Poly plastic stands out for its ability to balance light transmission, thermal retention, and strength. Unlike rigid materials such as glass, it can be tailored to specific agricultural needs. For example, polyethylene-based poly plastic can filter sunlight in ways that promote uniform plant growth, helping crops receive the right amount of diffused light to avoid leaf burn while still encouraging photosynthesis. In regions like Long Beach, California, where sunlight intensity can fluctuate, poly plastic serves as a reliable shield that softens harsh rays during peak hours while maintaining warmth at night. Its UV-resistant properties further extend its lifespan, preventing yellowing or brittleness over time. This means less frequent replacements and lower maintenance costs for greenhouse owners. With modern manufacturing techniques, poly plastic can also be produced in multilayer formats that improve insulation and resist condensation, maintaining a stable microclimate inside the structure throughout different seasons.