K5N Weatherproof Double-Glazed Thermal Break Casement Windows for Home
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K5N Weatherproof Double-Glazed Thermal Break Casement Windows for Home

Wall thickness:1.8mm
Open fan size & weight
Width:450mm≥850mm
Weight:≤70KG
Height:≥1450mm
Hardware brand:SUNGYE
Glass configuration:5G+18A+5G
Frame width:60.5mm
Sash width:80mm
U-Factor(u.s/1-P):0.26
Solar Heat Gain Coefficirnt:0.32
Visible Transmittance:0.53
Condensation Resistance:70
Sir Infiltration(cfm/ft2):0.012
Availability:
Quantity:
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  • K5N

  • SUNGYE


Product Overview


The Wind Rain Proof Tilt and Turn Window Energy Efficient is a marvel of weather-resistant engineering, designed to thrive in the harshest environmental conditions. Whether installed in coastal homes battered by typhoons, mountain lodges exposed to blizzards, or urban high-rises facing relentless wind gusts, these windows deliver unwavering performance. Their standout feature is a hidden drainage system with precision-engineered channels that expel water at a rate of 2L per minute, paired with a gravity-driven equal-pressure chamber that balances internal and external air pressure, eliminating water suction. The versatile tilt-and-turn mechanism offers two modes: tilting inward at the top for gentle ventilation, and fully turning inward for easy cleaning and maximum airflow. Paired with triple-glazed Low-E glass, this design achieves A++ energy efficiency, making it a year-round solution for comfort and durability.


Product Characteristics


Frame Material: Aluminum Alloy with PA66 GF25 Thermal Break (multi-chambered structure for enhanced insulation)

Glass Type: Triple Glazed Low-E Glass (5mm + 12mm Argon + 5mm) with a protective ceramic coating

Water Resistance: Class 6 (500Pa)—tested to withstand heavy rain equivalent to 100mm/hour

Air Tightness: Class 8 (≤0.1m³/(m·h))—minimizing dust and pollutant infiltration

Certifications: EN 14351-1 Compliant, AS/NZS 4284 for water and wind resistance


Advantages


Weather Resilience

Engineered to endure extreme conditions, the windows resist 177km/h winds and heavy rain without leakage. The hidden drainage system features slope-designed channels that prevent debris blockage, while multi-layer EPDM seals—with 4mm thickness—create a barrier against wind-driven rain. In coastal areas, the aluminum frame is treated with a marine-grade anti-corrosion coating to resist salt damage.


Energy Savings

The triple-glazed Argon-filled glass is a thermal powerhouse: Argon gas, denser than air, reduces heat conduction by 30% compared to air-filled gaps, while the Low-E coating reflects 90% of infrared radiation. Combined with the PA66 GF25 thermal break, this setup reduces heat loss by 50% in winter and heat gain by 45% in summer, cutting HVAC energy consumption significantly.


Ergonomic Design

The tilt-and-turn operation is designed for ease of use: a single handle controls both modes, with a smooth pivot system requiring just 5N of force to operate—ideal for children and elderly users. When fully opened, the window sash lies flat against the interior wall, allowing safe and thorough cleaning of external glass surfaces without the need for ladders.


Why Choose Us


Testing: Rigorously certified to GB/T 7106-2019 standards, withstanding 10,000+ opening/closing cycles and 500 hours of weather testing without performance degradation.

Warranty: Backed by a 10-year guarantee on hardware components (hinges, locks, handles) and a 20-year warranty on glass units, covering fogging and seal failure.

Local Service: With regional warehouses across key markets, we offer 48-hour response times for replacement parts and on-site repairs, minimizing downtime during extreme weather events.


K5N Weatherproof Double-Glazed Thermal Break Casement Windows for Home K5N Weatherproof Double-Glazed Thermal Break Casement Windows for Home
K5N Weatherproof Double-Glazed Thermal Break Casement Windows for Home K5N Weatherproof Double-Glazed Thermal Break Casement Windows for Home
K5N Weatherproof Double-Glazed Thermal Break Casement Windows for Home



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Send Email: info@sungyewindows.com
Tel: +86-13392793736
Address: Baijie Village, Taiping memorial archway, Dali Town, Nanhai District, Foshan City.
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