The house that was renovated a long time ago has recently been refurbished. If it is re-painted latex paint, do not need to shovel out the wall hide? Recently, I have also paid attention to some of them. Many people say that they want to, but there are also some that do not need to be said. If shovel walls are used, it is very easy to cause cracking of the walls. Want to ask how the supervisors can solve them? "Scraper" refers to removing the original decorative layer of the wall and laying the foundation for the current wall decoration project. Including wall painting, wall tiles and other basic processing, is one of the categories of hidden works, and in the refurbishment, whether to shovel the wall, according to the actual situation to determine, today to analyze Miss Xu, the old Does the room renovation need to shovel wall leather! First, what is the specific part of the wall? Generally brick walls, interior wall hanging, that is, a layer of cement mortar. After the mortar is dry, the interface agent is applied and dried, and then the putty is leveled (the effect of the interface agent is to increase the adhesion). The putty thickness is generally controlled within 2mm. After the putty is dried, the primer is applied. After the primer is dry, the primer is applied. The wall outside the cement mortar (from the interface putty to the latex paint surface) is usually called wall covering. Second, why shovel a wall? If the putty powder used in the old house wall is not good, the glue is low, and the time is long, the wall covering will fall off after the glue in the putty expires. If the initial grassroots treatment is not in place, after the house has passed a heating season or is full of people, it will cause cracks in the houses. After a long time, the cement flour will come off and the putty will fall off. Third, under what circumstances do you need to shovel a wall? First, determine if your wall is water-resistant. If it is, you do not need to eradicate it. If it is not, you must remove it. The identification method is as follows: 1, "dry law" Use a broom to gently sweep on the wall. If the powder falls off, it means that it is not water-resistant putty and poor adhesion. It needs to be removed. 2, "wet method" Put the water on the wall. If water penetrates directly into the wall, it is not water-resistant putty. If water stays along the wall, it is water-resistant putty. After watering, wash the wall with your hand. If the wall is loose, you must remove the wall. Secondly, wall scraping porcelain, loose substrates, empty drums, and poor adhesion between latex paint walls and walls require the removal of wall coverings. The judgment method is as follows: 1, "dry law" Knock with a hammer, listen to the voice to determine whether empty drums, empty drums may fall off, indicating that the grassroots is not solid, you must shovel the wall and then redo. On the contrary, there is no need for shoveling if the grassroots are firm and empty. Old house renovation old house renovation wall construction Double Tube Tri-Proof Light,Double Tube Light, Tri-Proof Light Without Tube,Double-Ended Classic Tubes Land of Lights Electric Appliance Co., LTD , https://www.loloutdoorlight.com The problem of Ms. Xu of Shang Nan Hua Cheng 
 Supervision question 
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