5/8" vs 1/2" Drywall For Soundproofing a Wall or Ceiling

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hello everyone welcome to sample of in this video I'll talk about

the difference between 5/8 inch and 1/2

inch drywall for soundproofing if you're

thinking of some proofing the wall in

your home what thickness wall boards

will work best the drywall thickness you

apply on the wall will undoubtably

affect the level of sample thing you're

going to acquire in this video I'll

discuss the difference between 5/8 inch

and 1/2 inch drywall and which one is

the best to soundproof a room so if

you're in the process of building or

remodeling you should consider

installing 5/8 inch wall boards on all

walls and ceilings in your home

typically in the last 20 years or so

most homes will have half-inch sheetrock

on the walls and 5/8 inch on the

ceilings of course the reason some

people use 1/2 inch and not 5/8 inch

drywall on the walls is for cost savings

but I will be talking about the actual

cost difference in a few minutes so why

do people choose 5/8 inch / 1/2 inch on

the ceiling well the reason most

builders use 5/8 inch sheetrock on the

ceiling is because the added thickness

of the drywall makes it much stiffer

another reason to go with 5/8 inch on

the ceiling is that you will greatly

reduce the chance of the drywall bowing

between the ceiling joists especially if

they're on 24 inch centers of course

when you use a thicker product you'll

have better soundproofing but why would

installing 5/8 inch on the wall be

better than 1/2 inch drywall well like I

mentioned most homes these days will

have 5/8 inch on the ceiling and 1/2

inch on the wall I'm a big fan of using

5/8 inch wall board everywhere in the

house the reason for my 5/8 inch

preference is because when we frame a

house with traditional lumber although

we use finger jointed lumber most of the

times the 5/8 inch is much smoother

drywall by making all the

inconsistencies disappear all the


between the studs are gone and giving

the wall a much better finish overall

another reason 5/8 inch is better for

soundproofing is the obvious the

thickness more thickness means more mass

and more mass means better soundproofing

and also 5/8 inch is also more durable

than the half inch option if you're like

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appreciate you leaving a comment if you

have any soundproofing questions or

comments for me to answer I will provide

links to each and every one of these

products I talked about in this video in

the description below for you to

purchase and now back to the video so

you're probably wondering what the

difference between the two different

thickness of drywall would end up

costing you if you decide to go ahead

and install 5/8 inch throughout your

house the cost difference is quite

negligible to say the least especially

when you consider the difference in

quality and durability to give you an

example for a 2200 square foot home it

costs roughly three hundred dollars more

to change from a half inch to a 5/8 inch

drywall you should ask your builder how

much the up charge would be to change

from half-inch to 5/8 inch throughout

the house and not just the ceilings the

difference in price certainly pales in

comparison with the difference in the

overall finish of the walls another

question you might have is the weight of

the 5/8 inch compared to the 1/2 inch

well we've covered why the 5/8 inch

drywall is better in the finish and also

has a better noise absorption

capabilities are you now asking yourself

if it's too heavy to handle if you're

doing this as a DIY project or if you're

remodeling your home all by yourself I

guess that would be a DIY project but

anyway the answer is yes and no of

course the 5/8 inch sheets of drywall

will be much heavier than the 1/2 inch

but now you can buy a lighter 5 inch

drywall called USG ultralight fire-code

bird edge Jibson board you can easily

find this type of drywall at your local

Home Depot or by clicking the link in

the description below USG ultralight was

designed as a lightweight alternative to

standard 5/8 inch type X panel the USG

ultralight is 30% lighter than the 5/8

inch alternative 27 pounds to be exact

without sacrificing performance or

appearance you can use these wall boards

everywhere type X boards are not needed

to reduce noise or act as a fire

resistance you could use the standard 5

inch drywall where you want more

soundproof room and use the ultralight

for the rooms where noise reduction is

not an issue the ultralight is optimized

for non rated and 30 minutes fire

partitions such as tenant improvement

project where nearly 80% of the walls do

not require an hour-long fire rating the

ideal place to use ultralight board

versus the standard boards is for

contractors that want to use 5/8 inch

wall boards instead of 1/2 inch for

improved strength and impact resistance

especially in high-end custom homes and

commercial constructions on steel studs

ultralight wall boards are also an

excellent choice in an office remodel as

long as the partitions between the

office and the conference rooms do not

need to be fire rated but now let's

focus again on the standard 5/8 inch

drywall if you wanted to soundproof just

a few walls in a home that is already

complete the simple way to do this is to

simply screw the second layer of drywall

over your existing layer of drywall in

the finished room of the wall you're

trying to soundproof of course there are

several ways that I'm going to talk

about that you can make the

soundproofing capabilities much better

by adding a little bit of something in

between the walls to give it a better

soundproofing I'll start with my


option and the most effective option is

to use resilient channel what resilient

channel does is that it decouples the

wall the goal of decoupling is to reduce

vibrations as much as possible between

the existing construction and the new

construction to help with decoupling

people can use sound isolation clips or

resilient channels resilient channel has

been around for decades and a lot of

people count on that for soundproofing

including myself the soundproofing

effectiveness happens by installing a

channel that is perpendicular to the

studs on the wall and the drywall the

goal is to form a t-shape and then

install the other layer of drywall after


this makes the drywall not come into

contact with the studs isolating the

sound quite a bit I have a full video

explaining the differences and benefits

of resilient channels and also sound

isolation clips to decouple your wall in

the link that you see pop up above your

screen and the second and also easier

option to make your second layer of

drywall much more effective in

soundproofing the wall is by using an

acoustic compound in between the

existing wall and the new layer of

drywall one of the most popular noise

proofing compound and the one that I

mostly use is from the company green

glue to give you a brief description of

what green glue is exactly and what it

does regarding soundproofing

well this compound is a VCO elastic

noise dampening compound that when

sandwiched between two layers of drywall

it greatly reduces the amount of sound

transmitted through the walls or ceiling

the compound acts as an air void between

the two layers and also absorbing some

of the noise hitting the walls or

ceiling all you need to do before you

install the second layer of drywall onto

the wall or ceiling is to use two tubes

of the compound for every sheet of

drywall make sure you get some on the

entire surface of the drywall by placing

the compound in

random pattern green blue compound will

make enough of a difference that it

makes it worth it when the cost of a

single tube is only around $20 feel free

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any soundproofing questions of your own

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help you thank you very much for

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in the next video or any other videos in

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