Multi-span arched greenhouse have strong anti-wind load and anti-snow load capacity,the internal can be added to a layer of arch insulation. In summer,using of cooling pad and fan of cooling system,roll up motor side or top ventilation and external shading to collaborate to achieve the effect of cooling. Affordable use of a wide range generally do 6 meters,7 meters,8 meters,9.6 meters span,the top covering materials generally use plastic film,surrounding by the membrane is not limited to film,can also be used PC panel or glass and other covering materials.