These "physical examinations" work should be done well during the break-up period.

At present, most sheds have entered the shed period, and the vegetable farmers are busy with the sheds in the clearing of the garden. After the end, don't forget to give the shed a "physical examination."

Checking the wall At present, in order to prevent the wall from being washed away by rain, vegetable farmers often use measures to cover the film, non-woven fabric or use cement or brick to protect the wall. In order to save costs, some vegetable farmers use large old film to cover the wall, so that the rain will flow down the river and will not wet the wall. However, the film ages quickly and is easily scratched. Even if the multi-layer is covered, the film may have holes, and once the rainwater enters, the wall is not easy to return to dryness. It is recommended that the vegetable grower choose the anti-aging film and put a layer of sunscreen material on the plastic film to reduce the sunlight. Usually pay attention to check whether the film is damaged, and repair it if it is damaged. After the shed wall is covered with non-woven fabric, in rainy weather, although the rain can wet the non-woven fabric, in the fine weather, the wall and non-woven fabric can be dried. Compared with covering materials such as films, nonwoven fabrics have a relatively long life. Some vegetable farmers use cement or brick to cover the wall in the back wall, so that it can be protected from rain and heat. It can be said that it is a better method, but because it is relatively labor-intensive and expensive, it is relatively applied. less.

For old sheds, always check for leaks in the back slope. In places where water leakage has been found, it must be handled in time to repair the damage and ensure that the water is no longer leaked into the wall.

The height of the existing shed is higher than that of the new shed. The weight of the new shed is even more than six meters. The weight of the column itself and the weight of the insulation on the shed are also increasing. It is easy to create a column subsidence, which will affect the performance of the shed. The slab pillar is subsided, and the weight of the shed cover is too large. It is mainly caused by the loosening of the soil in the shed when the shed is built, and the sedimentation is caused by the downward subsidence after being pressed.

When the shed is found to be sag, the vegetable grower can completely remove the soil from the base of the sag pillar. Then the two men hold the column and lift it up, so that the top of the column is in contact with the steel pipe accurately, and then immediately fill the bottom of the column and fill it with bricks. In order to prevent the column from sinking again, the soil around the column is finally backfilled. If this is the case, it is best to check if the bottom of the column is covered with bricks. If not, the brick should be placed immediately after the column is lifted to effectively prevent the column from sinking.

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