Rated 4.8 out of 5 by 284
Rated 4.0 out of 5.0 by BOttawa Good complement to sound proofing effort
Roxul is a good sound proofing solution, doing better at some frequencies than standard fiberglass. However, at ~$0.70/ft^2 is is almost double the cost of comparable fiberglass. For most people, stick with fiberglass...but if you're willing to spend extra money to get a slightly marginal overall soundproofing solution, this is a good choice.
MY SOLUTION: In 2x10 joist cavity: 5.5" dense fiberglass and 3" Roxul layer. Ceiling: RC-1, double layer 5/8" drywall with green glue 3 tubes/sht. Wall cavity: 1 or 2 layers of 3" Roxul for primary sound walls. Sound walls: RC-1 channel with double layer 5/8" drywall and green glue.
March 12, 2015
Rated 4.0 out of 5.0 by StudioBuildGuy A step up from fiberglass
Definitely better than basic fiberglass insulation for ease of installation and offers better sound absorption. It is somewhat loose compared to Roxul's 4" acoustic insulation, and doesn't have quite as good acoustical properties as the more rigid stuff. I hear some sound guys think they found a cheaper substitute with this stuff, but realize you're giving up some absorption across the whole audible frequency spectrum with this stuff, but definitely a step up from basic fiberglass insulation.
Recommend using the Insul-Knife and associated sharpner for these mineral fiber batts.
March 2, 2015
Rated 5.0 out of 5.0 by ccaps Great Purchase!
Classic example of me buying something because of solid reviews, and I couldn't be happier. We're working on a 525sqft addition. I wanted some kind of sound dampening between interior rooms. Since we're trying to keep the project inexpensive, I was planning to just slap in some standard pink R-13. After seeing the great reviews here, I decided to spend an extra couple hundred dollars to upgrade to this.
Generally, my husband does all the work. Since this Roxul was my decision, he told me to come and install it last night (he was slightly skeptical at the extra expense and still cranky with me about it). I'm a wife in my 30's with absolutely zero construction experience. I installed 3 packages of this in an hour or two last night. I also helped with the exterior wall pink insulation, and I thought this stuff was itchier, but not terrible. Anyway, it fit perfectly between the studs, just press it in. I literally even installed it in some bare, undrywalled on either side walls, and it stayed in just great and husband came in after me and installed the drywall.
We were both very surprised at the sound deadening. We can literally tell the difference when we walk into an area of the addition where this is installed. You can hear the change in your ears (more silent!), wish I could describe it. It seems to suck up footsteps, voices, anything. Even my husband was impressed enough to completely forgive the extra expenditure. I was debating not installing this on the smaller interior closets and other unimportant areas, but now I'm sold on this stuff and will install it on every single interior wall.
Tip: I had a couple of really skinny/narrow spaces in my walls, near doorways, etc. I was able to cram in the scrap pieces that I'd cut out from outlets/switches. It crammed in there really well and stayed put easily, plus a great use of the scrap. Saved me from cutting out a 4-inch strip from a fresh piece.
February 2, 2015
Rated 5.0 out of 5.0 by Amazeballs Sound, absorbed perfectly.
Roxul SnS (safe n sound) is the perfect solution to taming problem areas in recording studios, media rooms, and for general sound absorption as well.
What makes it better than most? It absorbs sound evenly, meaning you won't create more problems by soaking up some frequencies more than others, you just get nice, even absorption across the board.
The thicker you make it, the more it absorbs as well, and it's very popular for use in corner bass traps where they stack triangles into the corners.
Overall, I'm blown away at the effectiveness of this product, whether installed as insulation or framed and hung as wall mounted acoustic panels.
I even used this for an acoustic "cloud panel" with amazing results.
December 9, 2015
Rated 5.0 out of 5.0 by Rick Never going back to fiberglass!
I've owned my home for 6+ years now. After doing some remodeling and running wires in the attic I've found the entire house was insulated in 1969 with pink fiberglass insulation. I wouldn't wish working with fiberglass insulation on my worst enemy! It is nasty, itchy and just dirty. I had done some research and came across Roxul. Since I was insulating the interior walls of a basement bathroom at the time I thought I would give this stuff a try. I needed to insulate not only the walls but also the ceiling and around water pipes which you could hear running above the old drop ceiling. I certainly was not disappointed with this product. Easy to cut, hang and hardly any dirt! Not to mention the sound proofing was great.. After all this is the reason I purchased it. There is also no stapling this insulation as it fits securely between the studs. You get what you pay for. Roxul may be a bit more expensive then the typical fiberglass but it's well worth the price.
December 3, 2013
Rated 1.0 out of 5.0 by dmd890 quality has gone down
I used Roxul S&S before and was very impressed with quality and ease of install. I am redoing my basement now and of course Roxul was my choice of the sound barrier. It is not the same product as it was before. Panels are separating as soon as you take them out from the bag. Their density changed so much it is almost the same as a fiberglass insulation. None of the pieces could be securely placed between rafters all would fall apart immediately.
December 23, 2015
Rated 1.0 out of 5.0 by Ang Not as sound proof as it claims
I bought the product to sound proof between a bathroom and my bedroom, New construction and I can still hear the toilet being flushed.
I also used Roxul insulation on my other walls, not impressed with the sound proofing they claim.
Must need to add another layer of drywall roxul was not enough
October 26, 2015
Rated 5.0 out of 5.0 by Karen Best stuff ever!
I built a suite for myself and daughter in the basement of my house so we could rent out the upper rooms to supplement income. Before the renovation the sound transmission from the upper floor was totally unacceptable. You could practically hear a mouse break wind, and a person walking above you sounded like a drum. I insulated the ceilings and the walls. After the renovation I knew it was quieter but I didn't realize how effective it was until I knocked on my daughter's door to ask her a question. I could tell that there was music playing, but when she opened the door I couldn't believe how loud it was! having this first-hand experience, I wouldn't use anything else. Ever. -Karen
July 16, 2016