Technical Specifications – uPVC Doors & Windows

Excellent Heat Insulation & Energy Savings

In an air-conditioned building, windows with low thermal conductive material can reduce energy loss by up to 37%. The thermal conductivity of PVC (0.13 kcal/m²·hr·°C) is 1/1250 of aluminum (175 kcal/m²·hr·°C). PVC-U windows (1.3 kcal/m²·hr·°C) outperform aluminum sliding windows (16.3 kcal/m²·hr·°C). For example, a 6 mm single-pane PVC-U window has a K-value of 4.5 kcal/m²·hr·°C, compared to 7.6 kcal/m²·hr·°C for aluminum. This results in over 30% energy savings, making PVC-U the best energy-saving window solution.

Excellent Sound Proofing

PVC-U window materials with multi-chambered profiles and tight seals achieve significant noise reduction. - 22–25 dB in 6 mm glazing - 30 dB in double-glazing This makes them ideal for hospitals, schools, and offices, providing tranquility and protection from external noise.

Low Thermal Expansion

With a coefficient of thermal expansion of 3×10⁻⁵/°C/cm, PVC-U windows remain stable in extreme weather. Example: At 45°C, a 1.5 m profile expands only 0.36 mm. At winter lows, expansion is just 0.9 mm.

Electrical Insulation

PVC-U has a high electrical resistance (>10¹⁵ ohms·cm), making it completely safe from electrical conductivity and maintenance-free.

Minimum Air Filtration

Impervious weather-stripping ensures maximum sealing. - Sliding windows: 8 m³/hm² - Casement windows: 2 m³/hm² This reduces air infiltration, increasing AC efficiency and saving energy.

Excellent Fire Resistance

PVC-U is a self-extinguishing material (DIN 4102 standard). Zurich Fire Brigade testing (1973) confirmed PVC-U windows resisted ignition and met safety standards for high-rise buildings.

High Precision Manufacturing

PVC-U materials are precisely processed with dimensional tolerances of ±3 mm in length and width.

Attractive Appearance

Smooth surfaces with welded corners and optional finishes (laminated or painted) provide a superior and customizable aesthetic.

Excellent Weather Resistance

Special UV-resistant formulation ensures long-term durability against sun, storms, humidity, and dryness. No brittling or quality deterioration over time.

Excellent Water Resistance

PVC-U absorbs less than 0.1% water. Unique weep holes and weather-stripping prevent leaks. Tested under 10 minutes, 4 liters/min·m² wind load with no leakage.

Corrosion Resistance

Resistant to acids, alkalis, gases, and salts. Proven effective even in harsh desert and industrial conditions (e.g., breweries, textiles, paper mills).

Impact Resistance

Specially designed profiles withstand 3 kg impact at 1m height at 23°C, ensuring durability in demanding environments.