Decoration strategy bottom reading commentary on h

2022-07-22
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Wall decoration is a step in family decoration, and it is also a large area in the whole house decoration, so many owners also attach great importance to it. Therefore, for owners who do not understand the steps of wall decoration of rough houses, it is also necessary to understand some steps of wall decoration before wall decoration. Let's follow the editor to see how to decorate the wall of the blank room

how to decorate the wall of the blank room

the first step of wall decoration [inspection and treatment of the current situation of the wall]

situation 1: cement wall. This is a common situation when a new house is handed over. Comprehensively check whether the cement wall to be painted is solid and flat. If the wall is not strong enough or there are large cracks and holes, it is recommended to complain to the developer or the property and ask them to redo or repair

case 2: white wall. Now many commercial houses are already white walls when they are handed over. They look clean, but in fact, they may have greater hidden dangers. First of all, we must check the firmness of the existing wall to see whether the existing white materials are water-resistant. If the water resistance is not good or the water resistance is ordinary, it should be removed and redone from the perspective of long-term use. As for short-term use, it can also be retained, but it is best to do one curing before other steps. At the same time, you should also check whether there is hollowing on the wall as a whole. If there is hollowing, you must shovel it off. Other inspection items are the same

case 3: the wall has been decorated. The wall surface has been decorated with wallpaper or latex paint, which is a common situation in second-hand houses. Generally speaking, the original surface decoration should be removed before such secondary decoration. If it's wallpaper, you should remove it first. If it's latex paint, you should polish it first. After the surface decoration is removed, you can refer to case 2 to decide whether to shovel the wall

★ special note:

no.1 checking whether the wall is solid and flat is a step of house inspection. See if the wall is solid. For the cement wall, you can do this: find a hard object (such as keys, screwdrivers, etc.), and draw a line on the wall to see if it will make a pit and fall seriously. There is no shortcut to find cracks and holes, only care and patience

no.2 there is more water in the kitchen and bathroom. It is recommended that the facade wall be tiled and the top wall be suspended. These two processing methods are not covered in this article, and will be discussed separately later if necessary

no.3 white wall. Check whether the material is water-resistant. You can operate as follows: find a wall, pour a little water, and rub it with your hand to see if it will become white paste. If you can poke through the white layer by hand, it is no water resistance. If you rub your hands with white, but you can't destroy this layer of white material, it means that the material has certain water resistance, so you can find a few more points to test. If the hands are almost white and not sticky when rubbed with hands, it indicates that the water resistance is very good

no.4 if the white wall has poor water resistance, but is unwilling to shovel the wall for some reason (such as short-term residence), the curing work should be done carefully. See Step 3 for details

no.5 in addition to water resistance, hollowing is also a big problem that must be taken seriously. Now, although some developers use water-resistant materials (such as water-resistant putty) on the surface, they use inferior gypsum powder to make thick leveling. It will not take long for the house to be delivered to show hollowing and cracking, and even a whole piece of cracking will occur after a longer time. In case of such empty drum, you'd better shovel it off and redo it

no.6 check whether the old wall is solid: 1 visually check whether there is peeling, cracking and bulging, and if there is, it is not solid; 2 find a blunt object (such as a small hammer) and knock on the wall to check whether there is an empty drum. If there is, it is not solid; 3 after polishing the emulsion paint, pour some water and shovel it with a shovel to see whether it is easy to shovel it off. If it can be easily shoveled off, it is not strong

the second step of wall decoration [finished product protection]

generally, the carpentry furniture and ceramic tile paving should have been completed before the wall treatment. If it is the renovation of second-hand houses, there may be more finished products. In order to prevent the finished products from being polluted by the wall covering, dust and paint in the process of wall treatment, the existing finished products in the room should be carefully protected. Otherwise, once the loss is caused, it is too late to repent

★ special note:

the protection work is listed as a separate step in order to increase everyone's attention to it. Don't leave any regrets because of carelessness, especially when there are some dirty finished products at home, we have met too many friends who ask about cleaning methods

the third step of wall decoration [sealing layer treatment]

after the first two steps, we have made enough preparations (if we need to shovel the wall, it should be finished by this time). Now we can start to seal the wall. Sealing includes two aspects: one is the filling of cracks, slots and holes, which can be done with repair gypsum products; Another is the curing of the wall base, which is usually done with curing agent. There are also some cases that need to be solved with stickers (kraft paper) with stronger curing ability

★ special note:

No.1 if the shovel wall has been shoveled to the red brick layer, it is recommended to make cement plastering first, and then carry out the wall sealing procedure after the cement plastering is cured and dried out

no.2 water and electricity transformation requires slotting on the wall, and the remaining slots will generally be filled with cement mortar first, but not many can be completely flat. At this time, from the two aspects of leveling and crack resistance, it is best to repair them with repair gypsum products

no.3 from the perspective of environmental protection, it is recommended not to use gypsum that needs to be mixed with glue as much as possible, which should be paid special attention when selecting products

no.4 in particular, it is recommended to use self-adhesive kraft paper for crack resistance treatment when repairing cracks, slots and holes. It does not take much effort, but the effect is obvious

no.5 curing agents include liquid ones, such as various glues, concrete interface treatment agents (hereinafter referred to as interface agents), and dry powder ones, which can be diluted with water, such as dry powder curing agents. In terms of environmental protection, the harmful content of dry powder is generally lower

no.6 function of curing agent: close the base course to prevent the next construction from being affected by loose walls, floating soil or too dry. Now regular decoration companies will roll the curing agent on the original wall first, and then carry out the next work, which can well prevent many problems caused by the wall base

no.7 sticking cloth (kraft paper): it is a more advanced sealing method with high cost. Generally, it is not necessary to do it on the wall. However, for thermal insulation walls, loose walls and cracked walls, the effect is obvious, and they should be considered for use. If the cloth (kraft paper) has been pasted, there is no need to make a curing agent, and the functions of the two have overlapped

the fourth step of wall decoration [thick leveling layer treatment]

after wall sealing, if the flatness of the wall exceeds 5mm, it is recommended to use thick leveling materials for thick leveling in order to facilitate leveling. Generally, the thick leveling material can be scraped once in batch. Try not to be too thick, subject to leveling

★ special note:

no.1 thick leveling products are very chaotic. Due to the low threshold of the industry and the lax market supervision, there are a variety of products used for thick leveling. As mentioned above, some developers will use inferior gypsum powder at the grass-roots level. This is a common thick leveling material. It is amazing that this material can actually pass the national inspection. This shows the extent of product confusion

no.2 in view of the chaos of the market, we do not make any practical recommendations for thick leveling materials, but only briefly describe the general types: from the perspective of environmental protection, it can be divided into two types: those requiring glue and those not requiring glue; In terms of basic materials, they can be divided into black cement, white cement, gypsum and ore classification. If you really don't know how to choose, come to me and listen to me

no.3 is different from the construction method of fine leveling. Generally, longer tools should be used for thick leveling, such as 60cm-100cm large scraper or 2m steel guiding rule

no.4 most materials are not recommended to have a single leveling thickness of more than 2cm, otherwise there may be problems such as cracking. It's better for workers to strictly abide by this. If the leveling thickness exceeds 2cm, it is recommended to complete it by multiple batch scraping

no.5 method of measuring the flatness of the wall: use a 2m long steel guiding rule (it is better to have a regular measuring rule), lean against the wall only, and check whether there is a gap between the wall and the guiding rule. If there is a gap, the distance between the gap is the flatness value

the fifth step of wall decoration [fine leveling layer treatment]

when the flatness of the wall is less than 5mm, you can use fine leveling materials for leveling. Fine leveling materials are generally scraped 2-3 times, and should be as uniform and flat as possible. In order to obtain better performance effect when painting, fine leveling materials are generally polished with fine sandpaper after scraping, so as to make the wall more flat and smooth. If you don't plan to paint, you don't need to polish it. [wall listen to my copyright

★ special note:

no.1 fine leveling is the definition from the function. The more popular name of this kind of material is “ putty ”, such as glue putty (such as white, old powder), porcelain like putty (also known as porcelain paste putty), finished putty powder (or paste) Etc., all belong to fine leveling materials

no.2 choose water-resistant fine leveling materials: different from thick leveling materials, the state has set a higher standard threshold for fine leveling materials, and we recommend that they be used, which has passed the " in jg/t3049-1998 putty for indoor use in buildings; N" Type standard products, which is commonly referred to as “ Waterproof putty ”. In contrast, this product is resistant to water vapor erosion and has high bonding strength, which can effectively avoid common problems such as cracking, peeling and hollowing caused by water vapor erosion of other similar products. Although the unit price of this kind of products is higher, because of its long service life, the price may be slightly cheaper in terms of annual use cost. If you take into account the high labor cost during renovation, it will be greatly cost-effective

no.3 due to various reasons, glue putty is still very popular in most parts of China (especially in the South). The use of this product has many disadvantages, and these products can hardly provide corresponding test reports. It is not only weak and easy to peel, but also harmful to human body due to excessive formaldehyde and VOC in glue. The only benefit that can be seen may only be that workers are used to it (sometimes there are kickbacks behind it), and this benefit is meaningless to the real occupants of the house &hellip& hellip; I hope this post can attract your attention, and it's not too late to repent after using it

no.4 water resistant putty will become extremely solid after being fully strengthened (5-7 days), and it will become extremely difficult to polish at this time. Therefore, it is recommended to polish the putty 1-2 days after the last layer of material is put on the wall. When polishing, apply electric light bulbs of more than 200 Watts close to the wall for lighting, and check the flatness while polishing, so as to obtain better results

step 6 of wall decoration [apply primer]

clean the wall and polish it

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