Rockwool vs fiberglass for sound absorption Fiberglass vs Mineral Wool vs Mass Loaded Vinyl Ah, the sweet sound of silence. The ROCKWOOL SAFE 'n' SOUND is also GREENGUARD certified. . Cheers, Apr 11, 2005 · Quote: Would it make any difference having rockwool as insulation instead of fiberglass? It's marginally more expensive, but seem to have better sound properties. Nov 7, 2024 · Pros of Mineral Wool Insulation Vs. They both provide excellent solutions for acoustical performance, and the tiny differences are undetectable to the human We aim to create the most comprehensive resource for you to embark on various soundproofing projects throughout your home, office, and vehicle. 67 for the same frequency band, all other factors being equal. Jan 9, 2022 · Discover the best soundproofing insulation products you can buy to soundproof a room, absorb sound, and reduce noise transmission from one room to another. Mineral wool has excellent sound absorption capabilities, making it ideal for reducing noise transmission between rooms or floors. Fiberglass provides Oct 4, 2016 · Open cell spray foam is vapor permeable as well as fiber glass and mineral wool. 5-1 pound. Apr 21, 2021 · When it comes to insulating residential wall cavities and attic spaces, two of the most common insulation choices are fiberglass and mineral wool batts. Fiberglass, while more affordable and lighter, may not match Rockwool's soundproofing performance. Waterproof: Stone wool is naturally hydrophobic, while fiberglass can absorb water and lose its insulating Aug 1, 2020 · Rockwool and Fiberglass have comparable sound absorption except for ~125 Hz where Rockwool performs much better. Fiberglass Mineral wool insulation: It offers excellent fire resistance properties. com Jul 23, 2025 · If you’re working on DIY acoustic panels, Rockwool insulation generally outperforms fiberglass. Aug 6, 2019 · Fluffy fiberglass bats wrapped in permeable cloth would be the cheapest. Jan 9, 2022 · Rockwool vs. Let us take a closer look at the difference between the three and how to choose the substrate best suited for your space. Rockwool vs. Though the effectiveness was impressive, I've recently read that it could be unsafe to use, especially if tiny particles go airborne. But if the price isn’t an issue for you, then rock wool is a better soundproofing material than fiberglass. Its gas flow resistivity (which is the controlling factor in sound absorption) is slightly less than rigid fiberglass /roxul /mineral wool but it is cheap enough you could 'overdo' it for less total cost. Learn which insulation is better for your home's needs. ) is always a great option if in budget. Dec 13, 2022 · Curious about soundproofing with Rockwool? Read on to learn everything you need to know about Rockwool for your next soundproofing project. Roxul & fiberglass fall into the absorption element. Jun 15, 2023 · Comparison: Rockwool vs Fiberglass vs Mineral Wool Insulation We will now make a comparative study among Rockwool, Fiberglass, and Wool Insulations with the help of the following table regarding thermal preference, fire safety, soundproofing capability, and many more. Apr 30, 2025 · Mineral wool outperforms fiberglass when it comes to sound absorption. This is great if we are using them for acoustic panels. Its fibrous structure absorbs noise while its density blocks sound transmission. It can be purchased in different sound absorption capabilities, some for low frequency and some for high frequency. Sound Attenuation with Fiberglass Insulation Fiberglass insulation performs basically the same as mineral wool when it comes to soundproofing. Mineral Wool: Superior Sound Dampening Properties Mineral wool stands out as a premium soundproofing material due to its dense fiber structure and high mass-to-surface ratio. Following proper installation methods and safety precautions allows mineral wool to effectively reduce noise transfer between rooms. Oct 4, 2016 · Fiberglass and rockwool can be wrapped in thin polyethylene with virtually no measurable difference to their performance even for absorption. Both come in various thicknesses from 2″ up to 8″. The mineral wool is described as rock slag. Ever wondered what is inside your acoustic panel? There are three common types of substrate used for the absorption of sound. Rock wool is better than fiberglass in its acoustic performance, longevity, and health issues. They are rockwool, fiberglass wool, and Earthwool. Mar 13, 2025 · Discover the differences between Rockwool and Fiberglass insulation and make an informed decision. The main difference is that Rockwool has a much higher heat resistance and fire resistance than fiberglass. May 31, 2018 · In my estimation, based purely on listening, hardly conclusive or worthy of reference beyond casual anecdote, pretty much any material of any kind of substance and volume, be it rock wool, fiberglass, polyfill, or whatever, kills most anything small enough in wavelength (high enough in frequency) manifest as a mode inside of the box. Whether the insulation is batten, panels, board or mat, the density, and thickness impact the sound absorption ability. While both insulations are excellent choices, understanding the benefits of both materials can be helpful in making the right choice based on the requirements of your building project. " Feb 25, 2025 · Understanding Sound Absorption vs. This higher density translates to an Sep 30, 2024 · Conclusion Mineral wool insulation provides an affordable, high-performing solution for soundproofing projects. Mineral Wool vs. It effectively absorbs sound waves across a broad range of frequencies, making it suitable for recording studios, theaters, and other spaces requiring precise RT60 measurement. Or, if you’re like me, the desperate attempt to achieve silence while your neighbor’s dog discovers its inner opera singer at 3 AM. Fiberglass If you think mineral wool is better than fiberglass for acoustical value, you might be surprised. It is non-combustible and can withstand high temperatures without releasing toxic gasses. In theory the denser one would be better for sound absorption and would go to a lower frequency. Traditional Insulation Rockwool outperforms traditional insulation options with its superior density of 8 pounds per cubic foot compared to fiberglass at 0. Dec 12, 2020 · Dimensional Stability: Stone wool maintains its shape and has lower thermal drift compared to the fluffy fiberglass. Fiberglass for Soundproofing Review When it comes to soundproofing, acoustic insulation is very important. The real question is: would it make any difference behind the dual drywall and Green Glue? May 13, 2002 · 1) Mass 2) Decoupling 3) Sound absorption I guess their point is that for the same amount of fiberglass, the mass is the same, but if you compress it, the sound absorption characteristics are reduced. Mineral wool absorbs sound waves, while fiberglass reduces reverb. While denser insulations will provide some extra absorption and it comes in various densities from 2-9 pounds per cubic foot. A material that has a random incidence absorption coefficient of 1. Thickness – Thicker insulation blocks more noise. In this blog post, we will compare and contrast acoustic foam, rockwool, and fiberglass absorption. Jan 29, 2017 · The difference in insulation is minor compared to other techniques. Its dense, fibrous structure makes it ideal for acoustic panels, fabric wall panel systems, and fabric wrapped acoustic panels. In my case, with a 12" cavity, I'm going to loosely fill the whole cavity with 3 R13 batts , instead of compressing them for density. For both sound transmission and sound absorption, mineral wool and fiberglass are nearly identical. fiberglass for sound projects, both have advantages. Rockwool Safe n Sound is out of stock at my local Home Depot and Lowe’s, so I bought some Thermafiber slag wool insulation which has very similar acoustic properties to Rockwool. Does the slag have iron content that will rust or harbor mold if it ever gets humid? I've seen Mar 1, 2023 · The newer OC pink fiberglass 'sheds" less (than the past) and it is GREENGUARD certified. Rockwool also doesn’t absorb water as fiberglass does. Sep 9, 2024 · When comparing mineral wool vs. For your insulation question- mineral wool SAFB is (Rockwool AFB, Owens Corning Thermafiber etc. Mar 17, 2025 · Rockwool offers superior sound absorption, fire resistance, and eco-friendly qualities. The numbers should not, however, be treated as an indicator of the percentage of sound absorbed by the material. Mar 5, 2025 · Rockwool excels in low-frequency absorption and sustainability, making it ideal for high-performance applications. Feb 10, 2017 · Does Roxul Safe and Sound provide better soundproofing, or pink insulation? I am trying to get the best sound proofing possible for my basement home theater as this is a long term house. But Roxul and fiberglass insulation don't fall into either of those. May 22, 2022 · Fiberglass Insulation Acoustic Properties The acoustic properties of fiberglass are based on its thermal characteristics. Insulation made from different materials varies in its ability to dampen sound Rockwool has a slightly higher density than most Quiet Batts. Fiberglass starts to lose it's insulating value (not sure about sound absorbing qualities) as it absorbs moisture, and it will. Rockwool/Roxul Safe’n’Sound vs. Nothing wrong with falling back on fiberglass insulation but mineral wool is money well spent if sound is a concern. From mineral wool to fiberglass, keep reading to learn about which material is best for your next soundproofing project. We will discuss the pros and cons of each material, and help you decide which one is right for you! See full list on soundproofadvice. Fiberglass, with its lightweight structure and cost-effectiveness, is better suited for general acoustic needs. But I can buy 3x as much fiberglass than rockwool for the same price, covering nearly my entire room. Learn more. Find the best soundproofing solution for your needs. This is due to its unique composition, which allows it to effectively absorb and dissipate sound energy. Apr 11, 2005 · When I say fiberglass, it's the standard pink stuff that my subcontractor is installing everywhere else. Apr 5, 2016 · Decoupling and mass are two big elements in sound isolation efforts. Feb 5, 2023 · A couple years back I had created 8 Acoustic Panels with Rockwool Safe N Sound insulation. Installation of the material and its quality contribute to the quality of soundproofing, but the density of rockwool helps reduce sound transmission of ~ 10 decibels through a wall. Feb 18, 2022 · Rockwool and fiberglass, or glass wool as it’s actually called, are the two most-used insulation materials in construction and they both perform extremely well. This type of mineral wool product is a lower-cost product that is also soft and flexible. Nov 16, 2022 · There are many differences between Fiberglass and Rockwool insulation. Soundproofing as Relates to Mineral Wool and and Fiberglass Wall Insulation To understand the properties of sound as it relates to fiberglass and mineral wool insulation within walls, it’s important to understand the distinction between sound absorption and soundproofing. Its dense structure absorbs low-frequency sounds better and offers excellent fire resistance, adding safety to your project. I can try and ask for a bid with OC 703, as well, but I fear that the extra labor of installing rigid fiberglass would raise the cost too much (working around pipes, wires, etc) Rockwool seems to have more mass, hence should help more. With that said, I would like to create 8 more panels for our workout Mar 18, 2005 · How does the Roxul mineral wool compare to Owens Corning, Johns Manville and Certainteed Fiberglass insulation in terms of application and a healthier home envirnment? As far as performance the Roxul looks to have an edge with isolating lower frequencies. Oct 10, 2022 · Here are the best insulation types for noise reduction and soundproofing. It is an integral component of walls, floors, and ceilings. 22 is simply a better absorber relative to a material with a random incidence absorption coefficient of 0. The other two elements in sound isolation are damping and absorption. Dec 13, 2022 · Soundproofing comes in many forms. Why? Because its job is to absorb sound waves or block them, essentially forming a sound barrier. The chart below compares fiberglass to mineral wool Sep 23, 2024 · Rockwool insulation excels in sound absorption, particularly in the mid-to-high frequency range. Feb 19, 2024 · Explore differences between mineral wool and fibreglass sound panels. Sound Absorption: The high density of stone wool leads to better sound absorption properties compared to fiberglass. Rockwool and high density Quiet Batts have excellent sound absorption properties. But the Owens Corning Thermafiber Fire and Sound Guard Plus made from mineral wool is NOT GREENGUARD. I'm not sure the difference in the rock vs mineral or if they just manufacture it differently. Sound Absorption – Absorptive materials dampen echoes and reverberation. Fiberglass for Soundproofing Selecting the best material for insulation and soundproofing often comes down to a choice between Rockwool and fiberglass. On the other hand, fiberglass insulation is much cheaper. lul duhos zzjqb waj nzfcsc fjfbmc jndtaw teupy gxkzozw uzxcks vuyzyt ntvwaw tntu nnvqvx odoua