What thickness of insulation is best around the house?

Some swear by 10, some swear by 15, even 20 have risen in me. It is a question of how much difference there is between them in terms of heat and sound insulation.
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1 Answer

Answer :

I just talked to someone about this. The fact is that the thicker the insulation material, the better the insulation. Since all work processes are the same with thin insulation as with thick one, the project only costs more with the price of the insulation material. I think if you have money for it, be sure to opt for the thicker one because it’s an investment for life that will only bring you money.   
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