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Safe 'n' Sound 3 in. x 16-1/4 in. x 47 in. Soundproofing and Fire Resistant Stone Wool Insulation Batt (65 sqft)

Buy 15 or more $50.15
  • Sound reduction and fire resistance for interior walls and floors
  • Compression pack, one bag includes 12 pieces and covers 65 sqft
  • Made from stone and resistant to water, rot, mold, and mildew
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Product Overview

ROCKWOOL Safe'n'Sound is a stone wool insulation for use in interior partitions of residential wood and steel stud construction where superior fire resistance and acoustical performance are required. Withstanding temperatures up to 2150°F (1177°C), Safe'n'Sound is non-combustible and will not produce toxic smoke or promote flame spreading, even when directly exposed to fire. This adds valuable extra time for people to reach safety and for fire services personnel to arrive. Safe'n'Sound has excellent acoustical dampening properties and provides an easy friction fit into walls, ceiling and floor applications. It is GREENGUARD Gold Certified and contributes to a healthier indoor environment. ROCKWOOL Safe'n'Sound offers you an environmentally friendly choice to help soundproof your next home renovation project.
  • Roxul is non-combustible and delays the spread of fire between rooms for added safety
  • Easy to cut with a serrated knife to fit around doors, electrical and plumbing
  • Water resistant, stone wool does not rot or promote the growth of mildew, fungi or mold
  • Bag covers 64.0 sq. ft.
  • Stone wool provides excellent noise reduction and sound absorption to help you create quieter, more productive environments.
  • Lightweight and easy to install, Safe'n'Sound applications include: basement walls and ceilings, media rooms, home offices, laundry rooms, furnace rooms and bedrooms
  • GreenGuard gold certified for indoor air quality
  • Click here to learn more about Eco Options and Energy Efficiency
  • Buying guide and insulation calculator:

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    Insulation calculator button

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From the Manufacturer

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Cover Area Per Bag (sq. ft.)
65 ft²
Coverage Area (sq. ft.)
780 ft²
Product Length (ft.)
4 ft
Product Thickness (in.)
3 in
Product Width (in.)
16.25 in


Bag Size
4 ft. x 16 in. x 24 in.
Batt/Roll Size
4 ft. x 3 in. x 16.25 in.
Compatible Install Surface
Existing Drywall
Faced or Unfaced
Insulation Features
Friction Fit,Soundproofing Insulation
Insulation Location
2x4 Wall,Ceiling Insulation
Insulation Type
Number of Pieces
Pack Size
Product Weight (lb.)
42.2 lb
Roll or Batt

Warranty / Certifications

Warranty Information

Questions & Answers

Typical questions asked about products:

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Customer Reviews

  • 4.8
    out of 431 reviews
  • 98%recommend this product
Filter by:
Showing 1-10 of 431 reviews
Awesome Product
I used this product to soundproof my theatre room and achieved amazing results! It is very quiet in the rest of the house with a loud movie playing.
    Great insulation
    I love working with Rockwool Safe and Sound insulation and have recently installed it in the floor that creates the ceiling of my basement. It's very easy to cut (using a sharp knife and/or scissors) and install, and, it is far less irratating than working with fibreglass wool. It offers superior fire resistance and the sound damping within the structure is excellent. This is very important if you want to isolate sound between rooms within your home (like when your kids like to listen to loud music in the basement LOL!). In one of my prior homes, I ripped out all the basement finish and fibreglass insulation on the exterior walls and replaced it with Rockwool insulation between the wood studs. The basement was more comfortable in both winter and summer after that.
      Safe and sound between new bedroom and great room
      We used the Rockwool Safe and Sound product to give us privacy from the sound of the tv/music from our new two storey great room. Although hidden behind the walls, it was well spent money in our new addition, for our future when our kids get older and continue the party while we sleep. Thanks Rockwool!
        Easy to cut and fit
        This is an excellent insulation product. I was insulating my garage and the end walls where the rafters are located is angled. I was looking for a product that was rigid enough to stay in place by press fitting it in between the 2 X 4's. I decided to try the Comfortboard 80 and it worked very well, I found it very easy to cut and fit into tight spaces.
        • Verified Purchase
        Warm and snug
        The quality is bang on. Layered this up on the foundation wall in the basement. And then mounted in place was strapping. Very satisfied with the ease of installation.
        • Verified Purchase
        • Recommended
        Versatile material
        I have a century home that’s double brick. Horizontal wood strips were embedded into the brick, with vertical slats attached for holding the lathe and plaster. I gutted all aspects of the old vertical slats, sealed any cracks/holes in the masonry, and added new 2X3s as vertical slats... 16” apart. I then had to determine what to stuff in between. At first I contemplated ridged foam, but I hate cutting it.Then I thought about slicing safensound bats like slicing a loaf of bread, but that seemed impractical. Finally, I found this product for basement walls, and decided to give it a try. Comffortboard 80 Cuts easy. Tight fitting. Conserves space. Will last a lifetime.
          • Recommended
          Easy to work with
          I chose safe and sound to insulate our son’s room that we were building. He gets loud when he games online with his friends and we needed sound proofing that was inexpensive and easy to install. I love the product. Very easy to work with which was great because I’m a novice at home renovation.
            • Recommended
            Great Purchase and Easy Install!
            Wow! I purchased 30 bags of the ROCKWOOL Safe 'n' Sound and was able to install it all by myself. I calculated that many bags on Rockwool's bag calculator on their website! Very accurate.. This product was very easy to install. Cutting around outlets, wires, and pipes was like cutting bread. Before the drywall went up, I could already tell a difference. I put the Safe 'n' Sound around all my laundry room, bathrooms, bedrooms, and in the basement ceiling. Not only does it provide sound proofing, it has other benefits as well. Such as fire resistant and no mildew can grow on it. I am so glad my builder let me install this product on my own. Would I recommend this product? Yes, 100%.
              • Recommended
              Exactly the product we wanted and needed!
              We are renovating a 110-year-old stone carriage house. Rockwool has been our salvation for many reasons: exceptional thermal efficiency, super sound blocking, and mice hate it! Easy to install. We wrapped our new enameled steel tub with Rockwool for added insulation; my love of hot baths appreciates the extra 30 minutes I can spend reading in my tub before bed! And best of all, it has a low carbon footprint. Everything to gain when we opted for Rockwool instead of the irritating pink fluff.
                • Recommended
                This product saved our house!
                We installed this in our basement ceiling 3 years ago. Our gas fireplace in the basement cought fire this weekend and the smoke and flames destroyed alot of it. The fire was so hot it had melted light fixtures and the fan off of the ceiling! We had double lined the ceiling with roxul when finishing the basement as our master bedroom is right over the gas fireplace and down stairs living room and we wanted maximum protection! Well unfortunately it was put to the test but it did exactly as it should! We had zero, that's right ZERO damage to the upstairs of our house above the fire! I can't say enough good things about this product! It saved our house and all who were in it! Thank you and I will never use any other insulation product in my home!
                  • Recommended
                  Showing 1-10 of 431 reviews