3 Places You'll Want to Insulate + Rockwool Advantages/Overview

[@tonymeggait704]

Another benefit to rockwool is its end of life use. I operate a gravel pit and often take soil from building sites for pit remediation. Not long ago i received a number of loads from a recent home demolition. The crew had done a good job of separating concrete , siding and all other debris from the soil however the material was scattered with pieces of foam. Touch foam insulation with an excavator and you instantly have hundreds of bits of foam board which can not be separated from the soil and that foam is there as a pollutant for hundreds of years. Rockwool on the other hand can be used as a soil amendment I understand that it can even be used in organic potting soil. I used spray in open cell foam in my latest renovation but from now on will stay away from plastic foam products or at least do more research on the products I do use

[@solarcarrot]

As an amateur with woodworker, i typically feel overpowered with the entire arrangement kzbin.infoUgkxrYREG3-7f1Aqk9ams3ZESRNzGnfdUtyQ . Be that as it may, this arrangements drove me through with much clarity and effortlessness woodplans. Works i now work like a genius. That is great!

[@user-vp1sc7tt4m]

Rockwool is the best. I used it for fire break and sound proofing between walls and ceiling during our rental suite reno and in the exterior walls. Sound was no longer an issue in the house! (We did use double layer and rez bar). Heating cost in the rental dropped 50%. We had a water pipe burst a year after the reno and when we opened the wall, the insulation had drained completely and was dry using a meter the next day. Studs retained moisture much longer so we used a dehumidifier for that. The insulation is so easy to install because it maintains it's shape and doesn't flop around. Great stuff!

[@brandoncoyle7110]

I love this stuff. I remember doing my theater seven years ago and it was a pain in the butt to find Rockwool. Now you can buy it at every Lowe's around me. So glad they have come up this far.

[@shahsmerdis]

just redid a kitchen, we layed metal studs with 5/8 sheetrock and rockwool . it was sufficiently strapped to handle the weight on the ceiling My late father put rockwool and 5/8 sheet rock throughout the house before the days of youtube :) , so I had to follow through in this remodel. So happy to discover how much he thought of after the fact :) :)

[@TheCookster64]

I love rockwool and it's all I use. Fire resistance, sound proofing, I also love how the fibers will fall to the ground instead of float in the air.

[@ellenhal1537]

I bought this as a gift for my friend kzbin.infoUgkxcZqgZ8Ynkiz5n_LxIWRlAicuzmz5kCHG who is just starting out in the world of wood work. He loves it!! There is a great section on different wood and what to use for what kind of job and a similar section for tools as well. The projects in it are things you probably would have a go at with clear instructions, pictures, videos and diagrams throughout. Great for a beginner/amateur wood worker.

[@elcam84]

I really like using Rockwool. For those that haven't it is exactly like Matt says he isn't embellishing it's qualities. My only complaint is that it is super itchy and make sure to wear a good mask during install as you will inhale the small fibers and you will be coughing it up for a while afterwards. I have it in the wall between the living room and master bath and I can turn the surround sound way up and you can barely hear it. My only complaint is that some of the products are kind of a pain to get in small quantities. It is far superior to the old mineral wool that was popular back in the 50s to 60s. That stuff was very poorly manufactured by a company here in Texas. The batts were undersized and lots of granular slag left overs in the batts and in the loose attic insulation.

[@jmcdonne]

Not that there's ever a good time, but now is an especially bad time to voluntarily compromise your lung function.

[@elcam84]

@@jmcdonne Very true. Don't need any more handicaps at the moment with the crud going around the world faster than a concorde.

[@bmel7718]

Being from the commercial side I've used this product many many times over the past 25 years. It's the best stuff out there. As an apprentice, the old timers taught me to use baby powder before using rockwool/insulation on any exposed skin. We will cover our arms neck chest and face. Then when you get home you shower with cold water first to keep your pores closed for a good rinse. The back of my neck was always that one spot if i forgot i would definitely regret. WEAR YOUR MASKS and SAFETY GLASSES PLEASE! Being over 50 I can say I wish I wore a mask more as a young man. Thank goodness I am a Supervisor now and those days are behind me.

[@parazitu069]

Deseret animate

[@parazitu069]

Robert Adams Deseret animate in romana

[@sparkyobrian6417]

my old house was fully insulated- interior walls too- with rockwool,best stuff ever. bed rooms and liv room were fantastic for keeping noise down from kids and tv, along with solid core doors

[@FJB2020]

Did you know that the Pink stuff and Rockwool provide the same STC reduction...

[@leeknivek]

​@FJB2020 no rockwool is noticeably more dampening

[@hcg9256]

Thanks Matt , I really appreciate people like you who with their videos help me every day to be a better contractor.

[@mtl-ss1538]

- Insulated Weather Boards in New Zealandkzbin.info/www/bejne/eJ7Gl3-bp5mHfpo Timber Lockwood House of the Year 2020.!!! kzbin.info/www/bejne/Z5WYXo2ll9dsgsk lockwood.co.nz/#intro . lockwoodreadybuilt.co.nz/#readybuilt . kzbin.info/www/bejne/Z5WYXo2ll9dsgsk ..!!!

[@MrMander87]

Rockwool has been my go-to for insulation for years now. Great to work with, cuts easily ( I typically just use dollar-store steak knives!), easy to install. As some of the other comments said, I also use this for interior walls when I can, especially around bathrooms - really cuts down on noise.

[@arkrainflood]

kzbin.info/www/bejne/nXXWZ5t6aad1d8U ;-)

[@MISSY4EVR]

I use a saw lol

[@JoeBieniecki]

being extra lazy , a dollar store electric carving knife makes cutting perfect edges and shapes

[@InspectorJeremy]

I'm sure you've pre-recorded videos. I love that you're not hiding under a rock and still getting out awesome content. Thanks Matt!

[@buildshow]

Actually I shot this one last week! However, I don't have a video for Friday 🤫Have a few ideas of what to shoot while my jobs are shut down. Never fear, I haven't missed a Tuesday or Friday upload in over 3 years!

[@boa9535]

Matt Risinger: I’m so grateful.

[@slicktype001]

The technician of the building trade 🔥. Bro, I love your content. Thx for sharing that brain of yours.

[@buildshow]

Best comment I've seen in awhile! Thanks my friend.

[@IppiopaidFEEDBACK]

It’s great stuff to use! I always use a 12 inch drywall knife to help me install it, you can just slip it between the stud and the insulation, and you don’t have to worry about the friction that will punch it up.

[@buildshow]

Great tip!

[@kingbee4474]

​@@buildshowcan rigid rockwool version be installed behind a metal fireplace insert?

[@scottsmith4145]

I use Safe n Sound in the wall between laundry/mech room and the media room. The safe n sound absorbs a wide range of the frequency band. My walls are double 3/4 inch sheet rock on each side with gleen glue between. I can have a full load of laundry going,, water heater running, and furnace blowing and its still quiet in the room.

[@benjaminrhodes9611]

Good stuff Matt! I don't even mind that it's a commercial for Rockwool. I'm using their stuff in my house.

[@TampaMaximumMike]

Is it itchy like fiberglass?

[@krehbein]

What’s the up charge over traditional insulation?

[@krehbein]

TampaMaximumMike not at all!

[@benjaminrhodes9611]

@@TampaMaximumMike Nope!

[@boa9535]

TampaMaximumMike: One other viewer said it was itchy and recommended wearing a face mask, gloves and long sleeves as it can get into your lungs.

[@morrishowell7410]

Matt is correct in his assessment of this product. It is the only type of interior insulation that should be allowed in U.S. home construction as far as filling the cavities with other than foam. Foam is risky if not installed properly, and it is not a DIY product in my opinion. I have installed a lot of fiberglass insulation in projects over the years, none even come close to this product. It completely fills the void, cutting is easy and precise around outlets. If you want to build a structure that requires less energy to heat and cool this product is the essential product to get you there. It is not cheap, but there is no doubt this product is going to pay you back in energy savings and the increased noise reduction is just an added bonus, as is the increased fire protection and the fact it will not absorb water. This product is hard to find, must be ordered in special order, but is worth the extra effort. Thank you Matt for bringing this product to the attention of so many people.

[@patsykravitz2676]

When I purchased my home here in NC I was told that there was plywood under the aluminum siding. Well, it turns out that I only have very thin sheathing board and the aluminum siding. (Fun.) And a home that was supposed to be constructed with 2 by 4 with 16 on center construction seems to vary in width between studs. (More fun) I appreciate the info as I seemingly will need to "rebuild my home in place. I recently used Rockwool to insulate between a bathroom that has a laundry space included.. I'd love to make my way around the house with the product. Thank you again for your videos!

[@andreareo5456]

I'm in NC too and all too familiar with the building practices here. Lol I am going to insulate my basement ceiling joists for the floors above. Trying to figure out of I need to cover it..

[@robertbragg2380]

Every time I watch one of your videos I want to build something.

[@AmericanConcrete]

I'm a remodeler in Hampton Roads area of VA. Seeing many houses from the 40-60's I can say that over time the one of the issues I see as a remodeler on these older homes is the shrinkage and failure these many other types of insulation. If Rockwool won't shrink over time then I'm SOLD because it won't FAIL!

[@Dhleeiv]

Then you won’t have a job....

[@AmericanConcrete]

​@@Dhleeiv Your comment shows you not only don't renovate houses, but you don't know much about reality either. Have a great day!

[@Dhleeiv]

AmericanConcrete You’re wrong buddy. Do a remodel right now actually.

[@angellas.1314]

@@Dhleeiv Other things also break down over time. The population is still growing and need homes.

[@paintball130]

I'm a commercial plumber, we use this stuff all the time to stuff holes for fire/sound proofing. It's a great product

[@angellas.1314]

Could you maybe tell me why my small bathroom in a house built in 1964 is always a walk-in freezer in the winter? I added new Marvin widows 2 years ago, but it’s still freezing in there! How can I make it more comfortable in there?

[@davidamcardle]

Matt, can you detail how you are doing your windows, roof, and your old brick walls with the exterior insulation? How do you add insulation to the brick and still have an air gap? How are you framing your windows for it? Stuff like that.

[@rds990]

Used this stuff in my basement finish. Wow.....sper easy to use, fast to put up, and does a great job. PLUS you get the added protection of fire break protection if they fully fill the wall cavity. Very nice product.

[@Moonkey-d4b]

Did you put it right up against the concrete?

[@paddymarcotte674]

Love Rockwool. But I found it's WAY easier and quicker to cut it with an electric turkey carver than hand cutting it.

[@1806StoneHouse]

Paddy Marcotte does your wife know you did that?? 😂😂 very creative!! Love it

[@phillipmaddox9058]

I prefer the electric ostrich cutter, but to each his own.

[@alukardFE]

Haha good idea

[@AaronPlay]

Lol, I was about to type the same thing. I had to use it on a ceiling where the joists were all framed 12” on center. That electric carver was clutch.

[@WonderWoman0313]

Thank you!! Noted! 😊

[@comingtofull-ageinchrist6736]

I actually learned of you On RR Buildings with Kyle. You really do have a lot of informative content on your videos. Thanks for sharing your knowledge!

[@davidnielsen4490]

Matt, after the first video I saw on Rockwool, I changed to Rockwool for the insulation on the addition I am building. Love the product. It's hard to find in Northern Wisconsin, but I finally found a wholesaler who had enough in stock. Now I have to decide if I want to put comfort board on the exterior. Thank you mat for educating us. You're doing a great job. "Walk with the KING and be a blessing.!"

[@512bb]

God Bless David!

[@davidnielsen4490]

Thank you Scott. The LORD has blessed me greatly in so many ways. I can't wait to see how HE works in this crisis. May you see HIS hand upon your life in new and exciting ways.

[@512bb]

@@davidnielsen4490 All the best to you & your family, God bless us all my friend

[@kristofferholst6053]

Can’t think of anything more itchy than this stuff, though I am proud, since this is the first Danish🇩🇰 product I’ve seen on an American build show .

[@garnetfunk1562]

Hey Matt keep up the good work I am a big fan of your shows and use your commentaries with my clients to explain the pros and cons of all types of building materials and building processes . I enjoy your humble approach to failure anyone that builds at times will run into a oversight in applications . With a good attitude failure can create a determined state of mind to get it right . We are all desperately want to avoid catastrophic failure whether financial or structural life threatening disasters . Your program is part of my Continuing Education after 38 years building new and renovating old houses . Cheers

[@Antonioremodel]

Matt couldn’t of explained it any better

[@valeriej291]

We finished 1100sq ft of our basement and used safe n sound in all the ceilings and interior walls around the bedrooms. We had the exterior walls sprayfoamed. The safe n sound has really helped keep noise transfer down.

[@jodybanks5344]

Rockwool hilarious when I saw it in title . I had to comment on this . I used to grow the best weed using rock wool ten years ago hydroponically. The best weed is always hydro grown out of rock wool , compared to today’s crap soil grown. And bugs will crawl in it through it if it stays wet . And it stays wet if water gets on it and soaks into it and water source isn’t fixed. But insulation value is one of the highest value like he says

[@Shazam999]

This is just totally wrong. Rockwool is extremely hydrophobic. The stuff you used wasn't this stuff, it is a kind of slag wool material purposely designed for growing plants in.

[@jrc6158]

You are correct Jody! I purchased a bunch of R23 Rockwool for a storage building from Lowe's. They delivered it on a rainy day and when they dropped it off at my house I noticed a few bundles had gotten soaked. I was curious so I busted open one of the wet bundles. I left it inside a dry warehouse in the middle of the summer for 3 weeks and was shocked when I could squeeze it and water still poured out. I called Lowe's and told them about it and they said to bring one of the wet ones back so they could look at it. They refunded me my entire order and told me to throw away the rest. I put in my garden and had one hell of a pumpkin patch. I found out Rockwool Comfort Batts are definitely not Hydrophobic 😂.

[@PrestonJG]

Hi Matt, it would be very helpful if you could make a video for the young tradesman or the people on the edge of pursuing a trade. I have been working construction for 3 years and am a Junior in college. I’m not sure which direction to pursue. God Bless!

[@kkaalaas]

as a homeowner i love your videos dont listen to the crazies!

[@funnlivinit]

Matt, I'm glad to hear that you are working with some builders from California. The desert southwest is a totally different animal, as far as insulation strategies go, than the North, South or East. I live in northern Nevada and we have cold, dry winters and hot, dry summers. Please give some insulation strategies that will work better in these type of climates. We feel left out!

[@ladym6738]

Watched the Canadian shows and learned a lot. This made a bit more in context. Thanks.

[@mattstephenson4345]

Used rock wool to insulate walls and ceiling in my basement around a theater, bedroom and bathroom. It was easy to install using an electric knife like you’d use to carve a turkey. Very happy with the product.

[@Moonkey-d4b]

I’m looking to use this in my basement. Did you just use it between the studs? I have a one inch gap between my studs and concrete and wondering if I should leave an air gap or put something against the concrete as well

[@mattstephenson4345]

@@Moonkey-d4b I used it between studs, not in the gap between the foundation wall and the studs. I think it would hard to get in there and unnecessary.

[@Moonkey-d4b]

@Matt Stephenson thanks for the fast reply. Just trying to figure out how im going to do it. So you have an air space and nothing against the concrete?

[@mattstephenson4345]

@@Moonkey-d4b yes, not sure that’s wrong or right, but that’s how I did mine. Do suppose that’s problematic?

[@Moonkey-d4b]

@Matt Stephenson after tons of research it’s been a mix of opinions. Some say to leave an air gap so things can dry out if they ever get wet. Other days use rigid or spray foam against concrete and bats between studs. The research has only stressed me out

[@WindfreakVideos]

i just checked Rockwool homepage and it was surprising to see Matt on the front page as the face of Rockwool :)

[@WonderWoman0313]

Mr. Matt, I always enjoy your vids & learn something new & exciting every time. My Builder/Structural Engineer Husband who usually handled more of the technical/materials/math/best practices, was killed before we had a chance to finish our basement on our new construction home. *guess I did more manual labor & coordinating _with_ him. It’s all roughed-in, but it seems there’s still so much to do. We physically built our houses together so I should’ve paid closer attention. 😞 Now I’m not sure what to do w/o him and I don’t have much luck with subs showing up, not being kinda creepy &/or listening to me (unlike HE did). Now I’m _trying_ to finish it _(or parts of it I can afford)_ myself as much I can _(no choice I guess)_ . So I’m gonna try to do it myself, even if die trying. 🙏 Prayers appreciated.🙏 He had already started to install safe n’ sound Rockwell insulation in the basement ceiling under the the main floor so I’ll order more & finish that part. Looks like we still needed to insulate the basement rim joist too.🤦‍♀️ Lots of how to vids on rim joists tho. *QUESTION:* Can Rockwell safe ‘n sound be installed ON our daylight basement POURED CONCRETE VERTICAL WALLS _(with or w/o some kind of vapor barrier???)_ OR should I just stick to using foam boards for that (& what kind of foam boards, glue tape, etc....that’s NOT the MOST expensive) on the vertical concrete walls??? Spray foam is out b/c $$$$$$. 😞🤦‍♀️ Any advice you could give would be greatly appreciated. Thank you in advance & keep up the excellent work in the construction industry. P.S. - You don’t happen to fly out to other SE states to ‘consult’ do you?🙏

[@zanahoy]

#9 thing I like about it, they sponsor us.

[@noconspiracytheoriesplease.745]

Why is this wrong? The sponsorship is transparent. Are you envious of what Matt does? Do you appreciate the time and investment to produce quality videos? Go create your own content or click on the next video rather than leaving snarky remarks for strangers.

[@CaptainsOrders]

I just built a wall in a financial office to divide the room, used 5/8 WB, Acoustical Sealant, Rockwool Safe & Sound, and an exterior door, the 2 rooms are dead quiet, they can talk on the phones and not hear each other, and the client is very happy. Great product knowledge I learned from Matt, thanks buddy keep up the great work!

[@joethebuilder2480]

CaptainsOrders What is 5/8wb

[@greenmount73]

Joe the Builder 5/8” Wall Board

[@jeanlanz2344]

Really good summary of the benefits of Rockwool. Thank you.

[@MrTooTechnical]

those danish are smart for inventing rockwool. woohoo. thanks matt

[@cjhification]

Hydrophobic is better described as water hating rather than scared of. Enjoyed the content, thanks for keeping it coming.

[@sergiobustamante8587]

Thanks Matt for introducing me to the product. I like the sustainability part of it a lot! Question on how it works from a water vapor perspective. You did not mention if it needs a moisture barrier like regular insulation does and does not appear to even be an option to order it with a moisture barrier. I am looking for something to insulate my lath and plaster walls on my 100 yr old SoCal house. This seems like a good candidate.

[@doomaster4]

Sergio Bustamante doesn’t come with vapor barrier

[@tommybaker4330]

Above, below and all around. There, I saved you 9 minutes and 40 seconds!!!

[@jimcahill6330]

Check out Matt with the multiple cameras going. Video quality has come a long way since I first subbed. I recently used Rockwool to reduce sound transmission in a common wall. Easy to work with and made a noticeable difference.

[@diegohorton869]

I’m installing it right now

[@KrushKrills]

im using rockwool r15 & r30 right now in a remodel of my 2nd floor, great stuff

[@alcolavista-22]

I just read the manufacturer’s spec about this insulation 🧐🤨🤪😉 funny that i did understand more from this guy.. 😎😂😍🇨🇦 thanxs man✌️

[@ClayAutery]

Glad I found your channel..... My banker and spouse are not.... I've launched into a room-by-room renovation of the entire house.

[@johnward5890]

I us it around wood stove installs because it has the 2100 F degree temperature rating, it is a good shield for plumbers to use while soldiering pipes around wood studs because it a great heat barrier. Save leaving burn marks on Studding in new homes, leaves a professional look.

[@AdrianMcDaid]

How to build your new house for cheap. Get every one to sponsor every thing going into it.

[@NelsonParz]

And wait until you get a sponsor for EVERYTHING before you hang drywall

[@danielroy8411]

😂😂 You're not wrong

[@kennethcarlsen8219]

Jealousy…

[@Antonioremodel]

I know you’re not hating bro? would you pay all of it or just some parts because your sponsored

[@itsyaboyarchie1182]

This is honestly a really great video..good job

[@givemeaforkingname]

hehehe... "Vancouver... a very cold climate." Every Canadian not from British California is still getting up from ROFL.

[@zstarwarsz]

Vancouver being cold to Canadians as Miami being cold to Americans

[@Crusader1815]

@@zstarwarsz Vancouver is cold to Texans like Matt.

[@MidlandTexan]

Aye.

[@helicobacter3226]

British California lol

[@roxyraccoon8856]

Helicobacter, Agreed. "Columbia", I dont recall auto-correct ever correcting it to California.

[@frankbiz]

Great product, great informative presentation. Thanks Matt! 👍🏻

[@Thoracius]

Watched an insulation materials comparison video where rockwool absorbed a ton of both water and vapor. That had me a little nervous about using it.

[@sauce_aux]

Rockwool for acoustic projects, all day!!!

[@simonloveless8924]

wonderful show this really is Matt.

[@backachershomestead]

Good timing I'm just getting ready to insulate my new home 1200 sf.ranch with 2x6 walls in southern middle Tennessee.

[@ArneJohanssonMpls]

Love that stuff. Put it in my duplex.

[@microwavedsoda]

my first demo job was removing rockwool blown in type. Crappy gig but learned a lot

[@oldskooldriver9379]

I put 2 layers of 3.5" Rockwool R-15 batts in specific attic ceiling areas to replace 12" of blown in fiberglass after some renovations. Summer hit and now midday sun the ceiling with 2x3.5" Rockwool batt area of ceiling is 73F, blown-in fiberglass areas are warmer to touch and measure 75-76F, while the AC thermostat is 72F. That's poor results for all that blown in fiberglass. Looking forward to using more of this product as I reno more.

[@chrisforker7487]

I did my shop with this stuff and it’s fantastic!

[@512bb]

Hi Matt, Why are you using the Atlas high density foam panels on your house as opposed to the Rockwool for the exterior insulation?

[@UnturnedTome]

Because rockwool is sponsoring this video

[@tombogaert1015]

Because Atlas Sponsored that video.

[@brettknoss486]

It would be neat if there could be product made with a high enough density to be used as an OSB alternative, or a Rockwool backed steel siding/roofing product designed to be used under hardie board siding/slate.

[@Thoracius]

It exists. My neighbor used this for his roof. Super fast to install, saves a ton of labor. It's called a "rock wool sandwich panel."

[@angellas.1314]

@@Thoracius Could you give more details on this for a novice?

[@Thoracius]

@@angellas.1314 I guess you just need to call around your area and see if anybody manufacturers this near you. It's just Rockwool with sheet metal glued to the surfaces.

[@nwphillips2003]

Hey,Matt. You should do a show specific to Gulf Coast elevated building. Lots of water and possible wind events, but we really want to keep heat out. Would love your review of hurricane sustainable builds.

[@MikeGerz]

I needed to add a bedroom and decided to subdivide the "man cave". Because of all the potential noise in the common area, I decided to insulate the bedroom walls with Rockwool. It has done a fantastic job reducing the sound transmission. It was intended to be a temporary room, but it turned out so well I'm planning to make it permanent. It was my first time installing Rockwool and it was a bit more fragile than I expected. They do well most of the time, but if you're too rough with the batts they will break apart. It is convenient though for filling in small, odd shaped spaces and working around wiring. It was also dustier than I expected and a little itchy. I agree a mask, gloves, and long sleeves are a good safety tip. I am looking at building an age-in-place home (at least 40 years) and I'm definitely considering it for that project. Up here in the northland I'm looking for energy efficiency and low maintenance. One thing Matt didn't mention is its mold resistance, mostly because it doesn't absorb water.

[@briancanning8194]

Hi Matt was wondering if you were aware of the wall building system called OSBlock. It's a new product from Quebec, Canada. This product is right up your alley. Hope you get to see my Post.

[@Claudio-et2tw]

He is right about the thermal bridge. And the only way to avoid it, is by insulating trough the exterior. That is what the builders are doing in Portugal. And if we insulate inside we increase considerable the thermal insulation.

[@Auntypatti]

We want to replace our wood exterior with fiber cement siding. From what I can gather from your videos it would be the zip system with an overlay of rock wool. Then slats down the studs to connect the siding. Am I missing anything?

[@sunalwaysshinesonTVs]

The face of Rockwool!

[@normrubio]

Hey Matt, can you do a deep south texas build guide? I'm in Laredo and getting ready to start the build plan; Laredo doesn't have the best rep for build quality.

[@garbo8962]

Large Hospital/ research center that I retired from only used Rock wool aka cotton candy aka itchy wool. Was fun fishing say a MC cable from a high ceiling to a receptacle. Great for reducing sound transmission. They also only used 5/8" purple moisture resistant sheetrock.

[@lynnbennett8739]

Great video, just a note Vancouver Canada is not as cold as Chicago. It's probable the warmest city in the winter in Canada compared to say Edmonton Alberta.

[@doomaster4]

We used about 7 pallets of the different forms. They are all basically the same item safe n sound is a little denser, the r30 is 2 r15 molded together. Makes you itch for about a week no smell, particles should be swept up after all insulation is done if it gets embedded into drywall then painted over you will be left with a rust spot in a few months. Reduces ,ore of the higher pitch sounds mid to lower bass sounds can still come thru by stud transfer

[@robbarnes9692]

6:18 "... you need to insulate, especially those 'I' joists, with something that's going to keep fire resistance down." REALLY?!?! Why do I want to keep fire resistance down?

[@T12i99iN]

Can't wait to see some California builders in your content.

[@bigbeef8935]

Yeah because California is where the intelligence is at an all time high. “Hi I paid 2.2 million for a house that’s the size of my garage “

[@RobertBierma]

would love t see you do a video on two less common insulation types here in north america. Those would be rigid wood fiber insulation (like Gutex) and wool insulation. Both have very good characteristics/qualities and from my perspective cost and availability are their main drawbacks. There is however a company in Maine working to open a rigid wood fiber insulation plant and there is a company in Oregon using processing domestic wool for insulation.

[@YIQUANONE]

You should do a cost breakdown on energy savings vs extra money spent on exterior insulation. I would be curious how many decades it will take to get a return on the investment or maybe the value of the house goes up and you get your money back when you sell.

[@nicholassartell7421]

I'm remodeling a 1904 brick school house in Minnesota, and was wondering if using rockwool against the brick is good or do I need to use a rain screen? This is a full gut job

[@Jeff1960G]

Great video. I live in the northern midwest and want to insulate my detached 2 1/2 car garage so I can try and do work in it during the winter months. I know when it gets below freezing it will still be a challenge to work in without a heater, but how can I keep it "warmer" than the outside? What product is best (and R value)? I don't have drywall, just studs for now. It does have an unfinished peak meaning no false ceiling and an attic. Also, is there something I can do to the concrete slap to improve warmth? Thank you.

[@JerodMatlock]

Thanks. It would have been nice to know roughly where the product stands cost wise relative to other insulation types.

[@1806StoneHouse]

Jerod Matlock it’s kinda expensive.. John’s Mansfield makes a rockwool type insulation and it’s a little less expensive 👍

[@eh_bailey]

When I priced it with bulk discounts included, mine came to about 1.5x fiberglass. However, fiberglass is very difficult to install to get the rated values. Considering all of the other pros, I thought it was worth over 2x. So, it made sense for me. Given the option I will probably never use fiberglass again.

[@JerodMatlock]

@@eh_bailey that is really good feedback - thanks

[@hhiippiittyy]

Everything that Matt does a commercial (video) for is more expensive. Everything.

[@coachiti2009]

@@hhiippiittyy true, but what I do like is that he gives you options and pros/cons. I offer this product to clients as it's the closest to spray foam benefits. This product may be a little more expensive, but worth every penny!

[@dbw9004]

Great Channel Thank You and I'd like your opinion: 1962 Phoenix AZ home 4x8x16 with the famous interior 1/2 inch furred out silver shield lined drywall as my only insulation. I'm going to stucco the exterior and would like to insulate. Rockwool? Foam Panels? Other options? Your opinion?

[@gerardcooney791]

How safe is this product to handle? What chemicals is it treated with, are the fibres dangerous to health if inhaled etc... There was a time Asbestos was lauded as the wonder material and look at that now.

[@doomaster4]

Gerard Cooney fibers are heavier than fiberglass so it doesn’t stay in the air as long. It’s made of rock, slag, and a oil coating for water.

[@gerardcooney791]

Jason T thanks for the info. I’m not against Rockwool per se, rather let’s just say the jury is still out for me when it comes to inorganic fibres and their risk of inhalation. I’m more inclined towards organic products like cellulose, wool etc...

[@KevboBaggins]

Can't wait for the WUI vids!

[@heidefeldman1760]

I have a 1960 home. There was a drop ceiling I took down. If I place the 16 on center with Rockwood will I need to put plastic stapled to ceiling joists before placing my tongue n groove ceiling? Home is in The Appalachia mountains, NC.

[@PhillipGoericke]

Hi Matt, I really enjoy your show. I'd love you to cover aerogel insulation (pros/cons, cost, etc) and even compare it to other great insulation products like rock wool or air krete for example. I'm trying to learn more about the best insulation choice for R value, fire and water resistance and sound proofing and there's not a lot of information about aerogel yet.

[@flyinima]

Because it's expensive as fuck

[@GOLDVIOLINbowofdeath]

@@flyinima Who asked you?

[@tatts4life838]

I wish I had known about rock wool several years ago. My parents had an addition done and they wanted insulation put in between the first and second floor for sound dampening. Unfortunately the contractor used normal insulation so it did nothing for sound.

[@scorpio6587]

Plus INSECT RESISTANCE. Rockwool is da bomb.

[@buildshow]

That's a big deal. I've seen the data, but it's not yet published. Very impressive bug resistance. Totally safe to use below grade and not worry about termites.

[@alwaysrockn2009]

Excellent video!

[@jasonmiller4221]

Odd question. Since comfort board is vapor open, what would happen if someone used it to insulate the interior of an old historic brick house? Obviously worried about the walls being able to dry out, hence the question.

[@mttrips4429]

I’d like to see you dump water on the top edge of the rockwool. Rockwool is used as a growing medium and it holds water a LONG TIME. . It won’t absorb dumping water down the side like that but if you dump it on the top edge it will absorb after a little bit.

[@davidrobins4025]

This is very helpful information. Thank you for making this video.

[@michelfortier9563]

It's a shame they don't have some type of blown-in product for attics. I understand you would lose the "compactness" of the product but I would think they could engineer the product so it's in real small "chunks" that would settle close together. I want to remove my blown in white insulation in my attic and would really like a better, more dense product. Any ideas?

[@garyewing5450]

Matt. You have a great show.

[@DK-pr9ny]

How do mice feel about Rockwool?

[@josegazca6227]

hi matt i was wondering if I can use the rockwool comfortboard on the outside of a all block house walls?? I am currently biulding this house, I am looking for the best way to keep the south tx heat out

[@petrirantavalli859]

important thing to notice that Rockwool is water resistant and permiable not water proof and that rated 1liters per sq. meter still has to be accounted for even if the material doesn't soak it for the long term, remember that ventilation with these. Biggest difference to XPS foam board is that XPS is virtually water and vapour proof when you glue seams with non expanding urethane imo. best practice for cold climate is to put XPS in the inside for heat and vapour barrier and rockwool on the outside since Rockwool can also be plastered over with a mortar cement.

[@Shadow-ol2ik]

Can you do some applications/builds for the upper midwest?

[@anthonynyman167]

Comfortboard being made from recycled material was mentioned. Does Rockwool have a recycling option or program for recycling used batts? I spent 9 years in agriculture builds. A lot of Rockwool batts went to landfill during expansion projects. Very little was reusable into the new build.