To block noise coming from outside a room such as traffic noise or noisy neighbors you need materials that have a lot of mass.
Insulation to block noise.
Luckily there are many ways to improve the stc ratings on your walls and help block more sound.
Effectively soundproofing a wall calls for employing a variety of strategies together and filling the wall cavity with blown insulation is one of them.
In some buildings they may add a layer of fiberglass batt insulation to help with noise and temperature control.
It is installed in the attic right under the roof and reflects energy from the sun which keeps your home a lot more comfortable but doesn t act as a sound barrier at all.
In addition you may use materials or methods that separate or decouple the parts of a wall or floor so that sound waves don t vibrate right.
They will work as a sound barrier to minimize sound transmission.
Sound blockers are typically hard heavy thick or in some cases flexible materials that reflect noise.
However not every type of insulation reduces noise.
The quickest and cheapest solution is to add a single layer of regular 5 8 drywall over your existing walls.
How to dampen noises with blown insulation.
Soundproofing materials and sound blockers keep noise from traveling through walls and floors from one space to another.
Reflective insulation such as radiant barrier works by reflecting radiant heat from the sun.