7 WORST Soundproofing Advice! NEVER Do Number 6!

In this video, I will be myth-busting some of the worst advice when it comes to soundproofing a wall! Soundproofguide.com
There is a lot of really good soundproofing advice from soundproofing websites and KZbin videos. But, with all the good there is also some bad. There is some very bad soundproofing advice and hopefully, with this information, you will be saving some time and money.
Click the link for some of the best soundproofing products to soundproof a wall. soundproofguide.com/best-soun...
Click the link for my top 15 picks for best soundproofing material to soundproof a door, wall, or window! soundproofguide.com/best-soun...
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Awesome Videos You Should Watch To Fully Soundproof a Room!
15 Ways to Soundproof a Door - • 15 Best Ways on How to...
Soundproofing Windows - • Window Soundproofing -...
Soundproofing a Ceiling - • How to Soundproof a Ce...
Soundproofing Floors - • How to Soundproof an A...
Articles to check out for any soundproofing projects! Especially the DIY!
1. Doors - soundproofguide.com/15-best-w...
2. Windows - soundproofguide.com/how-to-so...
3. Floors - soundproofguide.com/how-to-so...
4. Ceilings - soundproofguide.com/how-to-so...
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[@PMitchell106]

3:06 Foam Panels 4:20 Soundproofing Paint 6:13 Soundprood Wallpaper 7:13 Cellulose insulation (spray foam) 9:23 Egg crates 10:35 Mattresses 11:07 Dark colored walls

[@pratik8757]

Thanks

[@MsG-cb8tr]

Not all heroes wear capes

[@SoumikSeth]

Thank you so much.

[@hazelsunderstood6784]

Thanks.

[@randomcreativenames]

thx

[@jonathancarpenter8007]

lol Mattresses actually work really well. Back in high school my buddy played the drums in some band, and he would practice in a room on the 2nd story of his house. Every time we didn't put mattresses over the windows and doors the neighbors would call the cops. It made a HUGE difference.

[@pimlico3225]

Googles "How to drill mattresses to the ceiling"

[@yutagisa]

At a Boarding school where I had to spend a year, they had a Music room that also had old mattresses from the student dorms on the walls 😂

[@BeetleBuns]

yea once he said mattresses don't work well I decided he was a hack

[@saulvelasquez1854]

Or o

[@GBLynden]

This is helpful info! What are your thoughts on cardboard and cork board used to make a sound blocking sandwich?

[@robstewart2388]

Love the content and I am currently binge watching. Wondering if you think reducing echo through sound absorption is valuable for very low-frequency sounds (the ones you can feel and hear at 3am)?

[@emceeunderdogrising]

I was on a really tight budget. So I built a vocal booth out of PVC pipe and moving blankets. I then filled it with foam. It gets hot. But it really was a great solution on a small budget. Made a huge difference.

[@sirnuggets9666]

I want to do the same thing, how did you use the foam? Did you fill the insides of the pvc so its not hollow? I want to try making a small one as a test to see if it works. I've heard moving blankets stacked on top of eachother works great and they're really cheap

[@jcs6206]

Good video... once again you "dumbed it down" enough for someone like me to understand, yet kept it interesting - THANK YOU!

[@soundproofguide]

Thanks for watching! 🙂

[@nancyjerrell3240]

Thank you for the videos! I've been learning a lot! I want to reduce low-frequency noise coming through existing walls. I was considering adding a layer of MLV and sheetrock. Then I noticed the gap between the sheetrock and floor. While the gap is needed for possible expansion, I assume it allows noise to leak under the walls. Is there any value to adding MLV to baseboards as well? If I decide to add a layer of sheetrock, I'll be replacing the baseboards anyway. Thank you!

[@LascielInviere]

Dark paint in theory should have an affect on sound level, just not one you would ever be able to distinguish with the human ear, you may not even be able to detect it with a meter unless you've got some expensive toys. The darker the paint the more pigments it has, the more pigments it has the more mass it has. But... It should (in theory) have an affect.

[@raymondlefevbre2295]

Good advices! Thank you for making good content. I have a question. Soundproofing a drum studio. Going with either Roxul SnS or the pink quiet inside walls. 2 x 5/8 sheets. I was wondering if floor soundproofing material would work between the sheets? Thinking of the recycled tire one or the metallic, gold one. Instead of Green glue?

[@m3ng0789]

Hi, I have a question, is it possible to have the absorption in the room to be enough to weaken the sound wave travelling out of the room so the other room will hear significant lesser sound? Like putting up a wall of acoustic panels?

[@johnchang7215]

How would you rank the soundproofing effectiveness of MLV, viscoeastic per mfr. recommendations, sound insulation like Rockwool, compacted layers of cotton towels?

[@tingkagol]

3:06 list starts here

[@youtubeaddict5663]

Thank you!

[@johnchang7215]

Nice video, very informative. Thank you.

[@eddielee9763]

hi, thanks for this video. May i know whether polyester fiber cotton is good in sound proofing?

[@c.n.h4841]

I have heard that using Roofing paint on quarter inch fiberboard Sound deadening a room Because it is a rubberized base Do you know if it's true?

[@hans990]

We have a furnace / HVAC room that share a wall with a bedroom. So is it better to soundproof the wall from the side of the bedroom? Or add absorption or noise deadening material in the HVAC room?

[@stevereese6488]

If you have 2x6 walls, 2” of closed cell on the outer wall serves as a vapor barrier and closer to air tight, you can then come back with the remaining 3.5” of open cell that is slightly better than the unfaced fiberglass insulation per the engineers up in north Texas that tested different insulation STC values. But you will need a separate second wall with the pink stuff unfaced insulation. Double layer 5/8” Sheetrock with green glue or mlf on inner wall and same weight per square foot exterior like 5/8” minimum OSB and Hardy board siding or brick etc… double 5/8” Sheetrock is a little over 10# per square foot. They do make 3/4” tong and groove OSB typically used in flooring then you could use the Hardy panels 4’x8’x 1/4” thick like for soffit as the exterior. But at least match pound for pound on your interior and exterior or more on exterior.

[@zosolopez3032]

Ok so I install epdm roofing which is .045 rubber. I'm thinking of gluing that to 1/2 inch celotex fiber board that is also glued to the walls. Then after that building a room within that room using the drywall with the acustic block layer sandwiched between 2 dry wall layers. Any experience or thoughts on epdm ?

[@SaraNakaLivingBalanced]

You have some good tips in your videos. I need to soundproof a bedroom From sound AND vibration from road noise (cracks in the busy road and a gap in the retaining wall vibrate the house) I rent so I cannot get into the wall. Sound blocking curtains and white noise help some what. Still feel the vibration. Suggestions? Thx

[@cerdic6867]

Would you include saarpor soundproof liner as being useless? It is advertised to mitigate high frequency sound and doubles as an actual insulating/anti damp liner hence why i am considering it even if it does turn out to be useless. But ive not used it before so dont know if theyre just lying about that or not.

[@mirlamurillo3473]

Great videos!!

[@zebel2day4]

Hi for budget reasons I was thinking of using 5/8 drywall with green glue between the original drywall. I would then use a window insert for the window. could this work for someone on a budget? Greg

[@CyberBeep_kenshi]

Was testing today because i noticed echos when i clapped my hands. Used the large cushion from my garden bench, and it already got rid of 90%. Now to find a more proper solution lol

[@alexpavtch]

hi, does cork work? thanx

[@gurdyvilkhu1107]

My new home by Taylor wimpey is really bad for sound issues 😕 I can hear neighbors yawn, so I got soundproof boards over the dry wall on shared wall, but the sound seems to travel through the ceiling now and down the cavities of the walls that are not shared 😑😑😑 what should I dooooo 😭

[@thestylesworld]

What do you think about making acoustic panels with cellulose insulation batts for acoustic treatment?

[@austinporter4285]

Im in the phase of building a home theater and i honestly want to do something off color even if ot dosen't work so due to the fact my walls have holes everywhere already im going to use the rat poison spray foam against your advice since i have a lot, i do however respect your advice! but i will also be painting the wall with liquid flex seal and putting 2 inch thick aurelux foam over the flex seal after it fully cures! Will i get good results?... well idk but i hope it at least sounds a tick better! Please if anyone thinks they know what my results will be PLEASE feel free to be honest!

[@andreemilsen369]

Hi. I have used eggcartons, in layers of 4 stacked (little bit of air between layers), and thick curtains around the room, eggcartons strategicaly, curtains all the way. And, it actually sounds a lot better to me, and dampens the sound to the next room (kids room) by a signicant amount. It does not help my neighbour 100 meters away much though (subs go down to 11hz). I buy the cartons cheap at a farmer store, 30 bucks for 300 ish pieces. 30x30 cm aprox. I'm planing to build another layer of drywall the coming summer, to help my neighbour a bit. Would you say that drywall+greenglue is efective, or is greenglue a vaste of money? So many different opinions on this 🤷‍♂️

[@Imhim247]

Hey! I'm trying to reduce the sound in my hear. I got a hearing problems. I'm trying to find the correct to block the sound in my room. Any suggestions?

[@0togtr811]

Yes, remove your hearing aid batteries.

[@einewid]

We live in a 2 story and the 2nd bathroom is above the kitchen, which is not a good thing. We are looking at MLV for soundproofing the floor but are hearing different feedback about it. We understand that MLV will only reduce the air carried sounds like a tv or someone speaking, not anything like steps or dropping something on the floor. We plan on putting MLV below the subfloor, then tile. We also plan on putting new Vinyl in the upstairs bedrooms without removing the subfloor. Question - can we put MLV under the Vinyl?

[@vl292]

Soundproofing and sound absorption go hand in hand. That's like science and better not argue with science.

[@gamecity7265]

What's better between, Scare and Round space to keep the sound inside ?

[@LLUEVE]

We recorded I. The 80’s with nkotb and when we were in hotels, he lined it with mattresses for vocals. No one even knew…

[@madisonmacmillan8680]

Omg this is educational and hilarious I’m subscribing

[@lisajouet4943]

why hilarious?

[@emmalouise3898]

Can I use mdf screwed to a internal wall to block sound?

[@adailyodyssey]

Egg crates work for small places if you cover the 5 walls plus carpet on ground. We had a jam studio for the band like that

[@andrewsobey2873]

Hi Martin, Thanks for the video. I have a new renovation with painted drywall and vinyl flooring. I’m looking for something to reduce the echo down my hallway and in my bedroom. I’ve seen some polyurethane hexagonal panels on Etsy. What is your opinion of these for reducing the echo? Also some of these KZbin commenters are pretty harsh - picking on your English grammar. Maybe lockdowns are making them cranky 🤣. Keep up the good work 👍🏻

[@zajazaja9101]

Hi, I would like some advice from you. I live in 5 apartments building. Have no money or space to reconstruct walls. My neighbors say that my familiy is loud but we are wery careful abot that. Even talking with my husband in heated dabate( not yelling) . What would be your adivce, to soundproof two rooms even a liitle bit in some reasonable price, the rooms are 20m2 and we share two walls. Neighbours below me i dont hear and viceversa. Thank you

[@noneovyerbusiness4909]

Does thin carpeting covering a wall help?

[@optimusvader7823]

Thank you for a great Video . My question is ... What is the best way of sound proofing a room for example my Home theater . Two off my wall behind the drywall is Made of masonry Blocks and the other two are metal studs. Some people suggest MASS LOADED VINYL , Others 2 pieces of 5/8” drywall with green glue in between and others Resilient Channel with 2 pieces of 5/8” Drywall ( green glue in between)! Which of those is going to have the best STC RATING FOR LEST PRICE AND WHAT IS THE BEST CAN MONEY BUY ( 2 questions in one ) ? Thank you for the answer .

[@soundproofguide]

I actually just made a video about the ONE best way to soundproof a wall for things like a media room where you really want to not only block sound but almost help with vibrations flowing through the rest of the house. Watch it by clicking the link. kzbin.info/www/bejne/b5OveYaKmZt7mbs Hope this helps!

[@cornerstonebaptistchurch2024]

Hi I'm from India. Im planning to soundproof a medium sized room would you please suggest something under budget.

[@mihaisodolescu7224]

Is cork good for soundproofing ?

[@toddroy9558]

Will carpet squares on the walls help with sound proofing? Or will it help with sound conditioning? Or none?

[@virginiaoverlander4720]

A second layer of 5/8 drywall with STC 62 rated floor Underlayment sandwiched between them. I don't know how effective it will be however it only adds $140 to the cost of the drywall alone (for my 400 square feet of wall). In theory with it's impact and transmission sound blocking values in addition to reducing vibration while decoupling the layers of drywall i hope it will do well. Thoughts or comments?

[@nisshoku1568]

So I'm confused now, I saw some Videos of people using the foam to sound proof their room, then went into the other room to check and it worked, what's happening?

[@krakenjm6877]

Well I mean 2-3dB is still very significant considering how the scale works (for those who don’t know decibels work on a logarithmic scale, every 3db is cutting the volume in half basically)

[@peterwilks1959]

I've been in a sound proofed studio. They filled the stud walls and door with sand. It seemed to work really well.

[@sirnuggets9666]

best way to reduce sound is through mass, fine grain sand is as good as it gets really, except maybe just straight up brick walls.

[@deimosphob]

I've seen rock-wool used as acoustic paneling that I do believe does help sound-proof. Custom made with wood framing ofc but it does seem to work.

[@i.k.8868]

If the acoustic paneling is freestanding from the wall, yes it works absolutely. I built a timber framed wall just in front of the old single width masonry dividing wall in one room, while a different room I kept the original situation. My housemate never even hears a peep from the neighbors, while his room is next to their living room. At the same time I can literally hear them flip a light switch or type on a keyboard... I'm not sure about the economics of the material, but if you have some rock-wool lying around you may just as well put it to good use!

[@JesusChrist-ir1td]

@@i.k.8868 Soundproofing walls is a matter of putting a textured surface on the problem wall. You should seal it as well, so no gaps along the skirting, etc. It won't do much but it's on your side. When we plasterboarded homes (sheetrock) the wood partitions walls around the toilets had rockwool type insulation within. That was the only thing that stopped your gf hearing your dad fart! ;-)

[@gem_trades4673]

Hi, great videos. I am trying to sound proof some walls and a door and was wondering if MLV would be effective without having to add another layer of dry wall? Thanks

[@soundproofguide]

It won’t really be that effective since you’ll need to cover the entirety of the wall and not leave any gaps.

[@gem_trades4673]

@@soundproofguide so even if I cover the whole wall with MLV it will not have any soundproofing effect without adding another wall?

[@Feedback4Utoday]

Thanks for the options. I have very anoying neighbors who are talking all the time & laughing. of the choices I think I prefer adding wallpaper & I'll make it look like brick or maybe concrete for extra sound removal. would the concrete be a bit better?

[@robpruden4172]

I’m trying to build a vocal booth in a poorly insulated garage. My main mission is to make it absorb the outside sounds (sirens, helicopters, and passing traffic) and contain all sound inside the booth. I’m going to build the booth itself out of lumber but I need to figure out how to layer my absorption and proofing to make it happen. Btw the current booth is made of mattresses, other than outside noises it deadens the space a lot.

[@colby9743]

I can relate with outside noise. Building an acoustic booth requires various materials. It depends if you're working with 2x4 or 2x6. Good luck on your project. 🤟

[@lotrswst]

I rent a house built in 1920’s with wooden floor , when upstairs neighbors walk it sounds like they are thumping, what should I do?

[@frostflower5555]

I can't find soundproof wallpaper anywhere but I noticed that craft board has some kind of thickness and it is a bit spongy, would that help?

[@colby9743]

I was thinking the same. Found out that Home Depot has rolls of the same type of material. Also, I'm going to try rolls of foam flooring and Wooden plank flooring protector.

[@22rsx]

Great video, I live in a small condo. The hallways and staircase are covered in a thin carpet. No underlay and it’s very noisy. What would you recommend to put underneath the carpet that’s cost affective?

[@soundproofguide]

There are rubber underlay that works very well. Mass Loaded Vinyl also works well in deadening that footstep echo you’d be hearing on such floors. Here’s an article about this very subject. soundproofguide.com/top-5-best-soundproof-carpets-and-flooring-material/

[@soundproofguide]

Here’s an article talking about that very question with different ways you can go about it. soundproofguide.com/top-5-best-soundproof-carpets-and-flooring-material/

[@1dimtim]

I need to stop the sound from reaching the neighbors as cheap as possible how do i go about this??? i was thinking of just putting a load of duvets on the wall? help from anyone that knows would be greatly appreciated!

[@1dimtim]

its to stop guitar noise.

[@CLCTaYLoR14]

Is there a video on how to soundproof impact noise from upstairs neighbors in an apartment?

[@Microxz141]

there's a video on utube comparing sound when there's a spray foam or not. 5-6 inches of spray foam reduce the sound by 20db. and it's tested with a device. so idk if it's completely useless.

[@lydvincecruz824]

Thanks for sharing before I put my money to waste.Very much appreciated.

[@soundproofguide]

Happy I could help!!

[@derren88]

egg crates don't absorb anything of consequence, but they can help to diffuse high frequency reflections. That being said: they suck even at diffusing because of their uniform shape.

[@flowersafeheart]

I heard paintings or blank canvasses. And thick rugs or thick wall tapestries. I once saw an entire small room walls covered in thick rugs, like Persian rugs. Would love to hear if any of that really works.

[@sirnuggets9666]

carpets work, except they're expensive per foot for wall coverings and heavy so you need something that can bear its weight.

[@zackmurray4992]

Does the egg crate foam from a hospital bed work?

[@andyc9902]

Can bubble Wrap help

[@lorrieealy8634]

I need to tone down the rain sound on my outdoor, metal roof, covered deck. So loud when it rains hard.

[@Emily-gr1em]

I have a bedroom I’m trying to sound proof because I hear EVERYTHING from my room. I saw these foam decorative bricked panels , what do you think about those? Would they be effective enough or is it just marketing ?

[@soundproofguide]

Those are more for sound deadening the inside of the room and unfortunately won’t do much to soundproof a wall.

[@rjtaylor3535]

How about cutting holes in interior walls and blowing in insulatio?

[@captainjerk]

I have painted my bedroom black. It did nothing to my mood, other than be the color I wanted. LOL It did nothing to the temperature, and nothing to the sounds in and out of the room. Paint is paint, unless you change it's content. Pigment in paint has no affect on your room temp, unless you put it on the windows! LMAO

[@peanutbutter1998]

I have a small closet I wanted to turn into a recording booth and I used styrofoam insulation boards on 2 sides of the wall that I wanted to soundproof. I haven’t seen a difference but what are your thoughts? Is this useless? Should I do another layer to get good results?

[@soundproofguide]

Styrofoam insulation won’t really work that well on their own, especially for a small closet. If you install 5/8” drywall on top of the insulation you should notice a bigger difference. Also, don’t forget to seal the electrical box. The holes on them and the gap around the box will let a lot of noise in and out of the closet. Hope this helps!

[@peanutbutter1998]

Soundproof Guide Thank you for replying. If I add a layer of drywall to the foam boards, the closet will get too small. Should I get rid of the foam boards and add drywall or mlv instead?

[@user-dx8dc1be5k]

Funny how your echos went away when you lifted up the acoustic foam panels.

[@nonobrochacho240]

Egg crates caused the fire at that nightclub in New Jersey where like 150 people died too.

[@jackofeverythingmasterofno7804]

heavy punching bags for corner bass traps?

[@ghettobrown1121]

What about carpet? if you hang rugs all over will that be effective at all?

[@willowwobble]

Thanks for the great advice and invitation to write to you. I live in the UK in a 200yr old terraced / row stone wall house. A nearby road has become very noisy, as has an ajoining neighbour. It's the low pitched traffic noise that is the worst ..lots of self-centred guys (it never seems to be women) have changed their car and motorbike exhausts so they roar and pop like racing cars etc. The problem with adding any form of cladding or extra material to the walls is that the walls have no damp course and need to be able to 'breathe' or they become damp and can cause conditions for mould and fungus to grow. You seem to be knowledgeable and have wide experience about these things, so I welcome any suggestions...?

[@0togtr811]

It's simple, put a much louder exhaust on your car and go make noise by those that are irritating you, they'll get the picture.

[@victorvek5227]

Moving blankets on doors & DIY acoustic panels filled with old towels. Cheap & effective

[@juliusmanalo6794]

My question is if in goundfloor, and ther s a room on th other side of the wall do i have to soundproof the floor for drumset?

[@soundproofguide]

I wouldn’t worry about it if you’re on the ground floor. A drumming mat should be good to absorb the vibrations from spreading around the room and going through the wall.

[@craigbradl4139]

Get to the point

[@bonarlibor3067]

Polystyrene sheeting?

[@austinporter4285]

Liquid flex seal painted on walls? Multiple coats? Aurelux foam after curing? I made a longer post that im already in the process of this lol.

[@bensmart6518]

How about packing blankets?

[@FlightCrewCustom]

What would you recommend for soundproofing a ceiling to prevent high frequency noise (think vacuums, tools) from transferring through the air to neighbors above? Or do you think that’s even necessary? Would 1/2” dense carpet padding on the ceiling help in any way, too? Instead of coating the ceiling with MLV and laying a drywall layer, and stopping short of reframing the room for a room within a room idea, what methods would work best to block the high frequencies from transferring to the neighbors above (in addition to of course covering vents and using your advice on the doors and windows :p). I have about 15 spare moving blankets, three long blackout curtain panels readily available and have added carpet temporarily to the floors as a start. (This is in a rental property) Thank you!

[@tatebraboy4411]

I have the same problem hope he replies!

[@Lughnerson]

Another layer of 5/8" sheetrock.. Also use "green glue" between the sheetock layers.

[@0togtr811]

It's simple move to a stand alone house, problem solved.

[@hectorgrande8000]

This guy is sitting pretty high up on an even higher horse. He seems to enjoy putting people down and acts pretty superior. I wish i was as awesome as he is. Hey can you make a video on the “how to be better than everyone and degrade a person the right way”

[@yesscience4197]

What about the sponge ?

[@oinkooink]

You nailed the audio in this. It's all distorted and weird. Nice one BRO.

[@soundproofguide]

😩 it gets better, trust me!

[@chimdaluonwualu7901]

What of towels?

[@randalripley8381]

Everything I've read states that each layer of soundproof paint adds about 2-4 DB of sound reduction. If I have to paint the walls anyway, 6-12db of sound reduction doesn't hurt if the alternative is zero. If I'm gonna run mass loaded vinyl, additional layers of drywall with green glue, and buy acoutic panels... might as well "whole ass" the project and get that 6-12 db when painting my walls.

[@kazishams7778]

how about rock wool?some people says rock wool is a better option for sound proofing.

[@teresatrebal640]

Yes, thank you for posting the ones that don’t work. About soundproof curtains? Do they work? Thank you.

[@soundproofguide]

They do little at blocking noise from outside. It will help by a bit but it does a better job at absorbing sounds from within the room.

[@yuina88]

foam does work if you cover the whole wall with it and put 3-4 layers of it

[@ansarisahil3]

HI DUDE HOW ARE YOU ? MY APARTMENT UPPER FLOOR WOMEN ALWAYS 10 HOURS A DAY SHE ONLY BANG ON MY CEILING I AM SO FED UP AFTER COMPLAINING SINCE 2 YEARS SHE NEVER WANT TO CHANGE WHAT SHOULD I DO ON MY CEILING PLEASEEEEEEEEEEEEEE ADVICE ME SOMETHING TOTALLY WORTH IT PLEASE

[@vikingofengland]

Resilient channels might be worth looking into.

[@gurubhaikhalsa9337]

Will Rockwool Safe and Sound do a good job of sound proofing?

[@soundproofguide]

It certainly will do a better job than your standard pink insulation. Couple that with 2 layers of drywall and you should be happy with the results!

[@bridgetttrover9715]

Does mass loaded vinyl work for sound proofing or dampening?

[@soundproofguide]

Both. It does a great job in blocking sound and the rubber compound it's made from is a good sound absorber as well.

[@drea3071]

@@soundproofguide can I put it on my concrete ceiling?

[@matubalfaisal3106]

So what’s works??

[@Epistemophilos]

If sound is absorbed - converted to heat - such as in a panel, how can it not also reduce sound? That is, why is it 100% ineffective as soundproofing?

[@TFSU90]

What do you think about Durock cement board

[@TFSU90]

I know it can get expensive but it’s only for one room

[@LeeTavMusic]

Is tecsound worth the money then? Great vid dude 😎👍

[@soundproofguide]

I’d say so! Thanks 😊

[@LeeTavMusic]

@@soundproofguide yes it seems it man, little expensive but if installed correctly looks the product for my studio, all the best 👍

[@captainblando]

Spray foam isnt cellulose , its usually polyrethane . Your attic is usually cellulose

[@jdmorris9578]

You just saved me a whole lot of wasted effort and money. I wanted to keep outside noise out of my office. I guess noise-canceling headphones or white noise is the way to go.

[@soundproofguide]

Happy I could help! ☺️

[@zoohuman]

How about aluminum foil?

[@jejednb]

Good vidéo thx for this "no" tips XD

[@NS-dd9ou]

I believe referring to spray foam as Cellulose is a major mistake. Cellulose insulation can achieve great STC ratings and as the name says it's made of cellulose fibers that can be sprayed...but do not confuse with foam.

[@jimilove7773]

Thanks1

[@soundproofguide]

You’re welcome!

[@juanlongo4868]

About a second indoor single hung window