Doors and windows are indispensable in life. How is the quality of doors and windows themselves? There are certain specifications and standards in the door and window industry. Do you know these? The quality standards of doors and windows are mainly calculated from five aspects: sealing, anti-seepage performance, frame fan structure, thermal insulation performance, and safety technology.
1. Sealing
1). Edge sealing (adhesive angle): The seal should avoid corner joints, and the corner seal should be designed to be a 90-degree overall bonding angle.
2). Frame fan seal: The opening fan part is suitable for designing the main seal, fan pressure side, and frame pressure side strips respectively.
Five points to teach you how to judge the quality of doors and windows
2. Anti-seepage performance
1). The outer window must be equipped with a drain outlet, a drain outlet, and an exhaust outlet (air pressure balance hole) to discharge the accumulated water into the window frame fan. A buckle cover should be set outside the drain outlet to prevent strong winds from blowing rain and dust into the window frame.
2). The fracture zone adopts a C-type structure, which should be at the same level after being compounded with the internal and external aluminum materials to prevent water leakage in the insulation groove and prevent corrosion risks. At the same time, the length of the insulation groove is increased to improve artificial performance.
3). Door and window opening size: The structural opening reservation cannot be too large to prevent the risk of leakage due to difficult blocking.
4). Enterprise area: Due to special reasons, Changdong has a stone curtain wall with a large opening. The structural opening is recommended for the enterprise area, and the enterprise area should be poured at the same time as the concrete wall.
5). External window frame: It is recommended to use metal window frames for buildings with paint as the exterior wall material. The inside of the metal window frame should be pressed on the window frame, and the outside should protrude from the wall to make water drops.
6). Window frame and structural opening: The window frame must be installed on the vertical. For example, when installed on the outside, it should be placed 20 mm inward to prevent the window frame from being installed outside the structural shell due to structural construction errors, thereby leaking rainwater.
Five points to teach you how to judge the quality of doors and windows
3, frame fan structure
1). Angle group: Angle group is an important process related to the integrity of doors and windows.
2). Adhesive technology: Generally, the adhesive technology of corner code assembly should be used. Extrusion molding is prohibited when the window corner is not coated with adhesive.
3). Glue injection technology: The corner assembly can also adopt the technology of corner code + glue guide groove + glue injection hole + two-component glue injection + corner piece to ensure the strength requirements of the corners and ensure that the finished doors and windows are not deformed and displaced after transportation and installation.
4. Thermal insulation characteristics
1). Joint design of steel: The steel type should adopt a porous structure to reduce heat loss. At the same time, the outer window insulation components form a coplanar and integral insulation surface, eliminate cold bridges, and block heat loss channels. 2). Insulation tape must be installed in the glass installation groove. Increase the number of air rifling, reduce heat loss around the insulating glass and between the steel section, and improve the insulation effect of the entire window.
3）. The electric fan should adopt a T-shaped fracture belt design. The electric fan fracture belt is designed to be T-shaped and overlaps with the middle rubber band. Realize the hot and cold zones at the connection of the electric fan. It is forbidden to directly stick the middle rubber strip on the aluminum profile of the fan.
4）. The insulation strip should use polyamide 66 (polyamide 66, commonly known as nylon 66).
5）. Glass temperature change zone: A temperature change should be set around the double-layer hollow glass cavity to block the glass cavity cooling channel.
6）. In areas with high thermal conductivity, according to the project positioning, an insulation layer can be added to the steel insulation layer to meet the K value requirements.
7）. External door: The external door leading to the garden on the first floor of the residential building should be set with a threshold. If the threshold is not set, the lower end of the door should be closed with a brush. The residents on the first floor of the residential building will open the double external door leading to the garden flat. After closing, the two will coincide. It is forbidden to close the joint with a brush in the middle.
Five points to teach you how to judge the quality of doors and windows
5. Safety technology
1）. Glass buckle: The glass buckle should be set on the indoor side, and the inner window is prohibited from flipping to the outer window. The buckle should be installed on the outdoor side to ensure the requirements of anti-theft, safety, and glass replacement, leaving no risk of leakage.
2）. Snapshot: In order to improve the wind pressure strength and anti-theft performance of the external window, the external window should use a multi-point lock. The snapshot settings must meet the design and installation manual requirements of the hardware manufacturer.
3）. The size of the unit entrance door should not be too large. Ensure the reliability of hardware accessories such as burials to avoid safety accidents.
Whether you choose a brand of doors and windows to join, or choose the doors and windows used in your own home, you can compare them according to the above quality standards to see if the doors and windows you choose meet the requirements. Don’t just choose them at random because you find it troublesome, or listen to the opinions of others. If you don’t make a comparison when choosing doors and windows, if the doors and windows do not meet the standards in the end, it will cause harm to yourself.
