Choosing the right polycarbonate sheet is crucial to the performance, service life, and crop growth effect of a greenhouse. Many buyers make wrong decisions due to lack of professional knowledge, leading to problems such as rapid yellowing, condensation, and poor insulation. This guide will help you make the best choice based on actual needs.
First, determine the structure type: twin-wall or triple-wall. For small household greenhouses in Southeast Asia, 6mm–8mm twin-wall PC sheet is sufficient, with low cost and good performance. For commercial large-scale greenhouses or high-cold regions, 10mm triple-wall sheet is recommended for better insulation and strength.
Second, anti-fog function is very important. High humidity in Southeast Asia easily causes condensation. Anti-fog PC sheets can prevent water droplets from dripping onto crops, reducing disease and improving yield. If you plant high-value vegetables or flowers, anti-fog sheets are necessary.
Third, UV protection is a must. Only PC sheets with co-extruded UV coating can be used outdoors for a long time. Sheets without UV coating will yellow and become brittle within 1–2 years. Be sure to confirm UV protection performance when purchasing.
Fourth, light transmittance selection. Clear sheets provide the highest light transmittance, suitable for most crops. Opal diffused sheets make light more uniform and prevent leaf burns, suitable for light-sensitive plants.
Fifth, thickness selection. 6mm is the most economical for general greenhouses. 8mm is suitable for areas with heavy rain and wind. 10mm is used for large-span and high-standard greenhouses.
In addition, choose reliable manufacturers. Quality differences between raw materials are huge. Virgin material sheets have better performance and longer life than recycled material sheets.
By comprehensively considering the above factors, you can choose the most suitable polycarbonate greenhouse sheet to ensure the best investment return.
