How to Choose the Best Insulation for Your Home | DIY Home Renovation

Are you starting a DIY insulation project and not sure which type to choose? In this video I'll go over the difference between pink (fiberglass) and Roxul insulation, and discuss the which you should use depending on the project! Let's go!
Got a comment or question? Leave it below and I'll get back to you!
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There are a lot of factors that go into choosing which insulation you're going to use, and I'm going to share them with you today. Keep watching to see how each insulation cuts, reacts to fire, and what happens when it gets wet.
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Videos produced by Home Renovision are provided for informational purposes only. All material provided within this website is for informational, educational, & entertainment purposes only. Some of these projects, materials, and techniques may not be appropriate for all ages or skill levels. The DIY instructions used here are used to simply breakdown projects to their simplest steps. Please use a clear mind and use all safety precautions while following the tutorials provided by this site. Home Renovision does not make any claims of the safety of the projects, techniques, or resources listed on this site and will not take responsibility of what you do with the information provided by this site. Viewers must be aware by doing projects on their homes they are doing it at their own risk and Home Renovision cannot be held liable if they cause any damage to their homes. With different codes around the world and constantly changing standards, regulations and rules, it is the sole responsibility of the viewer to educate themselves on their local requirements before undertaking any sort of project. That being said Home Renovision cannot claim liability with all applicable laws, rules, codes and regulations for a project. Be safe, have fun renovating and ALWAYS stay informed with your local building code. HomeRenoVisionDIY may earn an affiliate commission if you purchase something through recommended links. #commissionsearned

[@jasonkimmel3061]

I have been itching this whole time watching you handle the pink stuff.

[@ryanbrown8398]

Great video, love the demonstrations on what actually happens when wet or charred. One thing I'd like to bring up is the pest and rodent factor. Since it compresses twice as much, fiberglass attracts rodents for nesting during winter months. Bugs also have easier access to inside the home. Rockwool is a much tighter fit, providing a better seal on the exterior. Just something I've noticed as an electrician, where I'm constantly working in and around insulation of all types.

[@topherdean1024]

Oh, thanks for that little insight.

[@jillstamets8448]

Have you noticed that the Pink slides down the wall over time? I've listened to other reviews that mention this... affecting long term R value (?)

[@MrBrianDuga]

We just had rockwool installed in a loft renovation this week. Months of rough work done where old fiberglass was left in the party walls. Neighbors complained a lot about noise, even that they could hear our conversations. The minute the rockwool replaced it, the sound difference was like night and day. Quiet as a funeral.

[@Matt90541]

lots of big KZbinrs definitely seem sponsored by Rockwool but i've heard old fiberglass doesn't retain it's shape as well over time. I have my fiberglass in my 40 year old place now and there are portions in the wall where the insulation hasn't held up well and show cold on a thermal detector. Going to try at Rockwool

[@Mike-jv8bv]

hahaha i'm stealing that one "quiet as a funeral" Honestly i don't know why the whole industry hasn't switched to rockwool yet, The cost is insignificant compared to the savings in heat and energy bills as well as safety from being naturally mold resisitant and rot resistant.

[@missyrabbit5250]

Roxul, hands down Used it in ceiling, walls, and under house. When we lost power this past winter, had minimal heat loss in house. Chose the thickest we could fit in the space

[@lawrencetalty7586]

Roxul is pricey but well worth it. I use it for every remodeling project. My wife works swing shift and would sleep in our daughter's room just because it was dead quiet compared to the other rooms. I could run the lawnmower and you couldn't even hear it running directly next to the house. Definitely made a huge difference in temperature control during the winter also

[@JoseRodriguez-pn9hx]

How about summer? Did it do a good job?

[@HickoryDickory86]

@@JoseRodriguez-pn9hx Growing up, my dad's house that was built in the late 60s/early 70s had mineral wool insulation instead of fiberglass. It was always nice and cold in there during the summers.

[@JoseRodriguez-pn9hx]

@@HickoryDickory86 nice i just want to to know it would be a good investment choosing rock wool over pink insulation.

[@HickoryDickory86]

@@JoseRodriguez-pn9hx Absolutely it would be. ✅ Easier installation ✅ Rodent- and bug-resistant ✅ Fire-resistant ✅ Water-repellent and -resistant ✅ Excellent sound control ✅ Consistent R-value due to rigidity and low compressibility

[@lawrencetalty7586]

@@JoseRodriguez-pn9hx definitely, doesn't matter what season, her room holds the same temperature. I moved the thermostat into her room to test a theory, during the winter we keep it on 70 and the whole house was down to 57 degrees before it was cool enough in her room to tell the thermostat to kick on

[@jack75252]

If you are insulating a ceiling, you can bend the rockwool and pop it in and it stays there. I found rockwool easier to work with, quicker less steps,and way less itch. With fiberglass in a wall or ceiling you need to staple it and put a moisture barrier if it is unfaced. The rockwool just goes in. Do to price I don't know if I would do my whole house, but as I have been redoing small areas the price is negligible, so I use the Rockwool. Ironically the reason I bought it the first time is because it was on sale and was cheaper than fiberglass, I liked it much better.

[@sunalwaysshinesonTVs]

After the wet, Pink grows mould etc. It compresses, flattens & every time I clean that crap out, it seems to be the preferred nesting spot for bugs & mice (filled with droppings). Over time I believe the Rockwool retains its R-value.

[@kimberlybontrager3436]

I just bought an uninsulated money eating 120 yr old house. Maybe not the smartest move. Hindsight is always better. I am watching all your videos and am learning a lot. Thank you so much

[@JJDean976]

did you end up insulating your house ?

[@angel_bunny]

I went into this with 0 knowledge about insulation. Didn't know they would be so fire resistant. Good to learn what really matters is just the price and where you intend to place them.

[@HomeRenoVisionDIY]

Cheers Angel!

[@Scorpiomaj27889]

Something I use it for, even thought it's not called for, is in walls with a 220v electric in-wall heaters. Most modern heaters are very well designed with extra safety features, so a fire is unlikely, but not impossible. Also, in a cold wall, I could imagine the hot and cold creating a moist area - supposedly rockwool is more mold-resistant. (Mold resistance is also a reason I use this on top of my HVAC trunk lines in the basement.)

[@isaacyoung-r7k]

by the time the fire is into the drywall, it's so much heat, and it's so widespread that I imagine the insulation basically melts like cotton candy after 10 seconds.

[@darktoylord]

This is like my new favorite channel. I can't even tell you how many of your videos I have watched this past week :D

[@HomeRenoVisionDIY]

Wow, thanks!

[@javahsmith2886]

And still watching 9 months later 😉😊

[@mjdedge3440]

It's great info, for sure! I'd rather hear this stuff from this guy who DOES the work, than from someone theorizing about why it works.

[@martinlapierre2370]

I found using roxul in many cottages or hunting cabins that mineral wool is a great mice deterant as opposed in to the pink stuff. I also found it much better as fiberglass for soundproofing

[@mattheww2797]

Mice love the pink stuff, don't care for the Rockwool as much

[@clintmanning4004]

Your house should be sealed so you don't have mice in the first place.

[@voodoovinny7125]

@@clintmanning4004 key word there is "should". Unfortunately, sealing houses is "new" in construction. You will be lucky to find houses built prior to 2000 that were sealed.

[@Erocwolverine42]

@@clintmanning4004 Not everybody has a new home or newer home where houses are being sealed or tighter fit than older homes. At one time it was considered "bad" having a tight house.

[@clintmanning4004]

@@Erocwolverine42Yeah I understand, I'm just stating that if you have any pests entering your home, you should comb over the outside of your home and find the access points that pests are entering and then seal them so you won't have pests anymore. Or hire a pro to do it for you. Pests like mice and bats can cause thousands of dollars in damage. I was recently working on a house that had 4 inches of bat poop in the attic. They had to hire a restoration company to remove the bat poop and all the blow in insulation, properly clean and disinfect. Then hire another business to blow in new insulation. I'm sure that whole process cost around 10k. Then finally they hired a guy to seal off the attic from pests. Should've just done that from the get go.

[@mrsoccergod5001]

Would like to see a comparison between closed cell fosm and the Rockwool insulation

[@teddepalma8057]

Great video! I did a whole room with the rock wool- an old serrated kitchen knife worked great for cutting it. I think it's better than the pink stuff for keeping critters out and for mold resistance, but maybe you could do another test to confirm that one. LOVE your channel.

[@benji888578]

STC is for transfer of sound, like when you walk on floors, but, the rockwool is better at reducing noise, i.e. it is preferred in sound proofing for studios and home theaters...Rockwool + MLV makes a big difference on what you hear on the other side of that wall

[@OriginalBrett610]

Thank you. There have been a lot of videos lately tooting the Roxul horn.. (Some admittedly paid, some don’t want you to know they’ve been paid) It is great to see somebody (you) just providing the facts without any marketing fluff.

[@japartridge1974]

Always love informed comparisons, keep them coming!

[@HomeRenoVisionDIY]

Thanks! Will do!

[@tiagosimoes7422]

Hes completely misleading though.. there are a lot more benefits to rockwool that he isnt stating.... it is mold risistent rodents and bugs dont nest and chew through it. Not the mention the r value ks close per inch... but makes a big difference when you're talking about 3 and 4 inch.. means you either meet the r value or dont..

[@snakeplisken4119]

@@tiagosimoes7422 I have to agree roxual is way easier to cut , is much less itchy, fills the cavity better, doesn't really compress and has a slightly better R Value and IMHO is worth every penny, Once you try it you will never go back

[@montanantl9176]

@@HomeRenoVisionDIY p

[@koryleach9660]

@@snakeplisken4119 Rockwool is far itchier than new OC fiberglass. I own an insulation company and if I'm working with RW I need to wear gloves, that stuff is brutal. If I'm working with OC that stuff feels like cotton, zero itch.

[@brennanoconnor2268]

Definitely wear a mask when cutting, and handling insulation 👍 protect your eyes 👀 also

[@ericwotton2046]

I've found roxul keeps the heat out better. Like it stop radiant heat much better that fiberglass. You do pay for the roxul in my area, about 2x.

[@boatworkstoday]

what about dense (wet) pack cellulose? I believe Applegate is one of the companies in the US that manufactures it? Used it in my shop renovation and so far has been impressive, but don't know about the long term...

[@adblink1379]

I would love to hear your thoughts or see a video on rigid foam board panels for insulating a basement.

[@greggo502]

Love your channel but I would repectfully disagree on the burn characteristics of fiberglass to a degree. When I was a firefighter in the city we constantly opened up walls and ceilings. The fiberglass insulation WITH THE BROWN PAPER backing especially in the walls most always extended the fire upwards. It would climb vertical in the 2x4 space. the heat from the paper burning would melt the pink stuff. When we opened up there was most times a burn or char area that was spreading.Sometimes it would be contained to that wall/ceiling space sometimes not.

[@leatt4693]

The fiberglass he shows doesn't have the brown paper backing, so your argument is null and void!

[@greggo502]

@@leatt4693 Ok for this demonstration. How many people( DYI) use fiberglass in there walls with the paper backing??? I've seeen tons of the paper backing stuff spread up a wall. Now like Jeff said if it gets thru the sheet rock that takes time. But you get an electrical fire in the wall ,well now!

[@leatt4693]

@@greggo502 When I am looking for insulation I can't even find a store that sells paper backed insulation anymore. Old homes will have it though and I have owned and replaced that insulation due to fire hazard.

[@austinluepkes5484]

@@leatt4693 try Menards, Home Depot, Lowe’s

[@ItsHypedFuture]

@@leatt4693 dont know what you're talking about you aint looking i live insulation and you have no idea what you're talking about, go to literally any home improvement store youll find it

[@e.nichols5380]

I’ve got to disagree with the sound deadening claims. I’ve noticed a massive difference in sound transmission in my house since I started replacing the old fiberglass pink stuff with mineral wool.

[@joseph7105]

That is your anecdotal evidence. Actual studies show that theyre the same when it comes to sound proofing

[@e.nichols5380]

@@joseph7105 nope, as I stated it’s based on personal experience. The differences are probably negligible in most cases. There are too many variables to count. There are however studies arguing both sides I.e. mineral wool vs pink stuff.I may have had a similar experience just replacing old pink stuff with new pink stuff, I’m quite aware of that. You really felt the need to pick my obscure comment from last year out and shame me or make me look ignorant? Lol get a life.

[@joseph7105]

@e.nichols5380 Your comment was the first I saw. I didn't look at when it was posted. I'm not trying to argue, just stating what the data shows

[@e.nichols5380]

@@joseph7105 No worries, my apologies. I posted that after renovating a kitchen from the 50’s using rock wool to replace original fiberglass insulation with a noticeable difference.

[@jamesbowen6144]

I live in MN and My Choice is to super insulate the stud bay with 1" pink foam board and finish with Roxul in 2 x 6 walls ...

[@BenjaminKreis]

Your humor and accent remind me of The Red Green Show. Love it.

[@umchoyka]

This video is pretty much spot on. A couple of other minor notes for new renovators: * Some people have a very negative, almost allergic kind of, reaction to fibreglass. My wife is one of those people. It doesn't bother some, like me (thankfully). Rockwool does not have this problem * All fibreglass insulation is the same. Pink, White, Orange, whatever. It's all made to the same specification so you will have a consistent install no matter what is available in your area. * Do wear a filtration mask when working with fibreglass. Inhaling the fibres can cause long term health problems and the fibres are going to be airborne while you're working.

[@xXstewieXx100]

Yes and no. Technically speaking manufacters are regulated to 90% of R value.

[@anthonyjoe9139]

Yeah, you'd have to wear a respirator to even enter half the metal buildings, basements and attics in the land if its bad to breathe.

[@user-nh3gu1ge3d]

@@anthonyjoe9139 You misunderstood him. He said "when working with fiberglass". When you work with it, it agitates it, throws particles in the air that you breathe in. If you are not working with it, simply around it, that is not an issue. He is correct. If you've ever worked in an attic crawling around in fiberglass, you'll notice that your lungs, esophagus, airways, etc. hurt/itch afterwards, because you've breathed in all the fiberglass particles. This is similar to asbestos. Asbestos is "safe" to be around, but whenever working with it, i.e. tearing things out and aerating it, you breathe it in and that is not safe.

[@anthonyjoe9139]

@@user-nh3gu1ge3d I didn't misunderstand. I wouldn't use it any more than I would asbestos. It's nasty. The attic is full of the fibres. The crawl space is full of them. I had a storage locker insulated with that garbage. That stuff got into EVERYTHING and no one was AGITATING it! Every box had that crap all over and in it. Tell me the fibres aren't working their way into the house. Who knows how much of the dust is that crap even if it's not as obvious as in my storage locker. I can't go into the attic or crawl space without a mask that crap is EVERYWHERE. It is garbage! I would never use it even for a chicken coop. It ought to be banned and the companies that make it ought to have to pay to remediate the damage.

[@user-nh3gu1ge3d]

@@anthonyjoe9139 Errrr, what? I think something was wrong with your house, bro. Every house I've ever been in has had pink fiberglass insulation and I've never seen that issue. Hundreds of structures, including businesses (look above the drop ceilings and there's probably pink stuff). Maybe your home used inferior stuff, had a pest problem, an issue with humidity, etc. etc. etc? Idk but sounds like a you problem. It's fine unless you agitate it.

[@mbrown2886]

Roxul insulation is just what I need to use in a Garage Wall that Has already been Drenched by a Broken Water Pipe. Thank You for comparing the Insulation!

[@michaelford2120]

I recommend your videos to everyone working on home projects. They are extremely informative and I always get the feeling of, here's the best information on what I've experienced, but you decide.

[@brandonv8721]

Mineral wool for mice and bug resistance, replaced all my pink with it and no more bugs and mice

[@Nikuser]

That's interesting. I'm redoing my attic insulation and have had wasp issues.

[@leanneb6622]

@@Nikuser I just asked about doing a video on attic installation. This is good to know. I was told mice dont like blown in cellulose ( on top of existing batt) because it falls back on top them. Im wondering if roxul is better for attic under the cellulose as it doesnt compress as much as the fiberglass.

[@markhoffman1646]

@@leanneb6622 in my attic, I did 1 layer of rockwool then blew in pink insulation on top of that. Bugs and rodents don't like rockwool, it, cuts them.

[@TommyAlanRaines]

@@leanneb6622 I live in an area of the US were we have Sand Storms and Cellulose attic spaces collects all that sand and it gets heavy. Over time it can and does cause ceiling to fall. No mater how tight you think you house is the sand storms will prove its not lol .

[@scottkrienke-turvey1306]

Shortly after Roxul was readily available I built a chicken barn addition (50x100' on an existing 50x100') ... the existing barn was done with pink, at the farmer's insistence he wanted Roxul put in the addition... now there is good reason for his desire as between flocks the barn gets washed with a pressure washer so his existing barn had some issues water intruding causing sag and thus loss of heat (and more heat intrusion)... BUT, a year after build he hated the Roxul because the rodents loved it... the claim of rodent proof were greatly exaggerated... Now I know they still make the same claim so I expect that they have since added a chemical treatment to it otherwise by now a class action suit would have occurred.... personally if I was still in construction I'd be apt to use lamb's wool instead of pink or green...

[@dalereitnauer]

the best tool I have found for cutting fiberglass is an electric turkey carving knife. it cuts clean and quick and does not appear to dull. I never tried it on Roxul but i believe it would work well on that too.

[@marcimay2975]

Thank you! My husband is heading to Lowe’s. He said, “What insulation should I get?” (for the basement we’re finishing.) I told him, “ Just a minute. I’ll see what our GUY says!” You answered all my questions! 🙌🏽

[@HomeRenoVisionDIY]

Happy to help! Cheers guys

[@rustyshackleford1282]

You left out one huge win for roxul. Mice and bugs hate it.

[@fj5052]

You always make it simple, honest and with a touch of Canadian eh! TY from BC

[@cerebro1231]

I have roxul in my 2x4 walls and sealed my attic with open cell foam 5 inches thick. My home temps and humidity does not fluctuate drastically like before adding the insulation. And central ac run times are cut almost in half from 9 hours a day to about 4 hours a day run time. Located in Hawaii.

[@yvesg1608]

Nice to have a visual comparison. I can confirm what others said about Roxul and mice. Mice prefer the pink stuff. My contractor used fiberglass for an add-on at the cottage. I replaced most of it with Roxul. The only place mice came through was through the pink fiberglass. I'll change that section now to Roxul.

[@raulvasquez3298]

Thanks for the video. I always thought it was called Rockwool and not roxul. 25yrs in construction and just got it right. Thanks

[@raulvasquez3298]

@@OU81TWO thank you for the knowledge my friend.

[@AndrewMiguelez]

This is so spot on. Rockwool/Roxul is awesome stuff. But the modern fiberglass is so close, it usually doesn't justify the cost. Ironically, you mention Mapp gas vs propane and I see the exact same comparison but you strangely pick Mapp gas... 130° F difference (3.5%) and a substantial increase in cost.

[@bigbob3772]

The BEST trait of rockwool is NO MOLD- unlike pink stuff.

[@Elsa-qy9hr]

Wow this was an excellent breakdown. You even covered sound barrier and price 😊❤ I love this guy!!

[@xangboss]

Here i was, seeing this video uploaded and thinking what did i miss when insulating my garage for the past 4 weeks :) luckily no bad news!

[@BatmanBennett]

Thanks for this information! I am building a house right now and was concerned about rockwool vs Owen’s

[@joedance14]

Your videos are always instructive and fun. Thank-you. Regarding the choice of insulation, the attic gets dirty, and South Carolina gets very humid and damp, regardless of season - and that humid, damp air circulates through the attic. We need insulation in the attic, but I guess I’ve developed reservations about “the pink”. I am also wondering whether to go with a radiant barrier, traditional batts/blown-in, or both. Your thoughts on these matters would be much appreciated.

[@davidawilliams8603]

I have a stand alone brick garage that is over 50 years old. I would use the mineral insulation inside the ceiling joists. As of right now the roof subfloor is exposed to the air. It gets FREEZING in there in the winter so I hope that mineral insulation will help.

[@williamharvill7492]

Your level of insight showcases your years of hard work and learning the content knowledge. You make the topics so much more understandable through your detailed explanations and rationales. Thanks for creating this do-it-yourself content! I am learning an incredible amount from what you produce alone, or whatever size production staff you employ that makes this happen. Please know you are appreciated, Home RenoVision DIY!

[@dsfodor]

When I open a wall during a renovation, I find the pink stuff has always lost its fluff and in turn it’s R value. Roxsul type insulation fills a cavity way better and you don’t end up with dead space that is missing insulation. Pink is old school.

[@HectorSaIamanca]

Fiberglass is so dated owens corning is making mineral wool now that really says something.

[@angellas.1314]

I agree. I’ve seen it also collapsed as my windows were replaced.

[@Usonian7]

Agreed!!!

[@jimmypchacko]

Its rated to hold its r value for 20 years. I never understood why but it makes sense any water or settling over time and its garbage. The mineral wool is good for the life of the house. Yes its more expensive but if you plan on passing the house on to future family members its probably worth the cost.

[@Not_Sure_]

This problem is only on the walls not the attic. So it makes more sense to use the pink stuff in the attic. Right ?

[@angellas.1314]

Okay. But which one will collapse in the wall faster after 10-20 yrs. My pink insulation is now collapsed inside the walls. So it’s basically non existent insulation and my walls are FREEZING here in CT. Can you advise on that?

[@drackar]

The mineral wool won't collapse. Pretty much ever.

[@angellas.1314]

Drackar ....Thanks for confirming. And that’s why I had my basement insulated with Roxul.

[@goodwince]

What about sound? Obviously you have soundproofing stuff, but at the price for the roxul - it might be worth it if it's slightly more soundproof in my basement. May go with it anyways since it's potentially more damp.

[@mattmccaffrey4299]

Best teaching channel on KZbin on the trades. If your son decides to follow in your footsteps he's very fortunate to have you as a dad and teacher.

[@WhiTiger]

I love your product reviews/explanations!! They are so helpful. Appreciate all your hard work to give us good information.

[@HomeRenoVisionDIY]

Glad you like them! BTW How is your area doing after the storm? Are thoughts and prayers are still with you and your community!

[@WhiTiger]

@@HomeRenoVisionDIY Thank you!!!! It took 18 days to restore the power grid to everyone. Our local linemen and power crews crews were joined by crews from across the country and Canada, along with the Iowa National Guard, to form a team of over 2,000 people. Otherwise it would have taken much longer. Clean up still continues. There are still people homeless because their homes are too damaged to live in. There's more work than contractors. Building supplies are in short supply. Some contractors have taken it upon themselves to travel to other major cities to pick up supplies because it would take less time than waiting for them to be shipped in. Most schools in that area started yesterday. Our school district delayed a week and started the end of Aug. but we didn't have the damage to school buildings like the city did. You don't happen to have any tips on fixing up trailer houses, do you? I am seeing a lot of posts form people trying to get repairs for their mobile homes.

[@frankrambo963]

i worked in the domain and i went to school in this.. i always tought that the minerals one(roxuel-green) was 10x better.. well now i know! cheers✌️

[@philipatha]

THIS IS WHY IM SUBBED. Damn good Jeff. Damn good.

[@valdesigns1346]

This is awesome info. I was just about to go to Home Depot to fix a drywall spot that gets wet in severe storms. Now I know which one I want for that spot! Thanks! Great channel!!!

[@diannahall7727]

I love the comparisons. Especially the foam spray one a while back.

[@zaintareen2121]

I used both in my basement. The roxul fits much more snug between the studs but takes longer to cut than the pink stuff.

[@deanwilson7047]

Excellent comparison Bro And finally a honest one

[@thetruthfulone73]

Love watching ur videos as they are simple and straight to the point and explained clearly. Well done keep up the good work 👏

[@flaron352]

What do you recommend for stud framing? 2x6 for R-19 or 2x4 for R13? I think 2x5 framing would be better carpenter says 2x4 with R-13 is adequate. We do get cold in Tennessee and snow 20 degree nights many times in winter

[@luisespinoza263]

Any review on the foam type?

[@MrNiceGuyMEGA08]

I use an electric knife (like for cutting a turkey at Thanksgiving) for cutting Rockwool insulation. WAY better than a bread knife or Ginsu. I love the vapor permeability and resistance to compression that Rockwool provides as well.

[@danlux4954]

I used a regular saw, had to cut every piece because of 12” on center floor studs.

[@maryjonorum107]

Have you compared windows? When should a person replace windows? Pella? Anderson? Marvin? ....If you live in Minnesota....

[@emilydingman5670]

What about spray foam insulation and foam board? How do they compare with Roxul for a wet farmhouse basement?

[@leatt4693]

I am using the Roxul insulation for my garage as it will have a higher chance of getting moisture build up.

[@brucej99820]

Cool, now I know to get Roxul. Good for Alaska because if you ever happened where oil ran out during winter. You know the house going to be covered in frost during night winter

[@christopherjenks85]

Are there any benefits from insulating the ruff rafters?

[@c0pyimitati0n]

What insulation is best for a garage? More specifically, my garage ceiling. It gets so much colder/hotter in my garage than it is outside or in my home. I hate that i can't leave paint or liquids in my garage during the winter.

[@evancombs5159]

I've seen many videos on the fire resistance while the rockwool is consistent, the fiberglass sometimes does well sometimes bursts into flames. I kind of wonder if it is a difference in temperature. At the higher temperatures the fiberglass might melt before it can catch fire, but a lower temperature, which may be more normal for a fire house might have a different behavior. While that difference might not have an affect on if you live or die, it could make a difference in how much your house and items are damaged.

[@maranash71]

Is the rock wool more eco friendly?

[@AVCastillo007]

very informative. Still doubting what to lean towards but I have a better perspective thanks to this video.

[@KingYang05]

Hey I just heard you on the BP podcast! It was so good, I actually saved it to my favorites to replay later. I loved the info. Lots of gems dropped by you. Thanks for all you do!

[@bobvilla2508]

What is the BP podcast?

[@goodwince]

@@bobvilla2508 Bigger Pockets

[@jenngildred]

That Ginzu knife almost got Mr. Winkle. LOL My husband and I love your videos, Jeff. Keep em coming!

[@xkaboomx]

Could you make a video discussing how best to deal with new builds that has insulation wrapped in the basement with no studs? Should you just put the studs further away from the wall and leave the builder insulation? Or rip the insulation off and redo it after the framing.

[@michaelunciano3543]

Hi jeff,, first i bought a laminated flooring with attached underlayment,, can i put another underlayment on top of my vabor barrier on basement concrete flooring? Thank you in advance

[@danielsugano5801]

My favorite reno show. I learned a lot. Thanks

[@AmosAmerica]

Thank you for this post! It's extremely helpful. I am doing sound insulation in my apartment and my upstairs neighbors seem to like to share their water with me via my ceiling. I will avoid the pink as I need an insulation that will dry out.

[@benlin1526]

Think I'm going to suggest the rock wool just because it's a back garage and it's prone to moisture and potential water leaks.

[@denalikid72]

We need a spray foam (closed cell ) vs Rockwool comparison! Great content

[@scorpion068]

Sprayfoam is the king of insulation but $$$

[@narmale]

there is none, spray foam SUCKS... try cutting in something after you spray it... not happening

[@adblink1379]

And rigid insulation panels! (XPS)

[@narmale]

@@adblink1379 they just installed some of the 4" xps at the job, $40.00 usd a 2x4' sheet... and they were bringing it on tractor trailers

[@ryanbrown8398]

Building materials better be completely dry before spraying closed cell. Also, all wiring needs to be run with no twists or kinks, or it might overheat and melt, breaking the circuit. Troubleshooting electrical issues creates a huge mess of torn out foam, that usually never gets reapplied by the general contractor.

[@matty1195]

yes no doubt these are some of the Big Questions.... Often I find my biggest struggle is choosing between the pink and the brown.....😇😜

[@aingerous]

I find that the brown is a little tighter fit along the stud. Wait, what are we talking about?

[@patriciawrona7136]

It seemed so clear in the video, and now the discussion is bringing in terms like Rockwool, Mineral Wool, what the heck is that? Are those general terms for the same stuff Jeff is calling the trade name of Roxul? And while we are at it, what about insultation that has paper on one side of it? What is that, and what situations do you use that, just that it looks good from the inside if you have an open wall cavity or ceiling or attic installation?

[@LackeysLack]

The technical name is stone wool or mineral wool. Rockwool is the brand. Roxul was Rockwool's former brand name for the stuff (now it goes by ComfortBatt). There's more manufacturers of it than just Rockwool. I had some Lowe's near me stock Rockwool, and some Lowe's stock Johns Manville mineral wool. I bought some of both to compare, I preferred the Rockwool, it seemed firmer and a little easier to cut cleanly, but it is pricier than the Johns Manville. Although the Rockwool has a 30% bulk discount that makes it slightly cheaper than the Johns Manville. Both are rated R-15, the Johns Manville is a yellowish creme color while the Rockwool is a darker concrete sort of grey. The insulation with paper, the paper is called kraft paper, it's a vapor retarder, not a vapor barrier. That is, it only slows vapor penetration, it doesn't flat out stop all water vapor from coming through. (although this is actually not a hard is or is not, there's degrees of permeability, there's just a certain amount that is defined as "a barrier" or "a retarder"). You use it because water vapor getting into the walls is a problem when it condenses out from a warm vapor to cool water across the temperature gradient across the wall thickness. It traditionally goes on the side that is warmer, because warmer air can hold more water vapor than colder air. This warmer air is generally the inner side in the north where buildings are mostly heated throughout the year. In the south, where there is both heating and cooling, it's more optional, because: the only hard rule is that you do not do a double vapor barrier, a barrier on both sides of the wall, inside and out. In that case, water can't escape once it gets in, and starts rotting and rusting the inside. You have to provide an escape route so that "the wall can dry".

[@crystalzhang8311]

Jeff, what insulation product should I use for old wood garage door in Manitoba?

[@mohammadesmaeili5602]

You are amazing. I hope one day you make a video how apply epoxy in garage and which kind of product is better. Oil or water base, one part or two parts. I tried different ideas and they do not last. I saw videos some companies come and grind the floor and apply something which I cannot find in local stores. Thanks.

[@just621]

this

[@philindeblanc]

or the poly-cement microtopping..Thats what we nee Jeff!!! I bet you'd have a slick idea of simply using a coloring agent with selfleveling vs boutique cement brands for overlay.

[@jackmason7518]

Good Morning again. My ceiling is open in the basement. PS can you use both so if there is water pipes you use the Fiberglass. And if I use the pink do I need the paper on it up or down or with out on both sides. Thank you Jack

[@riggsron]

So if you are building an insulated board and batten shed, use Roxul in the floor and pink in the walls and ceiling?

[@ashonweb3]

So I decided to purchase Roxul for use under a pine tongue and groove ceiling due to its fire resistance - in this application, would you believe Roxul vs Fiberglass insulation is worth the cost? I know the video cited those differences as negligible assuming the presence of sheetrock, but this will be between two layers of wood (subfloor and the kitchen ceiling.) Thanks for the great content. You've helped so much on my DIY journey! :)

[@peterwest323]

Roxul would be my choice. The consideration of "fire having to go through drywall first" is a logical fallacy - as many fires start in wall and attic spaces. And that mainly due to rodent activity - so use a less hospitable insulation which as a bonus cannot contribute to combustion, is sound proofing, is water proof, seals tighter, and suffers zero R-Value drift (i.e. loss of r-value over time). FYI, fires starting in wall and attic spaces from rodent damaged nm wire is why arc fault breakers are now required.

[@obloj]

Jeff great review straight forward explanation and easy for understand no sales gimmicks just facts.

[@cgravelle]

One thing I would add, is if you have to try and pull it behind any strapping (or other) when doing a retro installation. The fiberglass is easier to pull through, the mineral wool just pulls apart.

[@davidshaw5126]

Rock wool is way easier to work with when doing walls. I use a large bread knife to cut it. Yes a little more expensive but time is money.

[@narmale]

alittle? its 4 times more expensive...

[@linhhoang1363]

@@narmale 1.6 times more dude. Jeff has said that in the video

[@narmale]

@@linhhoang1363 ya you can say anything in a video, i just remodeled part of my house and rockwool was 4x more expensive

[@linhhoang1363]

@@narmale wow that's a lot, sorry for you. Must be because of region

[@koryleach9660]

It works about the same if you know what you're doing.

[@foustytouton3490]

Any thoughts on the effect on air quality? Roxul seems to be less harmful, but is that only when disturbed/installed? Is there a health factor for the inhabitants?

[@George.Lopez415]

Does rockwool insulation in wall need a vapor barrier sheeting before drywall goes up?

[@som1980]

Is Roxul better for insulating gas pipes on a roof too? Is that something I can do myself or just let a contractor do it?

[@CreativeMechanic]

Zip sheathing vs regular OSB and housewrap!! Also insulated vinyl siding vs hardie plank!!!!

[@FragThePlanet]

Because of your videos and help from a friend who built house, I've saved thousands on labor costs by doing a lot of work myself... So I went with the Sound proof Roxul... I'm only doing a couple rooms here and there so it's not a huge cost, maybe a couple extra hundred bucks. However if you're doing an entire house I could see how the pink stuff could really end up saving thousands. Thanks for the video very informative.

[@sherrymiller4069]

Thanks so much for the video. We are researching insulation now to go into the ceiling in our basement.

[@HomeRenoVisionDIY]

Fantastic!

[@AmazonWebService98]

r30 rockwool

[@bennewfield3038]

I'm loving the roxo or mineral wool for a few reasons. The biggest it doesn't leave me itchy lol. With the pink fiberglass insulation I find that I need a mask, long sleeve shirt, and gloves. And I tape the gloves to my sleeves. The first time I worked with mineral wool I was in love 😆. Way way easier to install. There's no itch to it and I find that it not only makes the house feel warmer but it seems to be a good sound barrier as well. Yes it's a little more expensive but worth it I say.

[@nytrusbk]

Jeff i had no idea... i have been wrestling with what to use in my basement for a while as we clean out the junk, piled up over the years..... so if i was to follow this i would mostly use Pink and some Roxul around like the water bib and base and if i get to it the behind the bathroom wall.... and likely the ceiling to help with sound damping

[@cyrilasfrenchyaz]

Which one would you put on rafters?

[@topherdean1024]

😂Great video. "If the fire gets through your drywall, you're already dead." classic and true. I'm remodeling my Dad's house in NYC but I live in Hawaii so know nothing about heating or insulation. My house has neither. My Dad's house is 111 years old and there's no insulation in the walls, but I have to replace the plaster lath in one exterior wall, so going to insulate while I have it open. The reason I have to redo the wall is because the roof leaked for years and totally destroyed the plaster (covered by paneling) so maybe I should stick with rockwool since it's possible this could happen again in the future. Thanks for the education.

[@thomasyang1868]

Do you have a video on insulating exterior walls for climates that have hot summers and cold winters? Can't find good information on preventing mold, what's needed for the wall (vapor/air barrier/retarders).

[@kyarakll4os7]

Can you do a video about dense pack cellulose. When it gets wet, dry time(after it gets wet) fire, cost, ease of use, different applications?

[@purenergyat52]

YOU are always such a bundle of information.

[@sendmedics]

What would you suggest for a basement cinderblock wall?

[@chevtruck1000]

I think the only thing I've ever had anything like an allergic reaction to is pink insulation. Rocksul , no problem. There is the critter issue as well.

[@jenniferhilliard6910]

I'm planning a renovation of my really old house (tearing out all the plaster and lathe...*shuddering*). The bedrooms share a wall, with a cast iron radiator on each side. Should I insulate that wall too? Should I use the faced insulation there too? (just learned what the heck that meant...LOL) Which side gets the barrier?