Fly curtains, also known as insect screens, work by providing a physical barrier that prevents insects from entering a space while still allowing airflow and light. Essentially, they are fine mesh screens that fit snugly over a window or door opening.
Here's a breakdown of how they typically function:
- Physical Barrier: The fine mesh of the curtain creates a barrier that flies, mosquitoes, and other insects cannot penetrate.
- Operation (Retractable Type):
- The curtain is stored in a cassette, typically mounted above or to the side of the window or door.
- To use, you pull the mesh down or across from the cassette.
- The mesh is designed to fit precisely within the window or door frame, ensuring a tight seal.
- When not in use, the mesh retracts back into the cassette, keeping it clean and out of the way.
- Operation (Strip Curtain Type):
- Made from overlapping strips of material (usually plastic or PVC)
- The weight and overlap of the strips create a barrier.
- People and pets can easily pass through by pushing the strips aside.
- The strips then fall back into place, re-establishing the barrier.
- Made-to-Measure: Often, fly curtains are made-to-measure to ensure a perfect fit for the specific window or door, maximizing their effectiveness.
In summary, fly curtains function as a physical barrier, either retractable mesh or overlapping strips, preventing insects from entering a space while allowing ventilation and light.
