ALUMINUM LEFT-RIGHT DOUBLE SASH FOLDING GLASS WINDOW

Benefits of ALUMINUM LEFT-RIGHT DOUBLE SASH FOLDING GLASS WINDOW

Maximized Opening Area:The left-right double sashes adopt a folding and closing design. When opened, the two sashes can be fully folded and closed to one side (or both sides, depending on the design), with an opening area reaching 80%-90% of the total window opening (far exceeding the 50% opening rate of traditional sliding windows). This maximizes the introduction of outdoor light and natural wind, making spaces such as balconies and kitchens more transparent with the outdoor environment. It is particularly suitable for small apartments — avoiding the problem of traditional windows occupying window-side space when opened, and allowing more flexible furniture placement.

No Extra Space Occupation:When folded and closed, the two sashes fit closely together. It neither occupies indoor wall space (unlike casement windows that protrude outward/inward when opened) nor affects the activity areas of outdoor balconies or terraces. It can be installed in narrow balconies, compact kitchens, and other spaces without any pressure.

Multi-Layer Sealing for Anti-Penetration:EPDM (Ethylene Propylene Diene Monomer) sealing strips are used between the sashes and the frame, as well as between the sashes. Combined with precision hinges and locking structures, it can effectively block the infiltration of dust and rainwater after closing — preventing rainwater from backflowing into the room on rainy days and reducing dust entry on hazy days to keep the indoor space clean. At the same time, it can weaken outdoor medium and low-frequency noises, meeting the quiet needs of daily living.

Heat Insulation, Energy Saving and Reduced Energy Consumption:The frame mostly uses thickened aluminum alloy profiles (with a wall thickness of ≥1.2mm). Some models support matching with double-layer insulated glass (specification: 5+12A+5), which has a low thermal conductivity. It can block the entry of outdoor heat in summer and reduce the loss of indoor heat in winter. Compared with ordinary folding windows with single-layer glass, it can reduce the energy consumption of air conditioners/heating systems by 8%-12%, making it suitable for families or transitional spaces (such as sunrooms and enclosed balconies) that focus on energy conservation.

Smooth Folding and Easy Operation:Custom folding hinges (mostly made of stainless steel, which is rust-proof and wear-resistant) and precision rails are adopted. When folding, the sashes rotate flexibly without jamming or abnormal noise.

Strong Visual Integration:After folding and closing, the two sashes fit closely together. Combined with a narrow frame design, it can reduce the obstruction of the frame to the vision, making the window appear lighter and more minimalist. When fully opened and folded, it can achieve a “frameless” vision, which is especially suitable for installation in scenic balconies, homestay floor-to-ceiling windows, and other positions, maximizing the presentation of outdoor scenery and enhancing the overall texture of the space.

Common FAQ

Q: When the left-right double-sash folding window is fully opened, how much space will the two sashes occupy? Will it affect the use of the window-side area?

A: When fully opened, the two sashes will be folded and closed to one side (or both sides, depending on the design), and the overall occupied space is only the thickness of the overlapped double-sash profiles, which hardly takes up additional indoor or outdoor space. Furniture (such as balcony leisure chairs and kitchen storage racks) can be placed normally by the window, or a passage can be reserved. Unlike casement windows, it will not be restricted due to the sash protruding outward/inward.

Q: What about the sound insulation and waterproof effects of this folding window?

A: In terms of sound insulation, when matched with double-layer insulated glass (5+12A+5) and EPDM sealing strips, it can weaken the noise of street traffic and neighborhood activities, making it suitable for scenarios sensitive to noise. In terms of waterproofing, the rails adopt a height difference design and sash sealing strips, which can block the infiltration of rainwater and prevent backflow into the room on rainy days.

Q: Between folding windows and ordinary sliding windows, which is more suitable for balconies? What are the core differences between them?

A: The core differences lie in the opening area and space utilization: ① Opening area: The opening rate of folding windows reaches 80%-90%, which can maximize ventilation and lighting; the opening rate of sliding windows is only 50%, with one sash always fixed, which affects ventilation and vision. ② Space adaptability: Folding windows do not occupy space and are suitable for small balconies or scenarios where furniture needs to be placed by the window; sliding windows have rails that take up a certain width, and the fixed sash may block the vision. If the balcony focuses on “transparency + space flexibility”, folding windows are more suitable; if the budget is limited and there is no high requirement for the opening area, sliding windows can be an alternative.

Let’s take a closer look at the PAVIDA factory – where every detail in the production of aluminium windows and doors is of paramount importance. Our well-organized workshops, advanced machinery and highly skilled technicians work in harmony to transform high-quality aluminium into high-performance and aesthetically pleasing products, which fully demonstrates the professional strength of our factory as a reliable global manufacturer.