Lixin-5 wall rectangle structure sheet is a new generation multi-wall energy-saving product which design for agricultural greenhouse, eco-restaurant, and other architectural glazing buildings, all these applications requires higher heat insulation and light-weight structure. The built-in 3-wall thin horizontal rib structure allow the sheet to maintain excellent high transmittance. The air spaces within the multi-wall structure guarantees good thermal insulation and excellent loading capability. The K-value decreased by 30% compared with the same thickness of 3-wall sheet. The coextruded UV layer provides long-term UV protection. All Lixin sheets are supplied with 10 years warranty. Lixin 5-wall rectangle structure available in 8mm, 10mm and 12mm thickness.