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Rockwool Safe'n'Sound Mineral Wool Insulation

Rockwool Safe'n'Sound Mineral Wool Insulation

4.6(1,400 ratings)

Best price now

$83.98at Home DepotObserved at 1:43 PM

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Our take on the Rockwool Safe'n'Sound Mineral Wool Insulation

Rockwool Safe'n'Sound is stone wool batt insulation sold in 3-inch-thick, 16-inch-wide, 48-inch-long pieces covering 65 square feet. It is made for sound control in interior walls and ceilings, and it also resists fire, moisture and mold. The batts are unfaced and cut with a serrated knife, then friction-fit between studs. At $83.98 at Home Depot as of November 7, 2026, it sits at the low end of its recent price range.

Best forInterior walls between bedrooms or bathroomsHomeowners finishing a basement or media roomSound control around plumbing and electrical chasesDIYers who want to cut batts by hand
Pros
  • Dense stone wool damps sound better than standard fiberglass batts
  • Non-combustible and rated to 2150°F
  • Does not promote mold or mildew and resists water
  • Friction fit holds batts in place without fasteners
  • Cuts cleanly with a serrated knife
Cons
  • Heavier and denser than fiberglass, so overhead work is tiring
  • Mineral wool fibers irritate skin and lungs without gloves, sleeves and a mask
  • 3-inch thickness suits interior partitions, not deep exterior wall cavities
  • Costs more per square foot than basic fiberglass

Rockwool Safe'n'Sound Mineral Wool Insulation prices at every store

  • Home DepotNew

    In stock

    $83.98Observed at 1:43 PM
    Visit Home Depot
  • Lowe'sNew

    In stock

    $83.98Free shippingObserved at 1:43 PM
    Visit Lowe's

Also available at

  • Hamshawlumber.comCheck price at Hamshawlumber.com
  • Years Building MaterialsCheck price at Years Building Materials

Store links may earn us a commission. Some prices via Klarna.

Rockwool Safe'n'Sound Mineral Wool Insulation price history

Lowest price we've seen: $65.00 on Nov 7 at Years Building Materials. Tracked across 4 stores since Nov 7.

What reviewers say

  • 4.6 / 51,400 ratings

Owners rate it highly, mostly for how much it quiets rooms and how easy the batts are to cut and fit. Complaints center on itchiness during installation and the higher price than fiberglass.

What people mention
  • Sound dampeningPraisedOwners say it noticeably cuts noise through shared walls and ceilings.
  • InstallationMixedBatts cut easily and friction-fit, but handling them overhead is tiring.
  • Skin irritationCriticisedInstallers report itching and throat irritation without gloves and a mask.
  • Moisture and moldPraisedBuyers value that it resists water and does not feed mold in damp spaces.
  • PriceCriticisedSome say it costs more per square foot than fiberglass alternatives.

Specifications

Product Type
Soundproofing insulation
Material Type
Insulation, Soundproofing insulation
Material Composition
Stone wool, Mineral Wool
Thickness
3 in
Length
48"
Width
16 in
Area
65 sqft

Questions and answers

Is Safe'n'Sound good for soundproofing a wall?
Yes. Its dense stone wool absorbs sound better than standard fiberglass batts. It reduces noise through interior walls, though it will not block sound completely on its own.
What size are the batts?
Each batt is 3 inches thick, 16 inches wide and 48 inches long. A pack covers 65 square feet, enough for about four standard stud bays.
How do I cut it?
Use a serrated knife or insulation saw to cut batts to length. Press them into the stud bay; friction holds them without staples.
Can it be used in bathrooms or basements?
Yes. It resists water and does not promote mold or mildew, which suits damp interior walls. Keep it indoors and cover it with drywall as usual.
Is it fire resistant?
Yes. It is non-combustible stone wool rated to 2150°F, so it adds no fuel to a wall assembly.
Is $83.98 a good price?
That is the best new price found, at Home Depot as of November 7, 2026. It sits at the low end of its recent range, so it is a fair time to buy.
Where is the Rockwool Safe'n'Sound Mineral Wool Insulation cheapest?
At Home Depot, for $83.98, as of our latest check.
What do buyers say about the Rockwool Safe'n'Sound Mineral Wool Insulation?
Rated 4.6 out of 5 from 1,400 ratings.
Where can I buy the Rockwool Safe'n'Sound Mineral Wool Insulation?
4 stores we checked sell it, including Home Depot, Lowe's, Hamshawlumber.com, Years Building Materials.

Stores we've priced the Rockwool Safe'n'Sound Mineral Wool Insulation at

  • Home Depot deals and prices
  • Lowe's deals and prices

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Form Factor
Batt
Intended Use
Walls, Ceilings
Surface
Wood
Fire Resistance
Non-combustible
Mold Resistance
Does not promote the growth of mildew, fungi or mold
Water Resistance
Water resistant
Installation Method
Friction fit
Installation Tools
Serrated knife (for cutting)
Finish
Unfaced
Flammability Rating
Non-combustible
Moisture Resistance
Yes
Temperature Resistance
Up to 2150°F (1177°C)
Environment
Indoor
Ideal Locations
Around plumbing, Around doors, Around electrical
Typical Users
Homeowners