Greenhouse should pay attention to insulation performance, increase greenhouse insulation performance, reduce energy consumption, it is the most direct means to improve production efficiency of the greenhouse. Greenhouse insulation ratio is a fundamental measure of greenhouse thermal insulation properties. Greenhouse insulation resistance ratio is the smaller greenhouse translucent material covering the area of ??thermal envelope large greenhouse with an area of ??coverage and a ratio. Insulation ratio higher, indicating better insulation properties greenhouse. Greenhouse glass greenhouse natural ventilation relies on natural ventilation most of the time to adjust the indoor environment. In the form of large-scale structure of production of glass greenhouse is generally double slope Greenhouse, provided in the form of ventilation louvers in the side walls and the roof is. Its ventilation area of ??not less than 15% of the total land area of ??the greenhouse, greenhouse Wuwei, preferably greater than 30%. When the roof shutters open, the sash can be more than the best level upwards inclined 100 to the horizontal angle when fully open, then get a good ventilation. Natural ventilation ventilation and wind speed, wind direction, louver position, venting about the area and the temperature difference between indoor and outdoor temperature. When venting a total area of ??27% when the indoor area of ??Lanzhou greenhouse, if only roof ventilation, greenhouse, even though the outdoor wind speed reaches 10 km / h, also less than ideal ventilation rate 0.75 times per minute; When the roof and side walls venting louver fully open, to undertake the construction of greenhouses, in almost no wind, the ventilation rate can reach 0.68 times / minute, close to the normal recommendation of 0.75 beats / minute ventilation rate. Greenhouse construction team | Tianrun vegetable wholesale (certified) | Greenhouse by the Cangshan County Tianrun cultivation of professional cooperatives. Cangshan County Tianrun planting cooperatives (www.tianrun8.net) Shandong Linyi, fruits leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Run vegetable wholesale leadership in the field with the staff warmly welcome all inquiries negotiations to create Tianrun vegetable wholesale better future.