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Upstairs to do floor sound insulation and shock absorption is the best, if you can only do the ceiling, it is recommended to add a shock absorption hook on the boom, and then use professional sound insulation materials to make the ceiling, such as damping sound insulation board, damping sound insulation felt, plus sound insulation cotton.
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When the ceiling is filled, the rock wool board is filled to make sound absorption.
The floor slab of the bathroom is leaking, first you need to determine the cause of the leak: >>>More
First of all, you have to find out why it is getting worse and worse, and there must be a reason why business is getting worse. Whether there are more stores next to it and there is a lot of competition, or the flow of people is getting less and less, just find the cause of the poor business and prescribe the right medicine.
This may be that the waterproof layer has been destroyed! Water leakage caused by water accumulation in the caisson! It is recommended that you find a local maintenance master to do a waterproofing! Hope it helps.
Is it that the toilet upstairs flushes loudly. You can do pipe soundproofing and just deal with it.
Don't dare to fart, why are people still alive?