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

Huge thanks to our Show sponsors Polywall, Huber, Dorken Delta, Prosoco, Rockwool & Viewrail for helping to make these videos possible! These are all trusted companies that Matt has worked with for years and trusts their products in the homes he builds. We would highly encourage you to check out their websites for more info.

[tonymeggait]

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

[paintball]

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

[SciaticaDrums]

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.

[brandoncoyle]

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.

[vpscttm]

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!

[Antonioremodel]

Matt couldn’t of explained it any better

[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 :)
:)

[sparkyobrian]

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

[MrMander]

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.

[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.

[patsykravitz]

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!

[elcam]

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.

[hcg]

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

[morrishowell]

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.

[scottsmith]

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.

[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!

[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!

[slicktype]

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

[WindfreakVideos]

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

[benjaminrhodes]

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