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Knauf Earthwool Loft Roll 40 and Loft Roll 44

Overview: Loft Roll 40 & 44

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

Loft Roll 40 and Loft Roll 44 are flexible low density glass mineral wool quilts that are 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.

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.

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

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.


Product Price List and / or Add to Cart

Availability: Popular product readily available throughout the country.

Knauf Earthwool Loft Roll 40 & 44 - Glass Mineral Wool - Unfaced roll - Thermal conductivity =  0.040W/mK  & 0.044W/mK

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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

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 Loft Roll - Price and Availability Advisory

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Knauf Earthwool Loft Roll 40

Loft Roll 40 for pitched roofs at ceiling level and suspended timber floors

Thermal Performance: Loft Roll 40 has a thermal conductivity of 0.040W/mK

Fire Performance:  Loft Roll 40 is classified as Euroclass A1 to BS EN 13501-1.

Description:

Earthwool Loft Roll 40 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.

Benefits:

Lightweight and economic insulation quilt

Produced for use with timber joists at 400mm and 600mm centres

Partially cut perforations

Provides thermal, acoustic and fire performance

Application:

Earthwool Loft Roll 40 is primarily used for the thermal insulation of pitched roofs at ceiling level.

However, it can also be used to thermally insulate floors and partitions, or wherever a lightweight mineral wool quilt is required.

When used at ceiling level it is usually laid in two layers, with the first layer between the joists and the second layer over, and at right angles to the joists.

Environmental:

Loft Roll 40 represents no known threat to the environment and has zero Ozone Depletion Potential and zero Global Warming Potential.

Standards

Earthwool Loft Roll 40 is manufactured in accordance with BS EN 13162, EN 16001 Energy Management Systems, OHSAS 18001 Occupational Health and Safety Management Systems, ISO 14001 Environmental Management Systems, and ISO 9001 Quality Management Systems, as certified by Bureau Veritas.

Durability

Loft Roll 40 is odourless, rot proof, non-hygroscopic, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria.

Vapour resistivity

Loft Roll 40 offers negligible resistance to the passage of water vapour and has a vapour resistivity of 5.00MNs/g.m.

Handling and storage

Loft Roll 40 is easy to handle and install, being lightweight and easily cut to size, where necessary.

It is supplied in polythene packs which are designed for short term protection only.

For longer term protection on site, the product should be stored either indoors, or under cover and off the ground. Loft Roll 40 should not be left permanently exposed to the elements.

Technical Properties

Loft Roll 40 (Combi-cut)
Thickness (mm) Thermal Conductivity (W/mK) Thermal Resistance (m2K/W) Length (m) Width (mm) Area per Roll (m2)
200 0.040 5.0 4.85 1140/2x570/3x380 5.53
150 0.040 3.75 7.53 1140/2x570/3x380 8.58
100 0.040 2.50 11.25
1140/2x570/3x380 12.83

Knauf Loft Roll 44

Loft Roll 44 For pitched roofs at ceiling level and suspended timber floors

Thermal Performance: Loft Roll 44 has a thermal conductivity of 0.044W/mK

Fire Performance:  Loft Roll 44 is classified as Euroclass A1 to BS EN 13501-1.

Description:

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.

Benefits:

Lightweight and economic insulation quilt

Produced for use with timber joists at 400mm and 600mm centres

Partially cut perforations

Provides thermal, acoustic and fire performance

Application:

Loft Roll 44 is primarily used for the thermal insulation of pitched roofs at ceiling level, it can also be used to thermally insulate floors. When used at ceiling level it is usually laid in two layers, with the first layer between the joists and the second layer over, and at right angles to the joists.

Environmental:

Loft Roll 44 represents no known threat to the environment and has zero Ozone Depletion Potential and zero Global Warming Potential.

Standards

Loft Roll 44 is manufactured in accordance with BS EN 13162, EN 16001 Energy Management Systems, OHSAS 18001 Occupational Health and Safety Management Systems, ISO 14001 Environmental Management Systems, and ISO 9001 Quality Management Systems, as certified by Bureau Veritas.

Durability

Loft Roll 44 is odourless, rot proof, non-hygroscopic, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria.

Vapour resistivity

Loft Roll 44 offers negligible resistance to the passage of water vapour and has a vapour resistivity of 5.00MNs/g.m.

Handling and storage

Loft Roll 44 is easy to handle and install, being lightweight and easily cut to size, where necessary.

It is supplied in polythene packs which are designed for short term protection only.

For longer term protection on site, the product should be stored either indoors, or under cover and off the ground. Loft Roll 44 should not be left permanently exposed to the elements.

Technical Properties

Loft Roll 44 (Combi-cut)
Thickness (mm) Thermal Conductivity (W/mK) Thermal Resistance (m2K/W) Length (m) Width (mm) Area per Roll (m2)
200 0.044 4.5 5.2 1140/2x570/3x380 5.93
170 0.044 3.85 7.03 1140/2x570/3x380 8.01
150 0.044 3.4 8.05 1140/2x570/3x380 9.18
100 0.044 2.25 12.18 1140/2x570/3x380 13.89

Product Information and Certification

Links to manufacturer's information. Click to download in a separate browser window.

Earthwool Loft Roll 40 Datasheet | Earthwool Loft Roll 40 Datasheet


Priced on Application:

Generally, Products are readily available

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

Knauf Insulation Limited

Knauf Glass and Stone Mineral Wool Rolls and Slabs

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

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