How to SOUNDPROOF your basement workshop! ep03

i've been waiting three weeks for these guys that probably wasn't necessary check it out sound isolation clip picked them up today and the timing couldn't be better i just finished framing today we're gonna start sound proofing that's what we're talking about in this video my name is blake pizzi thanks for joining this episode let's get started [Music] my first experience with soundproofing was eight years ago we were renovating our basements we think we did what a lot of other people do when bought safe and sound insulation put the insulation bats between the wooden joists put drywall directly below and let's just say it failed miserably we could hear almost everything our tennis were speaking about and a lot of other interesting sounds i'm gonna try and do it better this time i've been looking into it myself let me start by saying i'm not an acoustical engineer i did study mechanical engineering so if you want to dive into this further i recommend you go check out youtube there's a lot of great videos out there okay let me lay this out for you it's important to understand sound if we're trying to sound proof so the question is what is sound i'll pause it there guys is a little longer than i expected got about four and a half minutes of me just talking about sound so if you don't find this interesting you want to just jump ahead and write how i sound proof and go ahead but maybe you'll find this interesting so stick around if you'd like all right i'll hit play now sound it's vibration passing through air you can see here the air is compressed expanded compressed and expanded the vibration disturbs the air in the same direction the sound travels we can then plot these pressure differences and it will look like any other wave this sound wave has several characteristics and a couple are key when it comes to sound perfect first is the wavelength and this correlates to a frequency second is the amplitude which is really the air pressure that's caused by the vibration this difference in air pressure is important because it directly correlates to the sound volume which is what we care about to quantify this loudness we can put this air pressure on a scale the human ear can detect 0.0002 pascals up to 100 pascals as you can see this scale has very small increments hundred thousandths of a pascal and the range is very large the nice thing about this scale is that it's linear meaning that each increment is the same in value the issue with the scale is that one the range is too large and two it doesn't represent well what we can hear with our ears so we convert this to a different scale with numbers that are more manageable it's a logarithmic scale and called the decibel scale we start at 0 and go up to 130 decibels the range of the scale is manageable but the increments are not equivalent they are growing in size and this is where things can get a bit tricky we can plot the sound pressure versus decibels to make something very clear for this plot we'll keep both scales linear to emphasize the difference in each decibel it will look something like this an exponential plot why am i showing you this it's important because you want to understand the rapid increase in sound pressure with each decibel for example you might be comparing the sound ratings of two similar tools think of sound pressure as loudness pretend tool 1 is rated at 75 decibels and tool 2 85 decibels you might think that going from 75 to 85 decibels isn't a big deal only a 13 increase but actually you can see the plot is flat and then suddenly increases and in fact perceived loudness doubles with every 10 decibels now let me write that down for you every increase of six decibels doubles the sound pressure we actually don't care that much about sound pressure but what we do care about is perceived loudness and the key message here is that with every increase of 10 decibels the perceived loudness doubles now that we understand sound how do we measure effective sound proofing that's with something called stc sound transmission class this rating is very simple say we have a wall we measure the difference in decibels from one side of the wall to the other side of the wall that's it take two sound readings and the difference between the two equals your stc for example a wall with 90 decibels of noise on one side and only 60 decibels measured on the other side has an stc of 30. the nice thing about this rating system is that a lot of data has been compiled for almost every wall assembly that you can think of the wall assembly that i will be doing in my shop should provide a rating of 61 stc to give you an idea 25 stc regular talking can be heard that's poor quality 30 stc loud talking can still be heard 40 stc loud speech becomes a murmur 50 stc loud speech becomes faintly heard and 60 stc loud speech and household noise is not disturbing now the issue with the stc rating and all of this great data is that it's based on a range of noise frequencies between 125 hertz and 4 000 hertz that's not good because these frequencies are the upper and lower bounds of noise typically found within the home or in office space for example a table saw's sound frequency is approximately 85 hertz and that is lower than 125 hertz but back to our example if we have a table saw creating 90 decibels of noise at 85 hertz and a wall assembly of 30 stc we won't experience the full 30 decibel drop because 85 hertz is lower than 125 hertz lower frequencies have larger wavelengths and can penetrate through solid objects better than higher frequencies so our 60 decibels here actually becomes unknown regardless this information is still helpful to understand and the principles of sound proofing remain the same so that leads me to the four principles of sound proofing number one sound leakage number two decoupling number three adding mass and number four sound absorption plan for my shop is to have two layers of five-eighths drywall sound isolation clips two by six steel stud one layer of five-inch struggle on the outside and the clip actually receives this hat track and the drywall is then mounted to the hat track and last but not least fiberglass bat insulation inside the wall cavity so we have decoupling with the sound clips we are adding mass with two layers of drywall absorbing sound with wall insulation and that leaves us with sound leakage let's start with that right now okay sound leakage this is my wife's favorite principle just kidding she hates that word said i wasn't allowed to use it this is key the whole idea behind it is just you want your entire space airtight so i actually took care of this the other night i'm going to show you a few clips in a moment first a couple more comments for you door that's usually a big thing that has a lot of leakage i chose two exterior doors with a gasket around it they're not perfect you can get some mass to it like a solid core door or you can even add a sheet of mdf that's more on that other principle mass they do make acoustic doors with a nice seal kit those are about two thousand dollars though and just wasn't possible for me one of the things you want to keep in mind is your electrical keep the number of penetrations through your wall to a minimum if you're going to recess your boxes into the wall you need to use the putty for your electrical boxes try and seal that as best as you can i'll show you what i'm going to do in my electrical video but i'm basically going to surface mount my boxes to the wall okay so i'll show you how i took care of all the ventilation and the penetrations through the ceiling right now some of the larger stuff i'll just be using spray foam and smaller stuff i use just an acoustic sealant this is a green glue noise proofing sealant so this is a little bit larger yeah i'm just gonna fill that with spray foam let's uh move on to the next one i just take a sheet of plywood eight inches six inch ducks i'll get this up oh yeah hey check out that a little sketchy i always feel like i'm not the best at this such a mess okay while we're at sealing up all these penetrations i'll just show you a couple of the small modifications i made to the ducting heating supply drop right here i actually just rotated that 180 degrees and popped it out outside the door and then i had another one here put a layer of sheet metal over it and capped it so i took this one completely out a third over here and i actually just extended it the other side here so yeah none of the sheet metal in this space here nothing's connected to the shop now and then as far as this space goes that's an hrv i'm gonna be getting second one probably a smaller one and then that will just supply fresh air from outdoors and exhaust air i'll just tap into the line and put just an inline duct heater that will heat the space if it can't maintain temperature what's that that's the man that's the host that's the man that's the house nice job buddy oh nice shot parks okay so we ran into a bit of an issue here i think i got a way around it so i was reading a little bit more into the installation instructions for these sound clips turns out there's a fine line at the very bottom which says minimum thickness is 20 gauge steel stud and i've got 25 so that sucks but you know now i'm thinking maybe i should have just done wood at the same time all this steel stud by the builder is 25 gauge too so how much i could have done anyways got a solution here i set up my router table with a bit so i can just pass full length of a 2x4 through and then i just cut it on the miter saw into a bunch of little pieces you can see my little collection here and i'm using that as backing so i think that will do a little unfortunate because that's 250 sound clips and 250 little blocks that's okay that's what it is that's how it always goes get your laser level on the wall the right height so this is going to be spaced every two feet ranges from the bottom just from the top so it actually works out perfect i'm going to lay out my next row just 24 inches above and here's the fun process so i grab my blocking pop quick pre-drill there we go as you can see there decoupled so we're using these sound isolation clips to decouple so if you have your drywall fixed directly to your studs then on the other side the drywall will fix directly to your stud that's a solid direct path the sound's gonna love it what we're doing here is we're trying to break that path and we've got these small isolated areas prevents a lot of the transmission so there's a lot of other ways you can do it hands down the best way you can do it is a room within a room the other option is resilient channel i'm sure there's other options if you can think of any then definitely comment down below okay we'll carry on and hopefully get the rest of this done tonight what do you got on your tool pouch uh tools let's see them buddy can you show us what you got screen pen some tape screwdriver good you gonna help me for a little bit all the way down to the bottom one yep perfect okay come over here go bud oh that was a little scary wasn't it and go okay dude drill away good job got the block clip on perfect i think we ran out of blocks let's see what are we let's go 93 that's it put a little mark yes we did that one are we done all the walls now perks what's like kelowna the sun the lights is it warm hey parks uh can i get your sharpie there we go before drywall we are now done this guy next is the ceiling and all that other little stuff [Music] okay we got fife back here he's uh just moving the switch for the furnace from here over to here because it needs to be within reach of the utility room door anyways we're done framing out the bulkhead and see that here so you go to home depot tomorrow and grab sheet of osb to cut a few strips of wood so we can frame that out and then we'll just have hat track below going across anyways now i'm uh putting on these guys these are sound isolation clips but they're for backing minus to have a wood rack on this wall here uh my tool rack above the bench in the corner here and then cabinets over the sink and countertop and then over here will be a clamp rack way these guys work is pretty much the same as the sound clips but instead of i think like 30 pounds these ones are rated for 216 pounds each what you do is put on this c channel afterwards they snug pretty thick stuff it's 16 gauge this will be the backing got these two up and i gotta cut it to length now [Music] good morning we stayed up late about one o'clock last night trying to wrap up that list man everything takes just so much longer than expected still not doing drywall but that's the plan we're gonna start drywall today so i just went to home depot grab some plywood we needed drywall lift two other odds and ends for venting that sink five's back at home no he's not sleeping he's the man he is insulating can't say enough good things about that guy hopefully drywall goes quick to be much better than the last time i did it when i didn't have a lift anyways catch up with you in a few extended these air vents here so we're good for drywall there and we've got another uh right here so those are tied to the hrv flight's making good progress here how particular he's being and nice and neat not squishing anything cutting the insulation in half going over wires over pipe looks great the sound is starting to feel really dampened in here it's at this point where you start thinking uh installation does a lot definitely helps but just one part of it it's coming [Applause] along [Music] okay we're almost done installation already boarded up i just wanted to show you what i ended up doing here you can see i used some all-around strap right in the middle there looks a little sketchy but 16 gauge all around so pretty confident with it and look who we got lindsay she's here to help mr fife i think we're gonna put the camera away battery's almost dead and uh a lot of work to do for drywall tomorrow so this score game is over there we go three two they won yeah okay okay let's get going glenn sign us out a few weeks ago i had the drywall delivered i ended up ordering the 54 inch wide sheets so there was only one horizontal seam in the rec room having that basement door is really coming in handy and i'm sure glad i paid for the delivery at 5 8 of an inch thick and 12 feet long they weren't light welcome to my shop we're completely finished we put up all the backing as you can see get started with drywall now got uh dab behind the camera and fife over here sliding away still so let's get going first sheet [Music] [Music] we're making progress just about the first layer down here i just wanted to show you these guns we're not drywallers but these guns make us feel pro these guys are made specifically for drywalling would never do it again without one of these so just pull the trigger and lock it it's basically on ready to go as soon as you put pressure on the screw it just kicks in releases a little clutch and drives in see how fast it is perfect depth making it a dream vice corded though so he's got his [Music] chain but it's going pretty quick the interior walls are getting double layer drywall so coming back to that sound linkage we need to take care of all these cracks if this was your final layer of drywall just mud and tape would do because it's not we don't want to just put board on top of this we want to deal with the sound leakage and then i'm just going to take this uh acoustic sealant and i'll be putting a bead along the bottom and then also anywhere you have a transition between drywall oh that looks nice going all out no shortcuts here [Music] three o'clock it's three o'clock or is it like six o'clock [Music] foreign [Music] it's been about a week this is the last sheet of drywall in the whole basement pretty excited to complete the drywall [Music] i got a taper lined up for tomorrow got about 35 years experience feel confident passing it to him plus i can edit this video [Music] we are done drywall the last board it's time well for quick cheers the diet coke as always and actually check this out here it was like sunny and warm out this morning like 15 degrees or something now it's snowing this is classic edmonton weather for you it's okay drywall is done you can take a quick peek this is the rec room with the kids this wall is gonna be lined with plywood gotta take care of the shoddy work from the builder used real thin gauge two and a half inch wide steel stud not gonna hold up for uh a climbing wall all right so i'm gonna beef that up line that with plywood sometime this week i'm going to spray the ceiling white here leave it exposed that way i got freedom for all sorts of fun games with the kids maybe we do like a swing monkey bars through here i think it should look okay for what we're trying to do we're gonna get this guy mutton tape too then we got the shop so we got two layers on all interior walls and just one layer of 5 8 on the exterior two layers on the ceiling and the bulkhead i think it all worked out pretty good so i made a couple quick comments regards to drywall like i said i don't have much experience with it but a couple key things right here would never do it without one of these guns so fast this guy was helpful for a couple things if you have an oscillating tool definitely not a necessity but this guy love it never do without one of these makes it so easy for just popping out your receptacles nice and quick obviously knife cutter yeah so you saw me take care of number one all the sound leakage i was taking care of everything before i boarded up the walls all these walls you saw me anything that's got two layers below it i've used acoustic seal to take care of all the seams and then a critical part is the mudding and taping you don't want to just build your shop board it up with drywall and leave all these gaps and you're asking yourself why is it not sound perfect well sound does leak just like water principle number two decoupling let's go and take a peek at the wall profile here so we are nine and a half inches which is nuts so i got two layers of 5 8 and we've got our hat track and then you can see the sound clip which is decoupled from the steel stud that is i don't know maybe mom nursing the baby i'm not sure then we got the absorption all these walls the ceiling have lots of insulation in them that will make a big difference and then last but not least is the mass all that drywall two layers of 5 8 makes that wall really heavy and difficult to vibrate that's it for this video thanks for joining me hopefully you learned something about soundproofing i sure did i hope it works out comment down below if you think there's something i missed something i should add these are my thoughts and what i learned through youtube and google and a bit of school i'm one step closer to having the shop built out okay catch you in the next video thanks for joining me [Music] you

Channel: Blake Pizzey

Views: 2,309

Rating: 5 out of 5

Keywords: soundproof, soundproofing, basement workshop, workshop, shop build, shop, rsic-1, sound clips, decoupling, mass, absorption, leakage, sound leakage, resilient channel, hat track, acoustic seal, woodworking, basement, steel stud, room within a room, double layer drywall, 5/8, drywall, Green Glue, Noiseproofing Sealant, Mud and tape, dampening, insulation, sound isolation, safe and sound, safe n sound, fiberglass insulation, What is sound, how to soundproof, STC, Sound Transmission Class

Id: pPyeS_GhhnY

Length: 23min 16sec (1396 seconds)

Published: Sat Apr 17 2021

Reddit Comments

[u/volve]

That was a lot of considerations. Looked solid. I need to see the result with measurements!

[u/xXLtDangleXx]

I cannot wait to see how this turns out.

[u/bearcreekwoodworking]

Awesome!