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Rockwool Insulation Comparison - April 2026

4 Best Rockwool Insulation In the UK

1
Best Choice
9.7Exceptional
2
9.5Excellent
3
9.4Excellent
4
9.3Excellent
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Model

EARTHWOOL 3 x Insulation Loft Rolls Knauf 200mm Thickness, 6.84m2 Per Roll Combi Cut 20.52m2 Area Covered Deliveries to Mainland UK ONLY
Model
EARTHWOOL 3 x Insulation Loft Rolls Knauf 200mm Thickness, 6.84m2 Per Roll Combi Cut 20.52m2 Area Covered Deliveries to Mainland UK ONLY
Model
Rockwool RWA45 Acoustic Insulation Slab 1200mm x 600 x 50 Millimetre 9 Pieces Per Pack. 6.48 Square Meters
Model
Rockwool RWA45 Acoustic Insulation Slab 1200mm x 600 x 50 Millimetre 9 Pieces Per Pack. 6.48 Square Meters

Brand

Earthwool
Brand
Earthwool
Brand
Rockwool
Brand
Rockwool

Reviews

92 reviews
Reviews
92 reviews
Reviews
444 reviews
Reviews
444 reviews

Tech Specs

material

Wool
material
Wool
material
-
material
-

Available On

Available On
Available On
Available On

Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.7
    1
    EARTHWOOL 3 x Insulation Loft Rolls Knauf 200mm Thickness, 6.84m2 Per Roll Combi Cut 20.52m2 Area Covered Deliveries to Mainland UK ONLY
    Earthwool

    EARTHWOOL 3 x Insulation Loft Rolls Knauf 200mm Thickness, 6.84m2 Per Roll Combi Cut 20.52m2 Area Covered Deliveries to Mainland UK ONLY

    Why we love it

    Lightweight and easy to handle.
    Provides excellent thermal performance.
    Flexible installation options.
    Main highlights
    • Provides excellent thermal performance.
    • Partially cut perforations giving flexibility.
    • PLEASE NOTE: THIS IS A KERBSIDE DELIVERY ONLY, THE DRIVER IS NOT INSURED TO TAKE THE ITEM AROUND THE BACK OF YOUR PROPERTY OR INSIDE YOUR PROPERTY! MAINLAND UK DELIVERIES ONLY! CANNOT SHIP TO BT AND IM / IV & KA POSTCODES!
    • For use as a top up layer or between ceiling joists. Lightweight and economical insulation quilt.
    • 3 x New Knauf Earthwool 44 Loft roll 200mm in 6.84m2 per Pack Total is 20.52m2
  • 9.5
    2
    EARTHWOOL 3 x Insulation Loft Rolls Knauf 200mm Thickness, 6.84m2 Per Roll Combi Cut 20.52m2 Area Covered Deliveries to Mainland UK ONLY
    Earthwool

    EARTHWOOL 3 x Insulation Loft Rolls Knauf 200mm Thickness, 6.84m2 Per Roll Combi Cut 20.52m2 Area Covered Deliveries to Mainland UK ONLY

    Why we love it

    Lightweight and easy to handle.
    Provides excellent thermal performance.
    Flexible installation options.
    Main highlights
    • Provides excellent thermal performance.
    • Partially cut perforations giving flexibility.
    • PLEASE NOTE: THIS IS A KERBSIDE DELIVERY ONLY, THE DRIVER IS NOT INSURED TO TAKE THE ITEM AROUND THE BACK OF YOUR PROPERTY OR INSIDE YOUR PROPERTY! MAINLAND UK DELIVERIES ONLY! CANNOT SHIP TO BT AND IM / IV & KA POSTCODES!
    • For use as a top up layer or between ceiling joists. Lightweight and economical insulation quilt.
    • 3 x New Knauf Earthwool 44 Loft roll 200mm in 6.84m2 per Pack Total is 20.52m2
  • 9.4
    3
    Rockwool

    Rockwool RWA45 Acoustic Insulation Slab 1200mm x 600 x 50 Millimetre 9 Pieces Per Pack. 6.48 Square Meters

    Why we love it

    Excellent thermal, acoustic and fire insulation
    A1 Euroclass fire rating
    Water repellent
    Main highlights
    • Water repellent
    • Rockwool RWA45 Insulation slabs have an A1 Euroclass fire rating
    • Excellent thermal, acoustic and fire Insulation

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Value for money

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When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.