Some shed more than five years of age in greenhouses, followed by covering the roof and damaged due to disrepair. Therefore, after the roof of the greenhouse reasonable maintenance it is very necessary. Films can replace the wire, covering the insulation, waterproofing materials, casing and other steps for maintenance. Also, pay special attention to the height of the soil, so as not to exceed the greenhouse roof is appropriate, and to the south than in the north. Camber large greenhouses, because Roof camber appropriate, Jining greenhouse construction, the hot air is easily discharged along the upper part of the greenhouse films, greenhouse construction, even if the leaked small mouth, but also to achieve better leaked results. The long years of low grown old shed, because greenhouse camber small shed surface is relatively flat, hot air from the shed leaked off outlet slow speed, the greenhouse temperature is high. Typically, such greenhouses leaked mouth open top to 40 cm wide, with a height of only high camber large greenhouses outlet opening 30 cm leaked to the same effect. After the morning opened the shed one hour, open the vent 3-5 cm put a small wind, the purpose is to shed moisture to escape, adding shed carbon dioxide for photosynthesis smoothly supplementary materials. Isochronous Pengwen rose to above 28 ℃, will gradually leaked mouth open, keeping the greenhouse temperature does not exceed 33 ℃ (for cucumber, gourd and other vegetables for thermophilic) either. Greenhouse construction, Tian Yun vegetable wholesale, Zibo greenhouse built by the Cangshan County Tianrun cultivation of professional cooperatives. Greenhouse construction, Tian Yun vegetable wholesale, Zibo greenhouse construction is Cangshan Tianrun planting cooperatives (www.tianrun8.net) this year introduced a new upgrade, the above picture is for reference only, please call the contact or pictures on this page phone, for the latest information, contact: Sun Jinhu.