To judge whether the sound insulation performance of the thermal break aluminum window is good, you can start from the following aspects:

Observe the window frame structure:

High-quality thermal break aluminum window frames should have a good thermal break design, which can effectively prevent sound from being transmitted through metal. Check the insulation strips at the thermal break. The insulation strips with good material and larger width usually have better sound insulation effect.

Check the glass type:

If multi-layer insulating glass or laminated insulating glass is used, the sound insulation performance will generally be better. It can be judged by observing the number of layers of glass and the interval in the middle.

Glass thickness is also an important indicator. Thicker glass can usually block sound better.

Check the sealing performance:

Pay attention to the sealing strips of the window. Soft, elastic and tightly installed strips can improve the sound insulation effect.

After closing the window, feel whether there is air leakage around the window with your hand. If there is no obvious airflow, the seal is good.

Understand the hardware accessories:

High-quality hardware accessories can ensure that the window is closed tightly and improve the sound insulation performance. Check whether the handle operates smoothly and whether the window is firmly locked.

Actual test:

You can ask the merchant to conduct a simple sound insulation test, such as making some noise outside the window and then feeling the size of the sound inside the window.

You can also check the product's sound insulation performance test report to understand the specific sound insulation parameters.

For example, when some windows are closed, even if there is the sound of vehicles driving outside the window, there is almost no obvious noise inside the window, which shows that its sound insulation performance is excellent. If you can still clearly hear the noise outside the window after closing the window, and feel the wind blowing in, it is likely that the sound insulation effect is not good.

Through the above observations and tests in many aspects, it is possible to accurately judge whether the sound insulation performance of the broken bridge aluminum window is good.