double hung windows are a common type of indoor door and window products. They have excellent energy-saving and heat-insulating, dust-proof and noise-reducing, and excellent wind pressure resistance. They have beautiful lines and a wide viewing angle. They will not collide with the human body when opened. The frame and sash are wrapped, so there is no risk of the sash falling outwards. They have excellent safety coefficients and many other advantages. They are widely used in high-rise buildings in North America.

Advantages of sliding windows Exquisite facade, reasonable opening and ventilation methods Traditional European sliding windows open left and right, while sliding windows open vertically up and down. Normally, whether it is a sliding window or a sliding window, the opening area will not exceed 1/2, but after changing from sliding left and right to lifting up and down, not only is the opening method more scientific and reasonable, but the human comfort is also greatly improved. Because, in my country's building openings, the height from the ground is generally 900-1000mm. If the height of the sliding window is designed to be 1600-1800mm, the opening height of 1/2 is 800-900mm, which is close to the height of the human body, and the ventilation and comfort are greatly enhanced.

The upper and lower sliding windows have more design flexibility in the slenderness ratio of height to width, and the facade appears beautiful and light. The upper and lower window sashes can be divided by different lines. The window frame is simple and the lines are delicate. Ventilation and lighting are equally important without visual obstruction. The upper and lower window sashes can be adjusted according to the ventilation needs. Because they are not casement or sliding, the setting of screens is also relatively easy, and it is also easy to escape in an emergency. If designed as a continuous lifting window, you can fully enjoy natural ventilation. It is another choice for designers between casement windows and sliding windows.

Fixed windows are windows that are usually made of glass directly inlaid on the window frame or the window sash is fixed on the window frame and cannot be opened. They are only used for lighting and viewing. They are usually used for lighting windows in corridors, stairwells and certain parts of general windows.

The main body of the heat-insulating aluminum alloy is made of aluminum, and a plastic profile cavity is used as the heat-insulating material in the middle of the profile. This innovative structural design takes into account the advantages of plastic and aluminum alloy materials, while meeting various requirements for decorative effect, strength and aging resistance of doors and windows. The thermally insulated broken bridge aluminum-plastic profile can realize the three-way sealing structure of doors and windows, reasonably separate the water vapor cavity, successfully achieve equal pressure balance of air and water, and significantly improve the water and air tightness of doors and windows. The air tightness of insulated aluminum doors and windows is better than that of any aluminum or plastic windows. It can ensure that indoor window sills and floors in areas with strong wind and sand are dust-free; it can ensure that residents 50 meters on both sides of the highway are not disturbed by noise; and the thermal conductivity is better than Non-insulated aluminum alloy doors and windows reduce the cost by 40 to 70%.

High quality aluminum commercial window price will work hard on the sound insulation performance of windows .

When you purchase upvc profile double hung  window 002-2, you purchase directly from the factory.

VC sliding window is a modern, space-efficient window system widely used in residential and commercial buildings. Manufactured from polyvinyl chloride (PVC), this type of window combines durability, energy efficiency, and aesthetic appeal. The sliding mechanism operates horizontally along a track, making it ideal for areas with limited interior or exterior space where traditional casement windows might be obstructed. PVC sliding windows are known for their low maintenance requirements, excellent insulation properties, and resistance to moisture, termites, and corrosion. The multi-chambered profile enhances thermal and sound insulation, making them suitable for all climates. The double-glazed glass option further improves energy performance by reducing heat transfer and outside noise. Xiamen KDSBuilding’s PVC sliding windows are crafted with high-precision corner welding, reinforced steel inside frames, and optional security locking systems for added strength and safety. These windows are available in various configurations, including two-track, three-track, and even multi-panel designs, offering design flexibility for large openings and panoramic views. Easy to operate and clean, PVC sliding windows are a practical and stylish solution for modern architecture. Their sleek appearance, coupled with superior performance, makes them a long-lasting and cost-effective choice for any property.