid-to-high-end market listed a window at over 1,000 yuan, while a lower-end market offered the same model at half the price. To avoid overspending, it’s wise to compare prices across different stores before making a purchase.
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