Insulation is used to do three defenses
As the temperature rises, the insulation is mostly rolled up and covered on the roof. The heat preservation of some vegetable farmers is exposed to the sun, and they are allowed to expose to the sun and rain, which greatly accelerates their aging speed and seriously affects the service life of the heat preservation quilt. Therefore, after the insulation is rolled up, it must be protected.
The waterproofness of rainwater is an important indicator for evaluating thermal insulation quilts. At present, most thermal insulation quilts have good waterproof performance. However, some thermal insulation quilts of some materials are not waterproof. It is easy to breed mold after entering the water and affect the service life. Therefore, before the insulation is rolled up, it should be dried in the sun, covered tightly with a film that is not damaged, and the insulation should be cleaned around to prevent the water from soaking the insulation from the bottom. Once the cover is blown away by the wind and the rainwater is soaked in the insulation, it should be dried in time and re-covered tightly.
Sunscreen insulation is mostly black or dark brown, easy to absorb light and generate heat. In the spring, the light is strong. If there is no shading with a covering and only the film is wrapped, the dark insulation will be released slowly after absorbing heat. The internal temperature can even rise to above 70 ℃, which obviously accelerates its aging rate. Therefore, after the insulation is rolled up, it should be covered with waterproof material such as film first, and then covered with non-woven fabric and other shading materials.
Windproof and windy It is often accompanied by windy weather in spring, and the rolled insulation is easily blown away by the wind or the roof. Vegetable growers should check the fixing of the insulation blanket in time to avoid being blown away by the wind. Especially after the strong wind, it is necessary to check the preservation of the insulation in time, and solve the problem in time.
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