B2bmarkdown: many newcomers are staring at materials while neglecting foundations and details, resulting in wind blowing and leaks. In fact, with the three core elements of “square-enhanced-sealed” to avoid several common faults, a strong and durable shed can be built。
I. Basic and bombs: sure is a premises of all
The collapse of the huts was often not a lack of good material, but rather a lack of solid foundations. The first step before the move was to level the site, which would be better kept within 5 cm, which would avoid an imbalance of stress。
When the skeleton is installed, the pillars are buried at least 30 cm deep in the ground and the soil is solid. In the case of a simple steel frame, the connection shall be secured by a special card button or bolt and shall be strictly forbidden to be entangled by wire. It is the habit of many teachers to add tilt poles to the main stress points, which can significantly improve their ability to resist the wind. Remember the verdict: shake the main skeleton with your hands so hard that you don't get to shake it。
Duplicate techniques: intensity determines life expectancy
Dust-covering is the most obscurantist part of the shed, and many newcomers, in an effort to save their time, have laid them loosely and collapsed, resulting in a wind blowing them apart。
The correct approach is to fix one end, then tighten vertically and finally fix the other end. A membrane line may be used for cross-fixing "well" fonts, with a membrane line set at a distance of 1. 5 to 2 metres. The verdict is simple: the finger presses the thin film, feels tense and resonates strongly, indicating that the tension is right. N. B.: the overlap width of the membrane stitches should not be less than 10 cm and be sealed with waterproof duct tape to prevent the infiltration of rain into the root system of the crop。
Iii. Ventilating vent design: prevention of stifling and disease
Many newcomers were concerned with the temperature and neglected the ventilation, leading to a serious illness caused by wet air in the shed. The correct approach is to set up vents on both sides of the shed and on the top。
The side skirt is proposed to be opened at a distance of more than 30 cm from the ground, to facilitate the sunking of the cold air; the top can be a diaphragm or a ventilation window to form an air convection. In day-to-day management, the level of closure should be adjusted flexibly to the weather. The criteria for determining the need for ventilation are that windows must be opened immediately when the temperature in the shed exceeds the suitable ceiling of the crop (e. G., tomatoes above 30°c) or when the moisture is clearly condensed. Don't wait until the plant is aging to breathe。
In general, it is sufficient to remember that “the foundations are flat, the skeletons are tight, the film is bandaged and the ventilation is ventilated”, with an additional half-hour examination of the details in the preceding period and a six months less in the later period。
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