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Buy Knauf Earthwool Mineral Wool - Building, Flexi and Cavity Slabs

Standard Knauf Products popular sizes are generally available for delivery in the London area. However, we always recommend allowing four to five working days, and suggest that customers be prepared to accept the Rockwool equivalent as an alternative.

Knauf Earthwool Range of products for general Building Applications

Earthwool building and or flexi slab installed in a wooden stud partition wall application

These general purpose building slabs are often chosen for use in building applications that require the benefits of both acoustic and thermal insulation.

They are particularly effective in the studwork of separating / partition walls and floors, as well as above and between ceiling joists.

Stonewool slabs are  considerably cheaper than PIR, and Phenolic rigid wall boards. However, their thermal properties are considerably less effective than rigid boards

Availability: Short to extended lead-times may apply to these products, particularly those with less popular thickness's.
These slabs are sold in pack quantities, and these packs are sometimes only sold in pallet quantities.

Price List: Knauf Earthwool Building Slabs

A range multi-purpose insulation slabs that were developed to provide simple solutions to acoustically and thermally insulating roofs, walls and floors

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.

Knauf Earthwool RS45 45 kg/m³ Density

Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS45 25mm, 20 x 0.6x1.2m = 14.4m² - start at £25.44
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS45 30mm, 16 x 0.6x1.2m = 11.52m² - start at £26.32
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS45 40mm, 12 x 0.6x1.2m = 8.64m² - start at £26.40
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS45 50mm, 10 x 0.6x1.2m = 7.2m² - start at £25.44
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS45 60mm, 8 x 0.6x1.2m = 5.76m² - start at £26.70
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS45 75mm, 6 x 0.6x1.2m = 4.32m² - start at £22.96
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS45 100mm, 5 x 0.6x1.2m = 3.6m² - start at £25.30

Knauf Earthwool RS60 60 kg/m³ Density

Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS60 25mm, 18 x 0.6x1.2m = 12.96m² - start at £29.44
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS60 30mm, 14 x 0.6x1.2m = 10.08m² - start at £28.39
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS60 40mm, 12 x 0.6x1.2m = 8.64m² - start at £32.36
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS60 50mm, 9 x 0.6x1.2m = 6.48m² - start at £27.98
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS60 60mm, 7 x 0.6x1.2m = 5.04m² - start at £28.25
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS60 75mm, 6 x 0.6x1.2m = 4.32m² - start at £27.83
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS60 100mm, 4 x 0.6x1.2m = 2.88m² - start at £24.91

Knauf Earthwool RS100 100 kg/m³ Density

Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS100 25mm, 12 x 0.6x1.2m = 8.64m² - start at £41.54
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS100 30mm, 10 x 0.6x1.2m = 7.2m² - start at £41.79
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS100 40mm, 7 x 0.6x1.2m = 5.04m² - start at £39.30
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS100 50mm, 6 x 0.6x1.2m = 4.32m² - start at £42.12
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS100 60mm, 5 x 0.6x1.2m = 3.6m² - start at £42.03
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS100 75mm, 4 x 0.6x1.2m = 2.88m² - start at £42.04
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS100 100mm, 3 x 0.6x1.2m = 2.16m² - start at £41.86

Knauf Earthwool RS140 140 kg/m³ Density

Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS140 30mm, 7 x 0.6x1.2m = 5.04m² - start at £41.17
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS140 40mm, 5 x 0.6x1.2m = 3.6m² - start at £38.73
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS140 50mm, 4 x 0.6x1.2m = 2.88m² - start at £38.98
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS140 75mm, 3 x 0.6x1.2m = 2.16m² - start at £47.83
Non-stock item ordered only upon request. Knauf Earthwool® Building Slab RS140 100mm, 2 x 0.6x1.2m = 1.44m² - start at £38.79

Price List: Knauf Earthwool Flexi Slabs

The Celotex GA4000 Range is entirely suitable for a number of applications including roof, wall and floor systems. This multi-purpose rigid polyisocyanurate foam (PIR) thermal insulation board with reflective foil facings, are uniquely reinforced with glass-fibre and feature strong reaction-to-fire performance when measured in accordance with new European Standards.

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.

Non-stock item ordered only upon request. Knauf Earthwool® Flexible Slab 50mm, 12 x 0.6x1.2m = 8.64m² - start at £37.17
Non-stock item ordered only upon request. Knauf Earthwool® Flexible Slab 60mm, 10 x 0.6x1.2m = 7.2m² - start at £42.51
Non-stock item ordered only upon request. Knauf Earthwool® Flexible Slab 70mm, 8 x 0.6x1.2m = 5.76m² - start at £35.59
Non-stock item ordered only upon request. Knauf Earthwool® Flexible Slab 90mm, 6 x 0.6x1.2m = 4.32m² - start at £32.83
Non-stock item ordered only upon request. Knauf Earthwool® Flexible Slab 100mm, 6 x 0.6x1.2m = 4.32m² - start at £37.38
Non-stock item ordered only upon request. Knauf Earthwool® Flexible Slab 140mm, 3 x 0.6x1.2m = 2.16m² - start at £26.20


Knauf Dritherm glass mineral wool cavityBuilding Slabs

Knauf Dritherm Range of products for Cavity Wall Applications

These glass-wool cavity slabs are commonly used in insulating dry lining system to improve the thermal insulation of existing and new, solid or cavity masonry walls, or timber-frame walls.

Availability: Short to extended lead-times may apply to these products, particularly those with less popular thickness's.
These slabs are sold in pack quantities, and these packs are sometimes only sold in pallet quantities.

Price List: Knauf Dritherm Full Fill / Partial Fill Cavity Wall Slabs

Specifically targeted at partial fill cavity wall applications Celotex CG5000 is a premium performance PIR solution. CG5000 represents pioneering advancement within the PIR industry, uniquely offering superior performance in terms of combined thermal efficiency, sustainability and fire performance.

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.

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 32 Ultimate 75mm, 6 x 0.455x1.2m = 3.28m² - start at £38.55
Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 32 Ultimate 85mm, 5 x 0.455x1.2m = 2.73m² - start at £36.29
Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 32 Ultimate 100mm, 6 x 0.455x1.2m = 3.28m² - start at £50.32
Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 37 Standard 50mm, 12 x 0.455x1.2m = 6.55m² - start at £27.25
Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 37 Standard 65mm, 10 x 0.455x1.2m = 5.46m² - start at £26.22
Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 37 Standard 75mm, 8 x 0.455x1.2m = 4.37m² - start at £22.15
Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 37 Standard 85mm, 8 x 0.455x1.2m = 4.37m² - start at £25.07
Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 37 Standard 100mm, 12 x 0.455x1.2m = 6.55m² - start at £43.69
Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 37 Standard 125mm, 6 x 0.455x1.2m = 3.28m² - start at £27.45

Priced on Application:

Application specific insulation boards that have a limited market, or are generally only used in larger building projects

Availability: Extended lead-times commonly apply to these products, which often have to be manufactured to order. And require minimum manufacturing runs of 600m² or more


Contact Manufacturer

Knauf Insulation Limited

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

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