Doors and windows, guarding the safety of the living room, need to experience wind, sun and rain for a long time, so they have high requirements on the quality of craftsmanship. In recent years, due to the high strength, toughness, good mechanical properties, corrosion resistance, wear resistance, non-deformation, durability and other characteristics of aluminum alloy profiles, they are more and more favored by consumers and are widely used in home decoration.
As the so-called "experts watch the door, laymen watch the fun", for ordinary people, buying doors and windows is indeed a headache. The door and window market is mixed, and the variety is dizzying, but the quality of the products is mixed. Compared with the online comparison, after visiting the physical store, it is impossible to start, and it is difficult to choose.
Door and window purchase skills
When buying aluminum alloy doors and windows, in addition to paying attention to the values of the five major properties of the doors and windows, such as water tightness, air tightness, thermal insulation, sound insulation, and wind pressure resistance, the key is to look at the materials used for the doors and windows.
Appearance should be reasonable
Nowadays, appearance is "justice". As the first door and window in the home, it is the first impression people have on home improvement design. The doors and windows that are beautifully designed and matched with the interior style can add color to the room.
Door and window profiles should be qualified
When choosing doors and windows, you must choose broken bridge aluminum doors and windows, which have better thermal insulation and sound insulation performance than ordinary doors and windows. When purchasing aluminum profiles for broken bridges, we must pay attention to the quality of the profiles. High-quality profiles have a glossy surface, no aluminum chips, burrs, etc., and the percussion sound is crisp; inferior aluminum materials contain more impurities, and the cross-section is dim, The percussion sound was dull.
The wall thickness of the profile should be aligned with the standard
The wall thickness of aluminum is directly related to the sturdiness and durability of doors and windows. In order to reduce costs, many businesses use aluminum alloy profiles with wall thicknesses that do not meet national standards to reduce the wind pressure resistance of aluminum alloy doors and windows. In 2021, the country's newly revised "Standard for Aluminum Alloy Doors and Windows (GB/T 8478-2020)" stipulates that the wall thickness standard of aluminum alloy inner windows is 1.4mm, and the wall thickness standard of outer windows is increased to 1.8mm. When choosing alloy windows, we must pay attention to choosing door and window products that meet national standards.
Glass is impact resistant
When purchasing doors and windows, glass is the most easily overlooked part. Glass occupies the largest area of windows, and its safety performance is also related to the safety of windows. When buying doors and windows, don’t forget to pay attention to the quality of door and window glass. The automotive-grade tempered glass that has passed the 3C certification has high safety performance, the standard thickness is more than 5mm, the impact resistance is 3-5 times that of ordinary glass, strong wind pressure resistance, not easy to break , the permeability is strong.
Hardware accessories should be stable
Hardware accessories are the key to affecting the experience of doors and windows, and directly affect the service life of doors and windows. Inferior hardware accessories can easily lead to problems such as door and window falling off, unsmooth switch, poor sealing performance, etc. For door and window hardware accessories, screws, hinges and handles, it is best to use 304 stainless steel for longer durability.
Insulation strip to PA66 nylon strip
Insulation strip is an important part of broken bridge aluminum doors and windows. It not only affects the quality of the composite profile, but also plays a vital role in the water tightness, air tightness and wind pressure resistance of the doors and windows. At present, high-quality thermal insulation strips on the market generally use PA66 nylon strips (nylon 66+25% glass fiber), which have high connection strength, good thermal insulation, good weather resistance, high temperature resistance, and corrosion resistance; inferior doors and windows generally The use of PVC insulation strips has low strength and short life, and is prone to problems such as gaps, hardening, and aging.
*The surface of the PA66 nylon strip is a frosted texture, and the color is black; the PVC insulation strip looks smooth, smooth, and the color is white.
Sealing strips are critical
In the actual production process of doors and windows, the investment of sealing strips is very small, but it plays a huge role, which is related to the performance of doors and windows such as sound insulation, dust prevention, and warmth. Generally, there are PVC, modified PVC, EPDM and other materials. The first choice on the market is EPDM, which has the characteristics of oxidation resistance, ozone resistance and corrosion resistance. Under normal circumstances, it will have a little alcohol taste. In the high temperature environment, it is not easy to yellow and oil seepage, and it is more durable than PVC.
Doors and windows are a decoration project with extremely high requirements on the service life. It is the norm to use them for 20 to 30 years. When purchasing doors and windows, choosing a big brand can help you feel more at ease.
Door and window profiles Guangdong spot aluminum
