In recent years, I have made a little money, so I want to buy a suite outside, but my father has always objected and has to go back to his hometown to build a house. That's okay, but you say that this house in the north doesn't even do exterior wall insulation, do you want to be cold in winter?
Later, I asked the master if there was a solution, and the master said that because our place is not a very cold place, it should be warm enough to turn on the heating at home, so I can rest assured. The master also said that generally if it is a very cold place in the north, it is not necessary to do the insulation of the internal and external walls to keep out the cold, in fact, it is almost the same to directly thicken the external walls.
If you don't want to install air conditioning or heating at home, you can just do the insulation of the exterior wall. Generally, the exterior wall must be cleaned first, and then the wall surface must be kept flat, so some raised dirty things should also be removed. Then you can clean it with water, and wait for the wall to dry before you do the next step.
Then use some professional mortar to paste the plastic board on the exterior wall, but pay attention when pasting, be sure to smooth and compact, and the thickness should be uniform. After the first time, it will take a while to wipe it a second time.
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This kind of exterior wall work takes about a week to maintain, but after the insulation of the exterior wall is done, no other tiles or anything like that can be pasted.