Rockwool ComfortBoard Insulation - Up to 48-sq. ft. - R6 - 6-pack

Article #07085032 Model #169065 Format1.5x24x48"
Rockwool ComfortBoard Insulation - Up to 48-sq. ft. - R6 - 6-pack


You can trust this Rockwool ComfortBoard IS insulation for your exterior walls and residential basements. The 6 light and rigid panels have plenty qualities such as water repellent, fire-resistant, vapour permeable, and offers excellent sound absorption. In addition to these features, they are easy to cut, do not rot nor encourage fungus or mould growth and are CFC and HCFC free. The stone wool formula is made from natural and recycled materials and have GREENGUARD certification to ensure good health for you and your family. 1.5 x 24 x 48 in. Covers up to 48 sq. ft. R6.

Technical specifications

Length :48-in Component :Rock fibres Commercial/Residential :Residential Thickness :1.5-in Color :White Thermal Resistance :R6 Installation :Exterior walls and basements Width :24-in Type :Insulation Model :Comfortboard

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Hi, I am redoing a 100 year old home and there is no insultation want to know if this can be used inside of exterior walls rather than exterior?

Asked by: froggy128
I have used this on the interior of my 100-year home (after verifying with Rockwool tech support that this was allowed). But you have to distinguish between where to use regular Rockwool batts (flexible) and Comfortboard (rigid). If you have access to the interior wall cavity (i.e.- after stripping off the plaster and lath), then it is much easier, more tightly sealed, and more cost-effective to use the batts. In my case, I used 3.5" batts in between my 2x4 studs which gave me R-14. As I live in Climate Zone 6a (southern Canada), the minimum code requirement for exterior walls is R-20. So I added a 1.5" layer of Comfortboard (R-6) on top of the studs--held on with 1x4 furring strips screwed into the studs and then finished with a vapor barrier (optional) and 1/2" gyproc. Important to caulk all the floor-wall joints and wall/window joint to minimize air infiltration before installing finishing mouldings. Hope this helps.
Answered by: artichoke50
Date published: 2020-09-21

When installing on cement wall in basement do I have to install floor to ceiling, is it possible to just install to ground level where most moisture is?

Asked by: Kgirl
to comment of amount of insulation that code requires: R-16 continuous, R20 if this is insulated framing (framing with framing factor 20% insulated with batts of R-20 will give you equivalent insulation R-16). Roxul recommended design was to install Comfortboard continuously on the wall (glue), then 6 mil poly, then regular framing with 2x4 and R-14 batts, then smart vapour retarder, and finally drywalll. This will give you R-16 continuous as well.
Answered by: RostyH
Date published: 2019-08-08

what is the R VALVE OF 1.5 INCHS  of this product

Asked by: D44444
Answered by: Matej
Date published: 2019-07-02

Can you insulate garage with this, my child’s bedroom is over the garage in our new house and there is no insulation, it’s alreadybstarting to become very cold during the nights in that room. Would the installation process be the same? Also, could you use

Asked by: Annie1118
I would consult a contractor, we use it mostly for sound deadening in high voltage electrical equipment. I'm sure you could use it but I would think you might want something thicker, having a contractor take look would be the best start in my opinion.
Answered by: Larry The Buyer Guy
Date published: 2019-07-27

Can this product be used on the skirting of a trailer

Asked by: Randy345
Yes it is waterproof and mildew resistant but it should be protected (closed in) from the elements.
Answered by: Kipp
Date published: 2018-10-31

Can I use this product under the subfloor on the concrete in the basement?

Asked by: JacksonMichael
If you install the product below the concrete then yes. However if it is on top of the concrete you want to use a product that has channels on the bottom of it to allow for movement of air so any water can evaporate properly. So above concrete and below subfloor? No.
Answered by: Traxtin
Date published: 2019-05-29

RE: Roxul R-6 Comfortboard , can I install directly to basement cement wall.

Asked by: Den19
yes you can if you're looking for thermal insulation only. but if you higher fire rating as well, then use higher R value.
Answered by: ronl
Date published: 2019-04-07

what is the r value of batts?

Asked by: alja
R4/inch so R-6 for this item
Answered by: kkukcan
Date published: 2019-02-11
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Rockwool ComfortBoard Insulation - Up to 48-sq. ft. - R6 - 6-pack is rated 4.6 out of 5 by 74.
Rated 5 out of 5 by from Such a consistent and reliable product!! There is nothing about this product that is not great! We have been working on building our school bus for the last 2 years and every time I buy a package of Roxul to install I look forward to the project. With tools as simple as a tape measure and a drywall knife or scissors you are on your way to a professional install. The only downside of this product is the fact people don't know what it is! I had a older man stop me in the parking lot of our local hardware store and explain that carrying a bag of Roxul insulation was going to make me itchy and miserable. I proceeded to correct him and explain how this product is the next generation of insulation products!
Date published: 2017-01-24
Rated 5 out of 5 by from Makes sound absorption panels for noisy room [This review was collected as part of a promotion.] I put these 1 1/2" thick batts in 1x2 wood frames, covered them with interesting print fabric, and put them on the wall in my acoustically reflective living room. People say they notice the difference right away, no more "tunnel echo" effect for normal conversations. Lots of YouTube videos on doing this with different materials, but these are the exact size for cheap furring strip frames and they are easy to work with and cause minimal irritation when handling.
Date published: 2019-05-01
Rated 5 out of 5 by from Easy to work with! We are doing a legal suite in our Edmonton home, Safe and Sound is being installed in all joist spaces and Comfort Batt Thermal is being installed on exterior walls. We don’t even have everything insulated yet and we have already notice a MASSIVE difference in temperature and noise dampening from upstairs. The extra cost to install Rockwool instead of regular fibreglass insulation was with out a doubt a great investment to our income property.
Date published: 2019-02-10
Rated 5 out of 5 by from Extreme Fire Hazard Zone Protection Our house is in the Wildland Urban Interface and the City has designated our site as "extreme" for fire hazard. Initially we were limited to a very few products for our house skin, none of which fit our project goals and aesthetic desires (high performance rain screen system). We found the Roxul products on-line, ordered samples, reviewed all the specs and presented our case to the local authority to demonstrate that the Roxul products would allow us to meet the exterior fire requirements by creating a break between the skin and the interior. In the end, the Roxul allowed us to be creative with our finish materials and shell. As far as we know, we are the first in our community to use the IS. Just as importantly, the Roxul won't grow mold or breakdown with moisture. The crew really enjoyed working with the product; easy to cut and didn't tear up their hands and arms or hurt their eyes. Roxul is on our list along other awesome products we found on our journey to present to the local sustainable building program committee. Oh yah, and not only does it provide the fire resistance, it provides excellent thermal performance. We used the batt in the walls on the interior and the IS on the walls and roof.
Date published: 2016-03-12
Rated 5 out of 5 by from Greaat stuff! We used this in making sound deadening panels at Inland Div. GMC when i was a sheet metal worker there. Wrapped it in 4 mil plastic to keep water off of it. Never had to go back and re-do any of it
Date published: 2018-03-26
Rated 4 out of 5 by from Have already done my sill plate - I used Rockwool Batts R23 to insulate my entire sill plate of our basement myself at age 63. Glad Lowes also has this as this is next to do the cement walls in Is 80 then build out a free standing wall a ft or so out from the IS 80 foundation using pressure treated plate for the wall base and then reg. studs with then batts in the walls w/ Mag. Oxide wall board on top as no worries of paper absorbing water vapor. I want a breathable basement not a plastic covered sweatbox & Rockwool is a big part of that ticket! Thanks Lowes for carrying this!
Date published: 2018-07-31
Rated 5 out of 5 by from First time using comfortboard We used this product on the exterior of a home remodel/ addition to stop thermal transmission through the framing.
Date published: 2018-03-16
Rated 5 out of 5 by from Yes I will use this product I used this in the walls on my 28'x40' two story garage. Love this product. It's very easy to cut with a bread knife. It stays in place & wont sag..
Date published: 2018-07-06
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