StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
Deal.ai › ROCKWOOL
ROCKWOOL
RockWool R22 Comfortbatt Insulation

RockWool R22 Comfortbatt Insulation

Best price now

$78.53at Crown Building SuppliesChecked 20 h ago

Prices are checked against each store and labelled with when.

Visit Crown Building Supplies

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $78.53 at Crown Building Supplies on Nov 14.

Our take on the RockWool R22 Comfortbatt Insulation

ROCKWOOL R22 Comfortbatt is semi-rigid stone wool batt insulation for wood and steel framing in walls, attics, ceilings and floors. Its flexible edges compress into the cavity and expand to fill it, reaching the rated R22. Stone wool is non-combustible, resists moisture and absorbs sound, which sets it apart from fiberglass batts that need more careful handling and can sag or hold water. It suits homeowners and contractors insulating 2x6 framed assemblies who want fire and moisture resistance along with thermal performance.

Best for2x6 wall and floor cavitiesAttics and ceilingsSound control between roomsBuyers wanting fire- and moisture-resistant insulation
Pros
  • Semi-rigid batts hold their shape in the cavity
  • Flexible edges fill gaps around framing
  • Non-combustible stone wool
  • Resists water and moisture
  • Absorbs sound better than fiberglass
  • Cuts easily with a utility knife
Cons
  • R22 needs a deeper cavity than R13 or R15 batts
  • Stone wool fibers irritate skin and lungs without gear
  • Heavier and denser than fiberglass batts
  • Sold only around Edmonton and Calgary

RockWool R22 Comfortbatt Insulation prices at every store

  • Crown Building SuppliesNew

    In stockShips from Canada · priced in CAD (CA$111.97) · duties may applyReturn policy

    $78.53Checked 20 h ago
    Visit Crown Building Supplies

About the RockWool R22 Comfortbatt Insulation

ROCKWOOL Comfortbatt is a semi-rigid stone wool insulation with an R22 rating. It provides thermal resistance in both steel and wood framing.

The batt has flexible edges that compress as it is installed into wall, attic, ceiling and floor frames. The edges then expand to fully fill the space and achieve the specified R-value.

It is easy to cut and absorbs sound. It is non-combustible and resistant to water and moisture.

Material
Stone wool
R-value
R22
Type
Semi-rigid batt
Framing
Steel and wood
Installation areas
Walls, attics, ceilings, floors
Fire resistance
Non-combustible
Moisture
Resistant to water and moisture
Acoustics
Sound-absorbing

Questions and answers

What does R22 mean for my walls?
R22 is the thermal resistance rating of the batt. It fits 2x6 framing, where a 5.5-inch cavity leaves room for the batt to compress at the edges and expand to fill the space.
How is it different from fiberglass batts?
Stone wool is denser, non-combustible and resists moisture, and it damps sound better. Fiberglass is lighter and usually less expensive, but it can sag and hold water if it gets wet.
Can I use it in a ceiling or attic?
Yes. ROCKWOOL lists it for walls, attics, ceilings and floors in both wood and steel framing.
How do I cut it?
It cuts easily with a sharp utility knife. Compress the batt slightly, cut through, and let it expand back into the cavity.
Do I need protective gear?
Yes. Wear gloves, long sleeves and eye protection, and use a dust mask when cutting, since stone wool fibers can irritate skin and airways.
Is it fire rated?
The stone wool is non-combustible, which is one of its main advantages over foam and some other batt products.
Where is the RockWool R22 Comfortbatt Insulation cheapest?
At Crown Building Supplies, for $78.53, as of our latest check.

More from ROCKWOOL

  • R
    ROCKWOOL RXCB351525A COMFORT BATT R13 3.5 in. X 15-1/4 in. X 47 in. (59.73 SQFT)
    ROCKWOOL RXCB351525A COMFORT BATT R13 3.5 in. X 15-1/4 in. X 47 in. (59.73 SQFT)
  • R
    R-16 Rockwool 3 in. x 15-1/4 in. x 47 in. (59.7 sq. ft.) Soundproofing Stone Wool Insulation Batt
    R-16 Rockwool 3 in. x 15-1/4 in. x 47 in. (59.7 sq. ft.) Soundproofing Stone Wool Insulation Batt
  • R
    Rockwool Comfortbatt R-23 24 In. x 47 In. Stone Wool Insulation (5-Pack)
    Rockwool Comfortbatt R-23 24 In. x 47 In. Stone Wool Insulation (5-Pack)
  • R
    Rockwool Unfaced CurtainRock 40
    Rockwool Unfaced CurtainRock 40
  • R
    R-13 Rockwool 3-1/2 in. x 15-1/4 in. x 47 in. (59.7 sq. ft.) Comfort Stone Wool Insulation Batt
    R-13 Rockwool 3-1/2 in. x 15-1/4 in. x 47 in. (59.7 sq. ft.) Comfort Stone Wool Insulation Batt
  • R
    Rockwool Comfortbatt R-15 24 In. x 47 In. Stone Wool Insulation (8-Pack)
    Rockwool Comfortbatt R-15 24 In. x 47 In. Stone Wool Insulation (8-Pack)
  • R
    Rockwool Comfortbatt R-30 16 In. x 47 In. Stone Wool Insulation (6-Pack)
    Rockwool Comfortbatt R-30 16 In. x 47 In. Stone Wool Insulation (6-Pack)
  • R
    Rockwool Mineral Wool CavityRock 16" x 48"
    Rockwool Mineral Wool CavityRock 16" x 48"
  • All ROCKWOOL deals and products →

    More stone wool insulation batts

    • R
      Rockwool RXSS31525 Stone Wool Acoustic Insulation Batts
      Rockwool RXSS31525 Stone Wool Acoustic Insulation Batts
    • R
      Rockwool Comfortbatt R-15 16 In. x 47 In. Stone Wool Insulation (12-Pack)
      Rockwool Comfortbatt R-15 16 In. x 47 In. Stone Wool Insulation (12-Pack)
    • R
      Rockwool Unfaced CurtainRock 80 - All Sizes
      Rockwool Unfaced CurtainRock 80 - All Sizes
    • R
      ROCKWOOL Safe'n'Sound Stone Wool Insulation
      ROCKWOOL Safe'n'Sound Stone Wool Insulation
    • R
      RXCB3523 R15 24x47 Bat Insulation
      RXCB3523 R15 24x47 Bat Insulation
    • R
      Rockwool ComfortBatt 15.25 in. W X 47 in. L X 3.5 in. R15 Unfaced Insulation Batt 59.7 sq ft RXCB351525
      Rockwool ComfortBatt 15.25 in. W X 47 in. L X 3.5 in. R15 Unfaced Insulation Batt 59.7 sq ft RXCB351525
    • R
      Rockwool AFB (Acoustic Fire Batt) 16 in x 48 in
      Rockwool AFB (Acoustic Fire Batt) 16 in x 48 in
    • R
      ROCKWOOL Safe’n’Sound
      ROCKWOOL Safe’n’Sound