The core characteristics of Liaoning insulated windows

1、 Core structure design

Optimization of Broken Bridge Aluminum Profile

The aluminum alloy profile is divided into inner and outer parts using PA66 nylon insulation strips, forming a "cold and hot bridge barrier". Customized products in Liaoning region will increase the width of insulation strips to ≥ 34mm (conventional products are only 24mm), and adopt a multi chamber design with ≥ 5 independent chambers to further enhance insulation performance.

Multi layer glass system upgrade

The technological evolution path is: single-layer glass → double-layer hollow → three glass two cavity (mainstream in Liaoning) → vacuum composite glass. The three glass and two cavity structure forms an independent air layer through sealing design, which can reduce 30-50 decibels of noise and effectively isolate air infiltration, with air tightness reaching national standard level 6 or above.

2、 Extreme environmental performance guarantee

Anti condensation ability

A comparative experiment in a residential area in Shenyang showed that under outdoor conditions of -28 ℃, Liaoning customized insulated windows were designed with three glass and two chamber argon gas filling, effectively avoiding condensation on the windows.

Long term energy consumption control

Taking a 120 square meter residential building as an example, using Liaoning insulated windows can reduce heating and cooling energy consumption by 15% -20% throughout the year. The heat transfer coefficient K value of the entire window is ≤ 2.0W/(m ² · K), and some high-end products can reach the passive room standard of 0.8W/(m ² · K).

3、 Regional adaptation plan

Liaodong Mountain Area (Huanren, Kuandian, etc.)

Adopting the 70 series bridge cut aluminum+three glass two chamber argon filling configuration, with a K value ≤ 1.2, it meets the requirements of high-altitude and strong wind pressure environments.

Coastal cities (Dalian, Yingkou)

Adopting 80 series broken bridge aluminum and laminated Low-E glass, the wind pressure resistance performance reaches level 9, and the winter insulation is improved by 30% through Low-E coating.

Shenyang metropolitan area

Adopting the design of integrated window screen with broken bridge aluminum and centrally placed louvered three glass windows, the dynamic balance between insulation and ventilation is achieved while ensuring a K value of ≤ 1.8.

4、 Technical certification and testing

Standards compliance

Priority should be given to products certified according to the Technical Regulations for Building External Window Systems in Cold Regions (DB21/T 2973-2018) to ensure that key indicators such as K value and air tightness meet the standards.

third-party testing

Require the enterprise to provide a testing report with a gap between the window sash and window frame of ≤ 2mm and a welding flatness error of ≤ 0.2mm/m, and verify whether it has passed the 200 hour salt spray test.