How to build a greenhouse

First, the location of the greenhouse

The site selection of greenhouse is very important. The site selection should be as flat as possible, the groundwater level should not be too high, and the mountains and buildings that block the light should be avoided. For planting and breeding users, the polluted places can not be built. The wind resistance of general greenhouse should be above grade 8

2. Greenhouse orientation/greenhouse orientation

As for the solar greenhouse, greenhouse orientation has a great influence on the thermal capacity of the greenhouse. Now most areas in our country choose due south, that is, the meridian direction of the location. Based on experience, the greenhouse in the north is oriented to the west. 5 ~ 10 degrees to the west is appropriate. This allows the greenhouse to store more heat. If multiple greenhouses are built, the space between the greenhouses should not be less than the width of one greenhouse.

It is suggested to choose north-south orientation for greenhouses, that is, the greenhouses have their heads on the north and south sides respectively. This orientation can make the crops in the greenhouses distribute evenly to the light.

Three, greenhouse masonry installation

The masonry of solar greenhouse should be adapted to local conditions. The wall materials of greenhouse can be used as long as they have good thermal insulation and heat storage capacity. It is emphasized here that the interior walls of the greenhouse must have a heat storage function in order to store heat. At night, this heat is released to maintain the temperature balance in the shed. Brick wall, cement plaster wall, earth wall have the capacity of heat storage, the wall of the greenhouse generally adopts the brick and concrete structure is better.

Greenhouse based design is determined according to the geological structure and local climate conditions, cold region, soil degeneration, relatively deep some basis, to transcend the frozen layer advisable, not all the year round production of greenhouse than all the year round to slightly darker in production of the greenhouse, the basis of rubble stone or river stone filling to add 20 to 30 centimeters of above ground beam, foundation beam above masonry wall, the wall should have insulation sandwich, The thermal insulation sandwich is filled with thermal insulation materials such as benzene board and perlite. If the wall exceeds 70 extension meters, it is recommended to leave expansion joints. According to the nature of the greenhouse, the back wall of the greenhouse should have certain ventilation Windows for winter ventilation. Before using the rainbow greenhouse wall masonry and sealing, the embedded parts of the arch should be used for the installation of the arch. Greenhouse wall height according to the greenhouse span, generally 8 meters across the greenhouse back wall height of 2.5 meters is appropriate. 7.5m across the back wall of the greenhouse is 2.3m.

Greenhouse wall embedded parts spacing according to the purchase of greenhouse models are different, respectively have 0.8 meters, 1 meters, 1.2 meters. The embedded parts are T-shaped steel bars with a diameter of more than 16mm, which are 25cm high and 6cm exposed to the wall. Note: An arch embedment is buried at half the distance of an arch from the inner side of the gable. For example, if the arch is 1 meter apart, it should be buried at 0.5 meters. If the arch is 1.2 meters apart, it should be buried at 0.6 meters. . Installation with a length of more than 50 meters of steel tape lines to reduce error. In addition to burying the embedded parts of the arch frame, the pressure film line hook should be buried. In order to install the film line. The laminated wire hook at the top of the back wall can be made of medium 12 steel bars, and the T-shaped steel bar head is bent into a hook or ring. The upper part of the 25cm high hook is exposed to the wall about 8cm, and the pressure film line hook should be located in the outer part of the arch frame embedded and the parallel distance between the arch frame embedded and the arch frame embedded is about 5-8cm. The pressure film wire hook shall be installed in the middle of the two arch embedded parts, one in each empty.

The gable side has a door, and the greenhouse of the workshop needs to be built at one end of the greenhouse. The workshop should not be too high to avoid shading. A wall skirt of 25 cm should be built at the bottom corner of the front of the greenhouse and embedded parts should be left. The skirt wall is mainly used to prevent wind and water and to fix the arch. The skirt arch bracket embedment shall correspond to the rear wall arch bracket embedment.

The skirt wall also needs to be set with the pressed film line hook, which can be set on the outer side of the skirt wall generally. Corresponding to the back wall pressure film line hook. After the installation of the arch, the skirt wall and the back wall should be plastered, and the welding joint should be spread inside. When plastering, the bevel should be spread outwards for drainage.