How deep is the old water? You don't know the "yellow sledgehammer".

The first step in decoration is often to tear down the old.

Demolishing the old is not as simple as many people think-please ask Huang sledgehammer to do it.

The old water is actually very deep and has a "technical content".

In order to make a good start on the long road of transformation, it is necessary for you to understand the demolition of the old.

The kitten summed up the points that 12 should pay attention to:

1, the first step of demolishing old buildings-protecting sewers;

The first thing for demolition workers to enter the construction site is not DuangDuangDuang, but to protect all the drainage ditches.

Otherwise, construction waste will easily fall into the sewer, and it will not be so easy to get it out again!

You can use such a protective sleeve, or you can use local materials for protection. It is simple and cheap, but it is very important.

If there is construction waste left in the sewer pipe, even if it is not blocked when moving in, there will be great hidden dangers in the future-everything was normal when I first moved in, and after a while, I found that the sewer at home was blocked more and more, and finally it was completely blocked.

The reason is that the residual construction waste in the sewer pipe does not block the sewer pipe tightly, so the sewer pipe can still flow normally at first, but after a long time, hair, oil stains and so on are easily attached to the construction waste, and then, the more blocked it is, the more severe it is.

If you live in an apartment and your neighbor's kitchen and bathroom downstairs are plasterboard ceilings, it will be difficult to clean up the construction waste in the sewer.

You can ask the demolition workers to protect the drainage ditch when they enter the site, but you can't rely entirely on their consciousness and self-discipline.

If you want to minimize the risk of water blockage, you can take a bucket to the construction site on the day when the old building is demolished, and ask the workers to help you pour water and test whether the sewers are unblocked. Then, tell the old workers the truth:

"Now the water is unobstructed, please do a good job in protecting the sewer, and don't throw garbage into it. I'll test it again when it's finished. The water is not smooth, I don't pay the bill. "

2, pay money into the money, first find out;

Don't think that tearing down the old is just paying money blindly. Some things can actually be sold. So, you have to figure out first-which ones have to pay, which ones have to go in and which ones don't.

If you can't get in or out, it means that the thing is of average value, and it takes some effort to take it away. Then, if the two are even, whoever takes it will belong to him.

Aluminum alloy door and window frames and solid wood floors can be sold as income items; Door and window glass, gypsum board and ceramic tile are all worthless, and you have to spend money to buy them. Waste wood, such as old custom cabinets, sometimes costs money, and sometimes it can't get in or out, mainly depending on the wood material.

The thicker the aluminum alloy door and window frame, the more valuable it is, and teak is the most expensive in the solid wood floor.

Although the old wires and metal pipes in the wall can be sold for money, it takes a lot of effort to remove them, and generally they can't get in or out. Whoever removes them belongs to them.

3, clear the specific location of the dump;

Generally speaking, the garbage dump is just outside the gate on the first floor of the building, and if the garbage dump designated by the property is far away and difficult to walk, then the cost of demolishing the old building is naturally higher, because it is more time-consuming and laborious to carry garbage, which is understandable.

Most of the decoration garbage dumps are placed within tens of meters outside the building gate.

Make clear the location of the garbage dump in advance, and on this premise, make clear the total demolition price. Without waiting for the start of construction, the workers sit on the floor and start to bid.

4. Before knocking on the wall, use a cutting machine to cut a knife inside and outside the wall;

Before knocking on the wall, cut a straight cut from the inside and outside of the wall with a cutting machine, and then knock with a hammer, so that the cut will be more tidy.

However, if the process of cutting machine is omitted and hammered directly, the knocked-out section will be like a dog's bite, and the later repair workload of bricklayer will be very large (the labor cost of bricklayer is very high).

Demolition workers knock casually, and the workload of bricklayers will be hit. Isn't the owner paying the bill?

5. Don't blindly keep the old floor;

Some people don't want to tear down old buildings and want to keep them. The following two points are for your reference only when making a decision:

First of all, if you choose to keep the old building, then the cost of protecting the old building should be considered comprehensively when calculating the cost;

Generally speaking, it is necessary to spread a layer of pearl cotton on the old floor first, and then spread a layer of gypsum board on the pearl cotton, and it must be spread all over to avoid damaging the old wooden floor during construction. In addition, throwing away these gypsum boards for protection also has labor costs.

Secondly, after the renovation is completed, the home will be completely new, leaving only the old floor, which will look very uncomfortable.

Owners who keep old wooden floors have little regret.

6. Dismantle the solid wood floor and remove the wooden keel and nails;

Generally, solid wood floors will have keels. Therefore, to demolish the old solid wood floor, we should not only demolish the solid wood floor, but also demolish the nails with the keel fixed together, and demolishing the nails is the most laborious.

If your home needs leveling, fill the nail hole left by the nail with "water tightness" before leveling, and then brush it waterproof as a whole, otherwise the leveled mud may leak to the neighbors downstairs.

7. Unplug the old cork at the top of the wall;

The wall and top surface of second-hand houses often have old wooden plugs left by previous decoration, which need to be pulled out by demolition workers or knocked off with electric drills. The hole left by the old cork must be leveled with cement by the mason.

Many workers will say that there is no need to pull out the old cork. However, if the old cork is left in the wall, the wall or top surface of latex paint will turn yellow at the old cork in the future, and the oiler can't repair it.

8. Consider the time point of removing the window;

Some people tear down the old windows as soon as they come up. So, during the time when the old window was demolished and the new window was not installed, did you consider that rain would come in? Will the rain leak to the neighbors downstairs after it comes in? Are there corresponding protective measures? Is it necessary to open the window so early?

If the balcony is tiled, old windows are removed and new windows are installed, it is necessary to coordinate with the decoration team leader or bricklayer to collect tiles.

Sometimes, the reason for opening the window prematurely may be that the old workers think the old window is valuable and want to sell the money as soon as possible, leaving the bag for safety.

Don't acquiesce that the captain of your home decoration will help you take these details into consideration. Every captain's experience and sense of responsibility are different, so you should at least know this, and then remind the decoration captain to pay attention to the time point of window removal.

9. The removal and replacement of the security door should be connected with the bricklayer for a good time;

Security doors are usually not removed by old workers, but arranged by merchants selling security doors to remove old doors and install new ones. To contact the bricklayer for a good time, the bricklayer will grout the new security door.

As long as you keep a bottom line-home, it's not a day without doors!

10, beware of shoveling the wall;

General walls, from inside to outside, are: grassroots walls, cement plastering, putty embedding and latex paint.

The shovel wall in the demolition project generally refers to the shovel of latex paint and putty. When decorating, Xiao Bai will feel that it is so simple and clear, so what's so tricky?

Here are two common examples:

"Report to the landlord! The putty in your house is very hard and strong, and it is difficult to shovel. Pay more! "

Try to let the construction party confirm the difficulty of shoveling the wall as soon as possible. Don't wait until after the start of construction to say that shoveling is difficult, but also add money.

If it is confirmed at the first time that the original wall skin is really hard and strong and difficult to shovel, then you can also choose not to shovel putty, at least to save the cost of shoveling putty.

Experienced master, scrape the wall with a key, and you will know it is difficult to shovel it on the spot.

"Report to the landlord! The cement in your house is aging or empty, so you need to shovel off the cement plaster and repaint the wall (cement plaster)! If you insist on not shoveling, then we don't guarantee that the back wall will crack! "

Perhaps, your cement plaster really needs to be shoveled off, but this situation is so passive that you have little choice.

So, how to avoid falling into such a passive situation?

As before, it is still necessary for the construction party to confirm the cement plastering quality of the original wall at the first time and judge whether it is necessary to shovel off the cement layer in advance. If you really want to shovel, at least have a bargaining opportunity to avoid leaving others the opportunity to sit on the ground and start the price.

1 1, ceramic tile, trying to peel off the cement layer at the same time;

When the wall brick is removed, it should be removed together with the cement layer behind the wall brick until the red brick is removed, which can reduce the risk of peeling off the new wall brick and avoid reducing the use area due to the thick wall.

Similarly, the removal of the floor tile should be removed together with the cement layer behind the floor tile to avoid the floor being too thick and reduce the height of the floor and the door.

12, demolition and reconstruction should be well connected.

If the demolition and renovation are the same team, then the connection problem is not big.

And if the demolition and decoration are two different teams, then the connection work is very important-the demolition workers should completely complete the work and then hand over the construction site to the decoration team.

Things that are easy to remove, such as the ceiling, are generally not missed, while things that are difficult to remove, such as walls that are not knocked clean and tiles that are not cleaned, are easily missed.

If the demolition workers check out and leave without cleaning up, then the decoration captain has no obligation to help the demolition workers wipe their bottoms.

If you can solve problems with money, try not to owe people.

So in addition to your supervisor's acceptance, you'd better ask the decoration captain to help you accept the labor results of the demolition workers. Only when the decoration captain nods his approval can you settle the bill with the demolition workers.

Although it is not difficult to tear down the old, it does not mean that there is no technical content and tricky. As the owner, you need to know something about demolishing old buildings, so that the decoration can get off to a good start.

The above content is shared by users who have a good life. I hope it will help you ~