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All You Wished to Know About Soundproofing Foam Sprays

Arjun Kulkarni Sep 29, 2018
A soundproofing foam spray can help you soundproof the walls of your home. While it can be done by experts who'll charge you phenomenally, here's a DIY guide to use a soundproofing spray.
Well, initially it may be nice to be that guy in your building who has all the scoop and gossip. But eventually you're going to get a little fed up with the continuous rantings from next door at God-knows-what hour. So when that time does come, what will you do?
Don't be under the impression that soundproofing is only for those rich music playing chappies or for your downtown office. With the help of soundproofing foam, it has become pretty much a DIY activity.
While there is no difference in the quality, these sprays are cheap, easy to use, and you don't even have to pay those so-called 'soundproofing experts'. And the result? A house where you don't have to hear other people fighting, and besides your own dirty laundry stays inside as well.

Using a Soundproofing Spray

1. A soundproofing spray is made of liquid polyurethane which solidifies into a solid spongy material when it comes into contact with the wall. Such a spray foam along with soundproofing the room also protects the walls from outside elements, pests and mildew.
2. For a beginner, the use of studs is very important. Place the studs at small distances along the wall for a start to give you some idea as to how to go about the soundproof foaming. Make sure you also have a wet rag at hand in case the sprays go wild. You don't want to soundproof the wrong wall.
3. You have to drill a hole between the studs. Preferably the measurement should start from the top of the wall, the first hole one-thirds and the second hole two-thirds of the distance between each stud. Once you get confident with the holes, you can make fewer holes, maybe only one between each stud.
4. Then go from the bottom hole, upwards. Push the nozzle spray into the holes and press button to release the foam. Note the amount of time taken for the foam to fill the hole before proceeding. This will help you understand approximately how much time it takes to fill a hole.
5. Spray till the foam is dry. Then proceed to the next hole. You can calculate the time required for one hole, and on the basis of that go on with slightly longer spaces between the holes. Repeat the step for the next studs. Remember that you have to put a little less in the one-third gap hole.
6. Continue this process for the entire wall/room that you want to soundproof.
7. Two things to take care of are the rate of foam expansion and whether it is petro-based or not. Polyurethane foam spray generally expands 50 times the amount you spray on the walls, so be careful about the quantity you spray.
8. If the foam is petroleum-based, do not ignite fire (like matches, a gas grill) or there will be severe consequences.
Soundproofing is good for people living in apartments and condos because it will help cut the noise from next-door. It also helps protect the walls of your house by creating a protective shield over it and thus avoiding breaking of walls and pest intrusions. It also doesn't allow the growth of mildew over the walls and keeps them dry!