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

on the build show today we're talking insulation what insulation to use in the different parts of your house whether it's the exterior the walls the ceiling joists there's a lot of options out there we're also gonna take a deep dive into rockwool what are its benefits and why you might want to use that compared to some other insulation options out there today's video sponsored by rock wool let's get going all right so when I say the word insulation typically you're gonna assume I'm talking about thermal resistance right the ability to resist the flow of heat from the outside to the inside but really there's so many other things that insulation can do and should do for you in your house and that's why specifically I've used a lot of rock wall over the years and why I really like it now let's talk about before we get into where to use it and how to use it let's talk about a few advantages that rock wall has over some other things there's really eight things that I like about rock wall number one of course thermal resistance right all these products are going to resist the flow of heat from one place to another but the next most important thing behind that that I really like about rock wall is its fire resistance now I've done some demos before on this and you should check out my old videos this is a really impressive product when it comes to fire resistance this is really it's it's kingpin the thing that makes it so different from the rest of the insulation out there this can whisk the attempts greater than 1,800 degrees Fahrenheit and when you use it in various places in the house it's gonna add additional fire resistance to your structure this is a really big deal now in particular comfort board which is the outside insulation can be used in a wildfire urban interface area WI to give the overall house fire resistance from the outside but you're also gonna see later in the video how we're gonna use some of their other products like safe and sound for fire resistance inside the house number three acoustic capabilities again this is a killer benefit of rock wall compared to traditional installations it's much more dense and as a result it's really gonna do a great job of stopping sound transmission now if you've ever been to a builder share like the International Builder show Rock will build a tunnel a u-shaped tunnel no door at either end and all they do is insulate this tunnel the stud wall with rock wall bats in the walls and in the ceiling and when you go into the center of that you you are gonna be shocked by how quiet it is there it really does a great job of knocking down sound transmission number four water repellency this is a especially important on the outside of the house when you're using comfort board this is a hydrophobic product meaning it's afraid of water and if you see water go on it it just runs like water off a duck's back you can see it's not soaking in traditional installations tend to soak up like a sponge this is gonna run off it's not gonna soak in number five this is made from recycled material in fact one of the big ingredients for this is slag which is why you call it mineral wool or stone wool this is leftover from the steel industry and so you've got a great recycled content from this there's a really good Green story behind this next up it's dimensionally stable compared to other installations especially foam insulation which tend to shrink over time this is much more dimensionally stable and then another big deal especially when we're talking about the outside of the house is that this is a vapor permeable or a vapor open insulation if you're in a cold climate you're gonna use a vapor permeable house wrap on the outside of the house you also want a vapor permeable insulation so for instance when I went to Vancouver recently and saw those builders in that very cold climate everybody was using comfort board in that climate zone and that's a great place to use this because we want to be able to drive through to the outside in the winter time in a cold climate and lastly there's some new research coming out that insects will not tunnel through this so if you're using comfort board for instance on the outside you don't have to worry about bugs tunneling through it like you would in a traditional foam insulation on the outside all right next let's talk about the different options and where to use it now if you look at their website they have a great website by the way definitely worth getting on there for some case studies and some also amazing diagrams of wall assemblies where to use it how to use it but let me give you the brief overview there's basically three products that you're gonna see on their website comfort bat first of all that's this right behind me this is a 2x4 framed house 16 inch on center and these comfort bats which are ar-15 very high insulation value for that small amount of space are super easy to install and there you're gonna cut it with basically a bread knife just like you'd buy it the grocery store a serrated knife works well or this is an insulation knife that can be resharpened and it cuts super easily you really just need gloves and some long sleeves and you're good to go okay now when it comes to comfort bet you can get in all the flavors and options you want to buy for 2x6 construction 16 inch or 24 inch centers so that's your exterior walls now another product that's really a big deal for builders like me is safe and sound this is a product that's not necessarily intended for thermal resistance although it does have some you won't find in our value on the bag its intended for two things safety specifically fire safety and sound transmission now you want to use this on your interior walls your interior partitions like between your master bedroom and the rooms next door perfect place to insulate between your laundry room between your kids bedrooms and bathrooms those are all walls that you're gonna want to insulate for sound purposes but this also has some fire resistance capabilities and this is a big deal you know there's builders all over the nation that are using I Joy's for their first floor and in their basement traditionally they'll deliver the basement to the client unfinished that they might finish it later and for years builders didn't have to do anything for fire resistance there but codes have changed as of the 2012 codes you need to insulate especially there's I Joy's with something that's going to keep fire resistance down and really about your best option out there and one of the only options is Rockwell's safe and sound batts again you can get this in different sizes 24 or 16 inch on centers very easy to install you're gonna use a metal wire to hold it in place and then once those bats are in the ceiling down there now we've got a rated assembly now check with your local codes you may or may not have to add drywall on top of that for extra fire resistance but what it's doing basically is it's gonna protect the web OSB 1/2 inch web on those eye joists from fire damaging those and making that structure crumble if you had a fire it's gonna give you a longer amount of time before that floor assembly is going to want to crumble in fire so safe and sound that's going to be used on interior the house between floors and between rooms now lastly let's talk comfort board now I mentioned a couple of big deals about this and why you see it used so much is because it's vapor open this is a perfect exterior insulation to use now it's a little more dense than are there installations that's why they also sell it in these two foot by four foot sections so you can handle it a little bit easier but you can see this two inch comfort board 80 is going to give you are eight on the outside of the building so this is a perfect use to wrap your building and as I mentioned I saw that all over the place in Vancouver some builders just using a couple inches and some builders getting really thick with their exterior insulation you know my friend Joe ste brick says don't eat your sweater wear your sweater and what he's talking about is this insulation is good here but every time we've got a stud here we've got a thermal bridge we've got a place that heat is conducted through more easily than this area so by wrapping your building with comfort board on the outside of the house you're really gonna stop that heat transmission and it's going to really increase your overall thermal resistance of your walls guys thanks for joining me on this deep dive on insulation and specifically the advantages that rockwool has over a lot of insulation options in the marketplace now stay tuned for future information on this topic I've got some California builders that have really had to change their practices over the last ten years based on that W UI that wildland-urban interface we're gonna do some videos on that later in the year I also have a bunch of old rock wall videos that are still applicable today I'll put a playlist on rock wall down in the description below and as I mentioned go to their website they really have a terrific website with lots of good details in case that is worth going to now if you're not currently a subscriber to the build show hit that subscribe button below we've got new content here on YouTube every Tuesday and every Friday and oh by the way if you don't know I started my own network build show network calm has several other like-minded builders and an architect Steve basic posting one new video week so we actually have six new videos every single week click the link in the description below to sign up for our weekly newsletter so you know what's new on build show network comm follow me on Twitter program otherwise we'll see you next time on the build show

Channel: Matt Risinger

Views: 424,509

Keywords: Insulation, Where to Insulate, What to Insulated, How to Insulate, Rockwool Insulation, Roxul insulation, Mineral Wool Insulation, Spray Foam Insulation

Id: GbmEXMf005Y

Length: 9min 47sec (587 seconds)

Published: Tue Mar 31 2020