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Rockwool Mineral Wool Board 1" Thick 2' x 4' (10 Pack) 8 lb Density Soundproofing Fire Resistant Insulation Batts

Rockwool Mineral Wool Board 1" Thick 2' x 4' (10 Pack) 8 lb Density Soundproofing Fire Resistant Insulation Batts

Best price now

$135.00at AmazonObserved at 12:27 PM

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Our take on the Rockwool Mineral Wool Board 1" Thick 2' x 4' (10 Pack) 8 lb Density Soundproofing Fire Resistant Insulation Batts

Rockwool ProRox SL 960 is a 1-inch mineral wool board, 2 by 4 feet, sold in a 10-pack. At 8 lb per cubic foot it is denser than typical batt insulation, which helps with sound blocking, and it is rated to 1200°F and noncombustible. Ten boards cover 80 square feet. The best new price is $135 at Amazon as of November 7, 2026, and only one store lists it new, so there is little price history to compare against.

Best forSoundproofing walls, ceilings and shared floorsFire-rated assemblies and mechanical roomsHome studios and media roomsBuyers who want rigid boards instead of floppy batts
Pros
  • 8 pcf density gives better low-frequency sound blocking than light batts
  • Noncombustible mineral wool rated to 1200°F
  • Rigid 1-inch boards cut cleanly and hold shape in cavities
  • Handles moisture well, with water vapor sorption around 0.02%
  • 10-pack covers 80 square feet
Cons
  • 1-inch thickness adds little R-value, roughly R-4
  • Mineral wool fibers irritate skin and lungs, so gloves, long sleeves and a mask are needed
  • Heavier and pricier per square foot than fiberglass batts
  • Only one store lists it new, so price competition is limited
  • Boards can shed dust when cut and need sealing at edges

Rockwool Mineral Wool Board 1" Thick 2' x 4' (10 Pack) 8 lb Density Soundproofing Fire Resistant Insulation Batts prices at every store

  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $135.00Free shippingObserved at 12:27 PM
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Rockwool Mineral Wool Board 1" Thick 2' x 4' (10 Pack) 8 lb Density Soundproofing Fire Resistant Insulation Batts price history

Lowest price we've seen: $135.00 on Nov 7 at Amazon. Tracked across 1 store since Nov 7.

What reviewers say

Owners of Rockwool's dense mineral wool boards generally report good sound deadening and easy cutting, and they hold up in damp or hot spots. Complaints center on itch and dust during install and on the price.

What people mention
  • Sound blockingPraisedOwners say the dense boards cut voices and mid-range noise better than standard batts.
  • InstallationMixedBoards cut cleanly and stay in place, but installers report itching and dust.
  • Fire resistancePraisedBuyers value the noncombustible rating for garages, mechanical rooms and fire-rated walls.
  • PriceCriticisedReviewers note it costs more per square foot than fiberglass insulation.
  • MoisturePraisedMineral wool resists water and does not sag when damp.

Specifications

Insulation Thickness
1 inSource
Length
48 inSource
Width
24 inSource
Density
8 pcfSource
Material

Questions and answers

How much area does the 10-pack cover?
Each board is 2 by 4 feet, or 8 square feet. Ten boards cover 80 square feet.
What R-value does 1-inch Rockwool board add?
At about 0.039 W/mK, 1 inch adds roughly R-4. It is meant for sound control and fire resistance, not as a main thermal layer.
Can I use it in a ceiling or floor assembly?
Yes. The rigid boards fit between joists and are commonly used in ceilings and floors for impact and airborne noise.
Is it safe to handle without gear?
Wear gloves, long sleeves, eye protection and a mask. Mineral wool fibers irritate skin and airways, especially when cutting.
Is $135 a good price?
It works out to about $1.69 per square foot. With only one store listing it new as of November 7, 2026, compare against local building supply yards before buying.
Where is the Rockwool Mineral Wool Board 1" Thick 2' x 4' (10 Pack) 8 lb Density Soundproofing Fire Resistant Insulation Batts cheapest?
At Amazon, for $135.00, as of our latest check.

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All ROCKWOOL deals and products →
Mineral WoolSource
Temperature Rating
1200 deg FSource
Thermal Conductivity
0.039 to 0.2 W/mKSource
Water Vapor Sorption
0.02 %Source
Sub Brand
ProRox SL 960Source