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A small portable greenhouse is a great find for gardeners who do not want to spend time and energy on creating a large greenhouse. It will come in handy in the spring, so that temperature drops do not greatly affect the seedlings. Such a design can be easily done with your own hands according to a drawing.
- Greenhouse "Snail": description
- Advantages and disadvantages
- What you need to work
- Step-by-step manufacturing instructions
- Useful Tips
Greenhouse "Snail": description
The main feature of this type of construction is an arched roof. In its shape, it resembles a greenhouse in the form of a shell. The only difference is in the sash: one opens, and the second is motionless. This design acts in the same way as the semicircular lid of the bread bin, so the greenhouse has another name "Bread bin". The sides of the "Snail" are closed tightly, and at the end of the vertical pipe there is an axis of rotation of the upper sash.
The greenhouse is about 2 meters long and about 1 meter deep. At the same time, the height of the structure can be in the range of 75-85 cm. This portable greenhouse is lightweight and compact. This design allows you to grow any seedlings. The arched greenhouse protects the seedlings from the rays of the scorching sun and helps to maintain the optimum air temperature. Polycarbonate is most often used for coating. This material is more durable and does not need to be replaced every year.
Advantages and disadvantages
The main advantages of this design are ease of maintenance and functionality, as well as resistance to external factors, low weight and ease of manufacture. Thanks to the hinged lid, you can easily access the seedlings and carry out the necessary agrotechnical measures. In the "Snail" greenhouse, warm air is concentrated in the upper part, so the plants will not mate.
In such a compact greenhouse, you can grow not only vegetables and berries, but also flowers.
Such a structure does not need to be fixed to the foundation, so it can be placed anywhere on the site. The greenhouse is stable even in strong gusty winds. After the end of the summer season, the greenhouse can be easily disassembled. In addition to the positive characteristics, "Snail" has disadvantages. In such a design, it is not possible to grow tall plants, due to the small height of the greenhouse.
It can also be difficult to tie plants. If you use a film material as a coating, then the structure will become less functional. The joints will need to be regularly checked and lubricated from time to time. It is not recommended to grow plants in such a structure in winter. In severe frosts, the greenhouse can be deformed.
What you need to work
To make a frame, you will need profile, plastic pipes or wooden beams. The cross-sectional dimension of the pipe should be 2x20 mm. You will also need the following materials:
To collect a metal frame, you need a welding machine, a drill, a hacksaw and a pipe bender. If you plan to create a wooden structure, then you should prepare a saw, a screwdriver, a knife, a hammer, a level from the tools.
Step-by-step manufacturing instructions
The technology of creating a greenhouse "Snail" consists of several stages. Pouring the foundation. First you need to mark the boundaries of the future structure and dig a trench. Then put a layer of rubble, lay out bricks around the perimeter and pour concrete. You can also make formwork. After the foundation has dried, remove the boards and fill in fertile soil.
You can make a wooden foundation. It can be easily moved to another location. To create a foundation of this type, lay out bars measuring 150 cm x 150 cm and deepen into the ground along the entire length. In this case, the corners must be bolted. After that, a greenhouse is installed.
Preparation of arcs. Take 2 profile pipes one meter each for the driving part and 2 blanks with a size of 1.6 meters. With the help of a special tool - a pipe bender, make 4 arcs.
Next, mark the middle on the side of the frame. Base device. Assemble the lower frame according to the drawing and weld in the corners. Next, weld the side parts and mark the middle again. Weld the ends of the pillars along the two centers marked with a marker. In this case, the opening of the frame must be on the outside.
Installation of the rest of the structure. Weld moving parts - side arcs and crossbars. In order for the sash to open with a hinge, it is necessary to weld axial strips to the moving elements. Pre-cut them at an angle of 45 degrees. Attach the resulting structure to the foundation with self-tapping screws.
Video about the "Snail" greenhouse:
Fastening polycarbonate sheets. Cut polycarbonate sheets according to the size of the openings. In total, 6 pieces are needed: for the side parts, the roof and the blind part. Polycarbonate is attached directly to the frame with self-tapping screws.
The device of the "Snail" greenhouse requires adherence to the sequence of work. Failure to comply with all recommendations for the manufacture of a greenhouse may cause errors. The most common is using the wrong lintels for the roof and base.
They come in different lengths and are specially designed for roof and base applications. The jumpers must be assembled first. In this case, it should be taken into account that the holes are at the same distance. Small error of 4mm is allowed. Otherwise, the roof will be skewed.
Forming the base without using stakes. As a result, the greenhouse will be uneven. Be sure to use pegs and level the base of the structure using a level.
No gaps in the side. Clearances are needed for the normal distribution of air in the greenhouse. The optimal size is about 2-5 cm.
To increase the functionality of the greenhouse structure, cover with manure, dry grass or leaves on both sides of the greenhouse on the base of the foundation. Over time, the organic material will start to rot. At the same time, heat will be generated, which will ensure the creation of natural conditions for heating the soil. A bar with brushes can be installed on the stationary part. Each time the moving element is operated, the brushes will remove dust and dirt.
When opening the greenhouse, it is recommended to fix the moving element on the supports. It can be made from a wooden bar. This will prevent injury if the sash lowers itself in strong winds. When choosing polycarbonate, it is better to choose a material with UV protection. Such polycarbonate will not only last a long time, but also protect the seedlings from exposure to sunlight.