You might expect it to be easier to install a lot of soundproofing material in order to make your room or home quiet. The simple truth is that it is easier and less expensive to make a room airtight than it is to purchase a lot of insulation or drywall.
The best way to do this is by filling in any gaps or cracks with acoustical caulk. The problem with this is that you can’t necessarily seal all of your heating or cooling vents with caulk. In these types of situations you’ll have to purchase creative magnetic covers to put over the vents when they’re not in use!
Airtight soundproofing is very easy to achieve and in many cases is the only solution you need. Check your home or room for cracks through which sound can enter or escape – then seal them up!