How can I make my room soundproof for free?

To get a quiet room to be alone, or a recording studio, or a music room, you have to make the room soundproof. Read the description below for useful advice on how to soundproof rooms either in a cheap or a professional way.

1. The Easy Way

1. Install a sound curtain or thick blanket:

You can absorb some sound by placing a thick blanket against the wall. If you are willing to spend a little money, buy a thick sound curtain instead.

-If you have thick, insulated walls, this will have a bit of an added effect.

2. Use a bookshelf:

You can make walls thicker and more soundproof by simply using bookshelves. Cover the walls with bookshelves filled with books for an effective sound barrier. Plus, you’ll also have a pretty library as an added bonus.

3. Block objects that are easily wobbly:

Have you ever heard a neighbor play music very loudly and make a loud buzzing, rattling and vibrating sound? Yes, that’s the reason why you should wedge things like loudspeakers. Use vibration damping pads to keep things like loudspeakers from disturbing those around you.

4. Install a door sweep (a rubber pad like a broom that is installed under the door):

Nail these rubber pads to the bottom of the door to seal the gap. If the gap is too wide to cover with a sweep, put a piece of wood under the door first.

5. Use acoustic damper panels:

Use acoustic damper panels

Purchase a panel that measures 30.5 x 30.5 cm with a 5 cm deep groove. This panel is very good at absorbing low to high-frequency sound. Some panels have been equipped with adhesive glue. Use spray glue to attach the panels to walls and ceilings if the panels are not equipped with adhesive glue. You can cover all or part of the surface, depending on the level of tightness you want. This will reduce the ‘noise’ in the room and make your ears comfortable, especially if the room is used for music practice.

– Use panels that are mostly fiberglass with an outer layer of thin, perforated Mylar. This type of panel is the most superior in terms of sound absorption among almost all silencer panels except for special panels which are the most expensive. The benefits you get are well worth the money you spend, much better than other products on the market.

2. Building a Soundproof Room

1. Use thick material:

The thicker & denser the material, the better the damping power. Consider using drywall (building material used to make walls) as thick as ⅝ “(1.6 cm) rather than using a thinner measure.

-If you’re repairing an existing wall, create a baseboard for the wall and attach it to the surface, so it can hold it against the existing boards. Cover this with a new layer of drywall or sheetrock.

2. Separate the 2 layers of the wall:

Whenever sound passes through new materials, some of its energy is absorbed, and some is reflected. Enhance this effect by building a wall made of two sheets of drywall or sheetrock, with as wide a gap as possible. This is called decoupling.

-Decoupling actually makes walls not very good at blocking out low-frequency sounds, due to the echo in the walls. If the distance between the walls is only 2.5 cm or less, we recommend using a dampening compound to counter this effect.

3. Fill the walls with a dampening compound:

Fill the walls with a dampening compound

This magical substance converts sound energy into heat. It can be used between layers of walls, floors, or ceilings. Unlike most other methods, this will absorb sounds that have low frequencies. This is perfect if you like the loud bass that comes from your music and home theater systems.

-It is also sold in the form of sound-absorbing glue or viscoelastic adhesive.
-Some of these compounds can take days or weeks to “display” their full potential.

4. Insulate with other materials

Damping compound is one of the best multi-purpose silencers, but there are many other insulating materials.

-Fiberglass is cheap and quite effective.
-Foam insulation is a poor sound absorber. Its main benefit is as a thermal insulator.

5. Design your board placement:

Most walls contain a single row of boards attached to both layers of the wall. Sound can pass through this board easily, so it can frustrate your hard work. When building a new wall, choose one of the following plank placements:

-Two rows of boards, one of which is installed along each side of the interior. This is the best sound-muffler method, but it requires sufficient space to provide a gap between the two rows of boards.
-A row of uneven boards, which are alternately placed along one side of the interior, then on the other.

6. Make floors and ceilings soundproof:

Floors and ceilings can be soundproofed using the same system used for walls. Most often, homeowners add an additional layer (or two) of drywall, with dampening glue in between. As a simple addition, cover the floor with a dampening mat, then apply a rug over it.

-You don’t need to soundproof the floor if there’s no space underneath.
-Ceilings made of heavy concrete will not benefit much from adding a lot of drywall and dampening compounds. Instead, add a layer of drywall with air gaps in between, or fill the gaps with fiberglass insulation.

7. Consider a clip or sound channel:

Both are placed between boards and drywall, which provides additional soundproofing. There are two main options:

-Sound clips are the most effective way, which absorbs sound with a heavy rubber component. Screw this material into the board, insert the drain cover, then screw the drywall into the channel.
-Bending ducts are elastic metal conduits designed for sound suppression. Screw this material into the board and drywall using a screwdriver. This can increase the ability to block high frequencies at the expense of low frequencies.
-Note that the drain cover is not effective at drowning out sound.

8. Fill in the gaps with acoustic putty:

Even small cracks and gaps between materials can reduce soundproofing. Special acoustic putty (also sold as an acoustic sealer) can fill these gaps with an elastic, soundproof material. Fill in any gaps, as well as creases across walls and windows. Note the following:

Fill in the gaps with acoustic putty

-Water-based putty is easier to clean. If using a solution-based putty, check the packaging to make sure it is not harmful to your materials.
-If the putty doesn’t match the color of the walls, choose a putty that can be painted over after applying.
-Consider using regular putty to fill in small gaps, as acoustic putty is more difficult to work with.

9. Install soundproof panels:

Install soundproof panels

If the soundproofing in the finished space is not strong enough, you can also use acoustic panels. Cheaper options are available, but the more expensive panels will certainly be more effective.

-Be sure to attach this material to the wallboard or other sturdy structure.

Tips for soundproof room:

1. Replace ceilings made of hard cellulose tiles. These tiles usually reflect sound.
2. Putty the gaps around the holes used for lamps, etc. as well as on the periphery of the ceiling.

Warning while making a soundproof room:

1. Major repairs or alterations to walls, floors, and ceilings can only be done under the supervision of an experienced person.

2. The standard STC soundproof grading system is not always useful. This rating system does not take into account any frequencies below 125 Hertz, which include music, traffic, airplanes and construction sounds.

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