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Buy Glass Mineral Wool - Loft Rolls, Rafter Rolls & Acoustic  Partition Rolls

Loft Rolls and Acoustic Partition Rolls are generally readily available. Rafter roll supplies can be challenging from time to time, with minimum order quantities requirements a possibility.

Loft Roll 44 & Loft Roll 40 - Potentially the best value Cold Roof insulation solution

Acoustic Partition Roll APR1200 plus Loft Roll 44, Loft Roll 40 and Rafter Roll 32

These products are designed for insulating at ceiling level between or above joists. They offer a thermal conductivity level of 0.044W/mK or 0.040W/mK respectively (lower is better) and are laid above ceilings to a depth of 270mm and 250mm respectively - offering a thermal resistance value of approximately 7.9m²K/W and 8.75m²K/W respectively (higher is better) with the aim of providing a 0.16 U-Value (the current required u-value for domestic properties choosing to install insulation at ceiling level.

Download Knauf BRE Complaint U-Value Calculations as per the above, Loft Roll 44 / Loft Roll 40

These ‘unfaced’ loft insulation products are manufactured with glass mineral wool are chemically neutral and do not contain impurities.

They are rot-proof, odourless, non-hygroscopic, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria.

Rafter Roll 32

Non-combustible glass mineral wool thermal and acoustic insulation, designed for insulating between the rafters of pitched roofs in new build and existing buildings.

Rafter roll is easy to cut and friction fit between rafters. It can be used either as a single or double layer between rafters, or as the first layer of a two layer system in combination with generic plasterboards or thermal laminate wallboards.

These rolls are strong, resilient and flexible insulating mats, which is easy to cut, handle and install.

Acoustic Partition Roll

Non-combustible glass mineral wool used for for sound insulation, semi-rigid acoustic rolls are ideal for speedy installation into internal walls, plasterboard partitions, internal floors and separating floors to effectively absorb and isolate airborn sound.

These rolls are strong, resilient and flexible insulating mats, which is easy to cut, handle and install and will not slump under their own weight when suspended vertically.


Isover Spacsaver Loft Roll (0.044W/mK)

Isover Spacesaver Loft Roll 43, and Isover Acoustic Partition Roll

Isover Spacesaver rolls are high quality thermal insulation mats in roll form, perforated along the roll to allow the user the choice of full, half or third width options from a single roll. These insulation rolls that are suitable for providing thermal insulation between and above ceiling joists in domestic-type pitched roofs.
Spacesaver provides widths of 386mm, 580mm and 1160mm from a single roll, due to its pre-cut perforations

Availability: These products are popular, and are commonly available at our depots.

Price List: Isover Spacesaver Loft Roll - Glass Mineral Wool - Unfaced roll - Thermal conductivity = 0.044W/mK

Fuller details of this product are available: Click Here.


1. Click items below for pricing structure. 2. Click Tick-Box to select one or more items. 3. Click Add to Cart Button.

Our Prices are currently being revised please contact us for the latest prices

Our Prices are currently being revised please contact us for the latest prices

Our Prices are currently being revised please contact us for the latest prices

Our Prices are currently being revised please contact us for the latest prices


Knauf Earthwool Loft Roll 44 (0.044W/mK)

Earthwool building, flexi and cavity slabs, plus loft, rafter and acoustic rolls

Earthwool Loft Roll 44 is a flexible low density glass mineral wool quilt which is lightweight, flexible, resilient and non-combustible. The rolls are 1140mm wide and partially perforated to produce either 2 rolls 570mm wide or 3 rolls 380mm wide.

Availability: These products are popular, and are commonly available at all of our depots.

Price List: Knauf Earthwool Loft Roll 44 - Glass Mineral Wool - Unfaced roll - Thermal conductivity = 0.044W/mK

Fuller details of this product are available: Click Here.


1. Click items below for pricing structure. 2. Click Tick-Box to select one or more items. 3. Click Add to Cart Button.

Common product, generally held by all depots Knauf Earthwool® Loft Roll 44 100mm, 1.14x12.18m = 13.89m² - start at £18.16
Common product, generally held by all depots Knauf Earthwool® Loft Roll 44 150mm, 1.14x8.05m = 9.18m² - start at £19.14
Common product, generally held by all depots Knauf Earthwool® Loft Roll 44 170mm, 1.14x7.03m = 8.01m² - start at £17.57
Common product, generally held by all depots Knauf Earthwool® Loft Roll 44 200mm, 1.14x5.2m = 5.93m² - start at £15.70


Knauf Earthwool Loft Roll 40 (0.040W/mK)

Earthwool building, flexi and cavity slabs, plus loft, rafter and acoustic rolls

Earthwool Loft Roll 40 is a flexible glass mineral wool quilt which is lightweight, flexible, resilient and non-combustible. The rolls are 1140mm wide and are either partially perforated or fully cut to produce either 2 rolls 570mm wide or 3 rolls 380mm wide

Availability: These products are popular, and are commonly available at all of our depots.

Price List: Knauf Earthwool Loft Roll 40 - Glass Mineral Wool - Unfaced roll - Thermal conductivity = 0.044W/mK

Fuller details of this product are available: Click Here.


1. Click items below for pricing structure. 2. Click Tick-Box to select one or more items. 3. Click Add to Cart Button.

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Loft Roll 40 100mm, 24 x 1.14x11.25m = 307.8m² - start at £787.85
Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Loft Roll 40 150mm, 24 x 1.14x7.53m = 206.02m² - start at £774.31
Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Loft Roll 40 200mm, 24 x 1.14x4.85m = 132.7m² - start at £692.22


Knauf Earthwool Rafter Roll 32 (0.032W/mK)

Earthwool building, flexi and cavity slabs, plus loft, rafter and acoustic rolls

Rafter Roll 32 is for insulating between the rafters of pitched roofs of both new build and existing buildings. It is easy to cut and friction fit between rafters

Knauf Rafter Roll 32 can be used either as a single or double layer between rafters, or as the first layer of a two layer system in combination with traditional insulation and/or multi-foil products. The rolls are 12m wide and vay in length relative to the procuct thickness

Availability: These products, although popular, come on pallets of 24 rolls and commonly require a lead-time in excess of five working days.

Price List: Knauf Earthwool Rafter Roll 32 - Glass Mineral Wool - Unfaced roll - Thermal conductivity = 0.032W/mK

Fuller details of this product are available: Click Here.


1. Click items below for pricing structure. 2. Click Tick-Box to select one or more items. 3. Click Add to Cart Button.

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Rafter Roll 32 50mm, 24 x 1.2x7.9m = 227.52m² - start at £1,078.72
Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Rafter Roll 32 75mm, 24 x 1.2x5.25m = 151.2m² - start at £1,025.50
Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Rafter Roll 32 85mm, 24 x 1.2x4.6m = 132.48m² - start at £1,025.88
Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Rafter Roll 32 100mm, 24 x 1.2x4m = 115.2m² - start at £1,009.02


Isover Acoustic Partition Roll 1200

Isover Spacesaver Loft Roll 43, and Isover Acoustic Partition Roll

Isover Spacesaver rolls are high quality thermal insulation mats in roll form, perforated along the roll to allow the user the choice of full, half or third width options from a single roll. These insulation rolls that are suitable for providing thermal insulation between and above ceiling joists in domestic-type pitched roofs.
Spacesaver provides widths of 386mm, 580mm and 1160mm from a single roll, due to its pre-cut perforations

Availability: These products are popular, and are commonly available at our depots.

Price List: Isover Acoustic Roll APR 1200 - Glass Mineral Wool - Unfaced roll - 40 Rw dB sound reduction

Fuller details of this product are available: Click Here.


1. Click items below for pricing structure. 2. Click Tick-Box to select one or more items. 3. Click Add to Cart Button.

Our Prices are currently being revised please contact us for the latest prices


Knauf Earthwool Acoustic Roll

Earthwool building, flexi and cavity slabs, plus loft, rafter and acoustic rolls

Acoustic Partition Roll is a flexible, resilient, unfaced roll of glass mineral wool. It is supplied in dimensions to suit metal and timber stud partitions at standard 600mm centres. Using mineral wool as a sound absorbent layer in partitions will significantly improve their acoustic performance, whilst only adding minimally to the overall mass of the structure. The mineral wool complements the plasterboard by absorbing airborne sound in the cavity and reducing reverberation. It also has the effect of reducing the hollow sound that can occur in partitions with unfilled cavities.

Availability: These products are popular, and are commonly available at our depots.

Price List: Knauf Acoustic Roll - Glass Mineral Wool - Unfaced roll - 40 Rw dB sound reduction

Fuller details of this product are available: Click Here.


1. Click items below for pricing structure. 2. Click Tick-Box to select one or more items. 3. Click Add to Cart Button.

Common product, generally held by all depots Knauf Earthwool® Acoustic Roll (4 x 600mm) 25mm, 2.4x10m = 24m² - start at £27.22
Common product, generally held by all depots Knauf Earthwool® Acoustic Roll (2 x 600mm) 50mm, 1.2x13m = 15.6m² - start at £27.47
Common product, generally held by all depots Knauf Earthwool® Acoustic Roll (2 x 600mm) 75mm, 1.2x12.5m = 15m² - start at £35.64
Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Acoustic Roll (3 x 400mm) 100mm, 24 x 1.2x9.17m = 264.1m² - start at £815.76
Common product, generally held by all depots Knauf Earthwool® Acoustic Roll (2 x 600mm) 100mm, 1.2x9.17m = 11m² - start at £33.74


Product availability indicators

Price and Availability Advisory: Mineral Wool Rolls

Presently there are no availability restrictions, apart from manufacturing lead-times and minimum quantity order levels on certain product sizes. Observe the 'Star Rating' indicators to assess availability.

Excellent = Product Availability Excellent Good = Product Availability Good Fair = Product Availability Fair Poor =  Product Availability Poor Undetermined = Product Availability Undetermined
Availability relies on stock levels at closest depots and upon transport logistics to effect deliveries


Priced on Application:

Estimates for large quantity orders can be priced on application. Please contact us to discuss such matters.

Contact us directly for further information: Telephone 0333 8000 828  - Email: Click Here:



Contact Manufacturer

Isover Spacesaver Loft Roll 43, and Isover Acoustic Partition Roll

Saint-Gobain Isover

Gotham Road, East Leake, Loughborough, Leicestershire, LE12 6HX

Structural insulation - Technical enquiries

Telephone: +44 (0) 115 945 1143
Email: isover.enquiries@saint-gobain.com
Web sites: Isover Home Page


Knauf Thermal Laminate Wallboards and insulated Plasterboards

Knauf Insulation Limited

PO Box 10, Stafford Road, St Helens, Merseyside, WA10 3NS

Knauf Technical Advisory Service

Telephone: +44 (0) 1744 766666 - Fax: +44 (0) 1744 766667
Email: technical.uk@knaufinsulation.com
Web sites: Knauf Home Page / Knauf Insulation Solutions iPad App.

Contact us

Insulation Online Limited

27 Massetts Road, Horley, Surrey, RH6 7DQ, UK

Telephone: 0333 8000 828

Facsimile: 0333 7000 797

Email: enquiries@insulation-online.com

Web site: www.insulation-online.com

insulation-online.com - we always deliver top quality products, competitive pricing and an efficient caring service