When you purchase upvc profile double hung  window 006, you purchase directly from the factory. PVC double hung windows feature two operable sashes that slide vertically, allowing flexible ventilation from the top or bottom. Compared with sliding or fixed windows, they provide better airflow control and easier cleaning, as both sashes tilt inward. PVC material offers excellent thermal insulation, long-term durability, and resistance to moisture, corrosion, and UV exposure, making maintenance minimal and ensuring stable performance in various climates. series: 82 series PVC Color: white opening style: Double Hung Glass: 3mm+12A+3mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.21 Visible Transmittance: 0.41 Air Leakage: 0.15

Xiamen KDSBuilding’s PVC sliding doors are engineered with multi-chamber profiles and reinforced with galvanized steel for added strength and long-term stability. Double or triple-glazed glass options enhance thermal performance and contribute to energy efficiency, helping to maintain comfortable indoor temperatures and reduce energy costs. These doors also feature quality weather seals that provide protection against wind, rain, and dust infiltration. series: 140 series PVC opening style: sliding Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23

Rubber strip has been used in recent years, EPDM, which can ensure better elasticity and anti-aging performance, but the glass groove rainwater with rubber strip will still leak into it, so we need to milling drainage holes and slots.

The water tightness of aluminum window is related to the strength of aluminum alloy door and window members, rubber strip section and material, drainage system, window structure design, etc.

Kdsbuilding is a comprehensive company integrating the development, production and sales of aluminum alloy decorative doors and windows

Light weight and high tensile strength: Although the material of aluminum alloy doors and windows is relatively light, its tensile strength is high

In recent years, both aluminum alloy doors and windows and broken bridge aluminum alloy doors and windows are very popular with the market and consumers because of their long service life and beautiful appearance.

Here are wood color aluminium window for building materials market. And for window is 1.2-1.4 mm, for doors is 1.4-2.0 mm, special profile thickness is available.