To determine the durability of windows, three key indicators come into play: airtightness, watertightness, and wind pressure resistance. These three aspects define a window's ability to block wind, withstand rain, and withstand the harshness of a typhoon. Those in the construction industry know that External Casement Aluminum Windows have become incredibly popular in recent years. As buildings grow taller and more sophisticated, the demands on windows are increasingly akin to choosing a smartphone – they must not only look good but also be sturdy and durable. How important are airtightness, watertightness, and wind pressure resistance for a well-designed external casement aluminum window?

Airtightness: 

Airtightness simply means whether or not air leaks through. If cold air still escapes through the gaps even when the window is closed, then the airtightness is poor. There are three key factors affecting airtightness:

Is the sealing strip material chosen correctly for the Aluminum Window design?

Good sealing strips are highly elastic and resistant to aging, and won't deform within a year. Etaifeng uses high-resilience TPE or EPDM materials, ensuring a long service life and avoiding the embarrassing situation of "hardening in six months and leaking air in a year."

Is the structural design of the Aluminum Window profile reliable? 

Some windows are obviously drafty – this is because they have too few cavities in the frame, poor support, and insufficient contact surface. Etaifeng's system windows use a multi-cavity thermal insulation structure, with high-strength frames and a very stable fit after installation.

How well does Aluminum Window's hardware system match?

Hardware is the soul of a system window. The denser the locking points and the more even the closure, the better the airtightness. Etaifeng's entire hardware system is matched according to system window standards, so there won't be a situation where a slight twist of the frame lets in the wind.

Watertightness: 

With increasingly extreme weather, torrential downpours are common, sometimes even flooding buses. In such situations, the watertightness of a window becomes crucial.

Scientific Drainage System Design:

If the drainage channels are shallow or the drainage holes are poorly positioned, rainwater will only accumulate. Etaifeng's system windows use a graded drainage system with positive pressure balance, like a rainwater highway – water never gets stuck.

Continuity of Sealing Strips and Corner Finishes:

Many windows fail at the corners. Etaifeng uses continuous sealing across the entire frame and reinforces waterproofing at the corners, making heavy rain a no-brainer.

Glass Bead Finish:

Loose bead strips and large gaps will damage even the best windows. Etaifeng's production line is fully automated, ensuring stable gaps and uniform pressure.

Wind Pressure Resistance: 

The higher the building altitude in a city, the stronger the winds. Wind pressure resistance becomes a crucial factor, especially for buildings near the coast, in high-rise buildings, and in open areas.

Frame Strength:

Etaifeng's External Casement Aluminum Windows use high-strength aluminum profiles, which are thick, hard, and have strong bending resistance.

Glass Configuration:

For External Casement Aluminum Windows, double-glazed windows with tempered glass are standard, and laminated glass is also an option. Higher wind pressure ratings require more stable glass. Etaifeng's External Casement Aluminum Windows fully meet these requirements, offering options such as double-glazed and tempered glass, resulting in a very stable structure.

Overall Structural Design:

The difference between External Casement Aluminum Windows and ordinary windows is that they are not "pieced together" but "systematically designed." All structural nodes are part of a complete solution, naturally resulting in high wind pressure resistance.

Why do Etaifeng's system windows excel in these three performance aspects?

Etaifeng boasts a modern Exterior Swing Open Aluminum Window production line, with complete control over the entire process from profile processing to assembly and testing. Every step is standardized and traceable. Etaifeng provides complete system solutions, including Exterior Swing Open Aluminum Window structural design, hardware, sealing strips, and glass, all uniformly matched. This is why its airtightness, watertightness, and wind pressure resistance are consistently excellent. With comprehensive testing equipment, every batch of products undergoes performance testing. Etaifeng's factory is equipped with air compressors, rain chambers, and airtightness testing platforms, all operating online. All Exterior Swing Open Aluminum Window products undergo full-scale testing; unqualified products never leave the factory.

Modern architectural design is increasingly moving towards high-end and energy-efficient features, and Exterior Swing Open Aluminum Window represents the future trend for building windows. Airtightness, watertightness, and wind pressure resistance are not optional features, but essential fundamental capabilities.

Etaifeng's Exterior Swing Open Aluminum Windows excel in all three performance aspects. Whether you are designing residential or commercial buildings or undertaking construction projects, we can provide stable and reliable system window solutions.

Contact us!

If you are looking for high-quality, stable system windows,

please feel free to contact Etaifeng.

We warmly welcome you to visit our factory, exchange ideas, and discuss projects.

We can also provide you with complete customized Exterior Swing Open Aluminum Window solutions.

Cooperation begins with communication; we look forward to meeting you!