The aperture ratio of aluminum alloy door and window screens varies depending on the type, material and mesh size of the screens.

Generally speaking, the aperture ratio of common invisible screens is usually between 50% and 70%.

The aperture ratio of diamond mesh screens is relatively low, about 30% to 50%.

It should be noted that this is only a rough range. The specific aperture ratio will also be affected by the following factors:

1. Screen material: The weaving method and density of screens of different materials will vary, thus affecting the aperture ratio.

For example, some high-strength screens may be woven more tightly to ensure strength, and the aperture ratio will be relatively low.

2. Mesh size: The larger the mesh, the higher the aperture ratio, but the mosquito-proof effect may be reduced.

Smaller meshes can better block mosquitoes, but the aperture ratio will be reduced accordingly.

3. Screen manufacturing process: The fineness of the manufacturing process will also have a certain impact on the aperture ratio.

In actual application, if you have higher requirements for ventilation, you can choose screens with a higher opening rate; if you pay more attention to protection and anti-mosquito effects, you may prefer screens with a slightly lower opening rate.