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

can rockwool be used for interior walls for the heat to stay in the house??

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.

Hey Matt what that fire code?? for San Antonio?

I like listening to you explain these products, but to me, I just smile so much wider cuz I don't have any building codes!
Building codes only steal money and make homes rediculously expensive.
But I checked you out before I committed to using rockwool, so thanks.

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.

Rockwool for acoustic projects, all day!!!

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.

Is safe though? # Aspestos

I’m installing it right now

How well does this product work against cold air?

Can the Rockwool Comfortboard come in 4x8 sheets and be used on the exterior of the foundation wall for insulation, termite prevention, bulk water shield down to footing drain, and protect the waterproofing on the foundation wall during backfill?

Like a... "Parka", really missed the opportunity to say Parka, @Matt

Can you use comfortboard in place of safe’n’sound or comfortbatt? We have a few bags of confortboard over and would want to see if we can use it before we spend more money to buy comfortbatt/safe’n’sound.

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

wire using for rock
wool holding were i can get?

Great video, Matt.thank you ..
I have one question. I live in PA , my attic has no insulation at all . But roof does have faced down fiberglass insulation.I plan to put Rockwool between slap . Do I need vapor retarder under Rockwool? Thanks for your reply..

This is honestly a really great video..good job

What's the difference between safe and sound and the Comfort batt insulation that's rated R 15, both look pretty much the same

Beware of formaldehyde used to bind the agents. Look for GreenGuard certification for safety. Which brands are safe? I'm not sure.

Why don’t YT influencers just say what company is paying them money to make the video like they used to back when the laws were enforced?

I've seen rock whool below grade what's up with that ?

Rock wool cancerous?? Denny says

Rats will

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.

wonderful show this really is Matt.

For all the followers commenting.. how often do y’all use this in attics ? Panhandle Texas climate.. super hot in summer & cold winters .. thanks

You don't recommend a mask? First and foremost. Breathing that shit in is awful. 21 years insulating. Trust me.

i need to sound proof a room do u recomend safe n sound or fireglass pink thanks

Comfort board instead of R6 Zip on the exterior?

Is Rockwool good for hot humid climates? Like in tn.

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.

How do mice feel about Rockwool?

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.

Great Job Matt. Thank you !!

I hope Rockwool goes out of business. Some dipstick decided to raise the price of the R15 by $21 overnight. Fiberglass it is now! I've been telling all my people. And my people have been telling their people. Rockwool has already lost 10's of thousands! Spread the word, birds.

I saw a live demo of Rockwool, vs. Denim, vs. Pink Panther fiber glass and the cheap Pink Panther stuff destroyed Rockwool and Denim hands down in sound absorption and blocking abilities. Like 2 dB more than Rockwool Safe'n Sound.

Where can I buy Rockwool wholesale

i use rockwool for hydroponics im assuming this type is way denser

but you can't find the 24 in ... retail

Will home buyers care about the difference and or pay for the difference?

Matt couldn’t of explained it any better

I have a few Safe'n'Sound packets and I wonder how much does it insulate compared withe the ComfortBatt. I assume it insulate in a way?

Can I Use comfortbatt for my basement ceiling? What would be the benefit from using safe and sound over the comfortbatt? My Lowe's has no safe and sound in stock. Thanks!

What about crawl space joists?

In my case, want the heat to stay IN the house!

Matt I am looking to use Rockwool during my vinyl siding install project.
I have an old A/C unit that needs to be removed and wanted to insulate the open cavity
which Rockwool would you recommend ?? for insulting the cavity opening
where a/c unit once was - then the plan to use Zip OSB board to close up the opening. Thank You Lorraine

In my old house I could spend 20 thousand to insulate my old home to save 50 dollars a month. Things don't add up to me.