That's right, I bought the top floor, not for anything else, it's cheap, and I also gave away a 100-square-meter large terrace, and the total price was only 2.6 million, which is similar to the ** that doesn't give a terrace on the top floor.
When I bought it, my family was against it, saying that the top floor was too hot and it would leak, but I didn't listen to persuasion and insisted on buying itBecause I think about living on the lower floor, the noise upstairs is really annoying, I have a bad temper, and I often quarrel with others, so I simply change to the top floor, I am clean, and the neighbors are comfortable.
After the house arrived, I didn't make major changes to the terrace, and the property said that it would not leak in the short term, and I thought to myself that I would use it for a few yearsBut what I didn't expect was that after only two years of going out, the top began to leak, and there was no choice but to rebuild it to make it waterproof.
Before I did it, I was also confused, but fortunately, I did it before at a friend's house, and introduced a good master, who said that according to its methods and materials, it will not be leaked for 20 years.
Facts have proved that my family has lived for 5 years, there is no sign of leakage, the quality is really good, this issue will share with you the specific construction methods and material selection, if you need to refer to it.
In the first step, the original structural layer is processed;
If the original house was waterproofed and insulated, it could not be kept, it had to be chiseled off to expose the concrete structure.
If there are water pipes and electric pipes in the terrace, you must first do a layer of leveling to cover all the pipes, otherwise the pipes will be burned out during the construction of the hot melt coil.
Note that when leveling, it is necessary to slope in the direction of the roof drain, and finally, clean up the dust and cement slag and other garbage on the surface, so that the waterproofing can be firmly fitted.
The second step is to deal with the details of the yin corner;
In the corner of the wall, first use polyester cloth and white waterproof mortar, do one step and three coatings, the role of polyester cloth is to prevent the mortar from cracking, to achieve a better waterproof effect.
Then make a slope in the shady corners so that there is no water accumulation in the corners and corners to avoid water leakage.
The third step is to apply a cold primer;
Evenly coat the roof with cold bottom oil, wait for at least 4 hours at room temperature to completely dry, and then use rubber asphalt waterproof paint to paint the wall roots, yin and yang corner sewers and other high-risk water leakage areas, do key waterproof treatment.
The fourth step is to pave the waterproof membrane;
Here is a reminder that this step is very crucial, do not directly lay a large area of coil.
An additional layer has to be done first, and many construction teams will skip this step in order to save labor and materials, which greatly increases the risk of water leakage.
The correct way is to use the hot melt method to pave a membrane larger than 20cm wide in high-risk leakage areas such as wall roots and sewers at the yin and yang corners, so as to meet the requirements of technical specifications and ensure that there is no water leakage.
The fifth step is to lay the coil and bake it with full stickiness;
It must be full of sticky and baked, spread while baking, pay attention to the lap part of the coil should be at least 10cm long, and the matching place should be heated with a spray gun and hot-melt edge sealing. After laying the membrane, water should be stored for 24 hours to observe whether there is a leakage point.
Step 6: Make an insulation layer;
The insulation layer is to insulate the roof, and my house, which is not in the position of people, is made of an overhead layer, and achieves the insulation effect through air flow.
For those terraces that need to go to the terrace, 5cm thick extruded plastic board (a type of insulation board) is used, which is directly laid on the waterproofing membrane.
Step 7:Make a protective layer of cement mortar, level and slope, and finally paste the floor tile or anticorrosive wood floor.
The waterproof layer that comes out of this way is very safe, my family has been using it for 5 years, and the worker said that it will be no problem for 20 years, and I am looking forward to it.
Moreover, the overall cost is not high, an average of 110 square meters, or very cost-effective, how much does it cost to do waterproofing at home? Welcome to leave a message in the comment area