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When adjusting putty, too little anti-rust paint is added, or the quality of anti-rust paint is poor. The best way is to put the nail place, dig it with a shovel blade, and point anti-rust paint.
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That's because the nails are rusty, and the anti-rust treatment was not done well, so you can find a painter to solve it.
Cracking of gypsum board ceilings is a normal phenomenon! Everything will expand and contract, and the house will be too dry and crack. It's best to have a little moisture at home, and if you don't live in it for a period of time, it's the easiest to crack, and you can solve it by making up for it for a while!
It is possible to withstand it for a long time or if there is a heavy pressure on it.
If the conditions permit, you can use the toilet, so that it will not be pressed on the stomach, and if you do not have a toilet, you can buy a commode chair to use it back, so that you can also avoid the pressure on the stomach.
Cracking of gypsum board ceilings is a normal phenomenon! Everything will expand and contract, and the house will be too dry and crack. It's best to have a little moisture at home, and if you don't live in it for a period of time, it's the easiest to crack, and you can solve it by making up for it for a while!
It's possible. This has to do with the wood and whether the wood itself is dry, as well as whether the air in the home is damp.