Landsharp Aluminum Single Double Hung Window Sliding Sash Triple Glazed Windows

The structural design is firm, the wind pressure strength is far better than the plastic steel Windows and ordinary aluminum alloy Windows, can withstand high wind pressure, to ensure the safety performance of doors and Windows in wind and rain weather, especially suitable for coastal cities and other countries with large wind.

High-quality Sash windows feature a four-side compression sealing design. When the window sash is closed, it is firmly pressed against the surrounding sealing strips on the window frame. Compared to conventional Sash windows that rely on lateral sealing via wool strips, this design offers superior air tightness and water tightness, enabling more effective prevention of air and rainwater infiltration. As a result, it enhances thermal insulation performance, reduces energy consumption, and provides improved wind pressure resistance.

If you want to customize different sizes and materials, we can provide a customization service for you with a minimum order quantity of just 1.

Thermal insulation to reduce heat conduction: The use of thermal insulation broken bridge aluminum alloy profiles can effectively reduce the heat conducted through the doors and Windows, so that the indoor temperature is more stable, warm in winter and cool in summer.

Energy saving: In winter, a window frame with insulation strips can reduce the heat lost through the window frame by 1/3; In summer, it can reduce energy loss more, reduce heating and cooling costs, in line with the concept of energy conservation and environmental protection.

U Value ≤ 2.2 W/(㎡·K)

The three-layer insulating low-e glass and our whole welding technology enhance the integrity of the frame and reduce heat dissipation from the seams.

Corrosion resistance: Passed the 240-hour neutral salt spray test, suitable for high-humidity coastal areas.

Weather resistance: After 4000 hours of QUV accelerated aging test, the light retention rate is over 90%, and the color stability far exceeds that of ordinary paint (no fading or yellowing for 5-10 years).

AS2047 - Australian window performance standard, UL - American product safety certification, ISO9001 - international quality management system certification, and NFRC - American window and door energy efficiency rating standard. Our products can meet your market demands.

These landsharp projects show that our doors and Windows not only have a wide influence in the domestic market, but also have achieved remarkable results in the international market.

We are not only manufacturers but also active participants in the global building materials industry. Our presence is frequently seen at leading international exhibitions, including the National Building Materials Exhibition in the United States and Australia’s Designbuild. By engaging directly with end markets, we continuously gain insights into the distinct requirements of customers in North America and Australia regarding energy efficiency, safety, and design aesthetics. This enables us to ensure that our products remain aligned with international trends and comply with prevailing standards.