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Order before 10am for next working day delivery.  Subject to product availability locally, and vehicle delivery slots

Buy Mineral Wool Building and Cavity Slabs, plus Fire Barrier System

Rockwool stone mineral wool slabs are commonly available from the majority of our depots for delivery within one or two working days. Rockwool slabs come in thicknesses of - 25mm, 30mm 40mm, 50mm, 60mm, 75mm, and 100mm, in the following densities - Flexi = 33 kg/m³  | RWA45 = 45 kg/m³ | RW3 = 60 kg/m³ | RW5 = 100 kg/m³ | RW6 = 140 kg/m³.

Knauf Earthwool slabs are generally available in and around London. Outside of London supplies can be challenging, with minimum order quantities requirements a possibility. Available in the following thicknesses thicknesses, 25mm, 30mm 40mm, 50mm, 60mm, 75mm, and 100mm, and densities, RS33 = 33 kg/m³ | RS45 = 45 kg/m³ | RS60 = 60 kg/m³ | RS100 = 100 kg/m³ | RS140 = 140 kg/m³.


Building Slabs and Flexi Slabs

Rockwool Full-Fill Cavity Insulation Slabs fitted to exterior wall

Mineral wool slabs can be used in a wide range of thermal and acoustic insulation applications, in roofs, ceilings, loft conversions, walls and floors. The standard products are supplied un-faced, but they can be manufactured with a factory applied foil or tissue facing.

Rockwool insulation slabs are high quality resin bonded water repellent batts that can be used for thermal, acoustic and fire insulation. Rockwool slabs are used in applications where effective acoustic and thermal insulation is essential, such as in walls, partitions, floors and roofs, and can be fitted between timber and metal stud frames.

Earthwool slabs are similar to those manufactured by Rockwool, but with the added advantage of eco-friendly ECOSE technology which benefits from a natural, formaldehyde-free, binder made from rapidly renewable organic materials instead of petroleum-based chemicals. Earthwool (formerly Rocksilk) slabs, manufactured by Knauf, are unfaced, rock mineral wool batts, that can be used in a wide range of thermal and acoustic insulation applications. These slabs are available from us in densities from 33 kg/m³ to 140 kg/m³

Flexible Slabs are multi-purpose thermal and acoustic insulation slabs specifically designed for installation by friction fitting due to a flexible edge that compresses during fitting.


Rockwool Mineral Wool Building Slabs

Rockwool Stone Mineral Wool Building, Flexi and Cavity Slab. Also Fire Barrier System

These slabs are particularly suitable for acoustic infills in partitions and ceilings, providing a high level of control of both airborne and structure-borne sound. They are also suitable for acoustic absorption in the linings of buildings.

Mineral slabs of a density of 45 kg/m³ have now become the de-facto standard for normal domestic insulation purposes. Densities above this level are particularly good for use in sound studios and commercial and industrial areas where, for example, machine noise is prevalent.

Availability: These products are popular, and are available at many of our depots. However, we suggest allowing a 3 - 4 day lead-time.

Drop-down price list / Add to shopping basket

Click to Buy: Rockwool Building Slabs  - Unfaced Slabs - Thermal conductivity = 0.035W/mK

Additional information on this product is provided at: Click Here.

Procedure: Select products below to see pricing structure | Use product tick-boxes to select required products | Add to Basket

Rarely requested product sourced directly from manufacturer. Rockwool Building Slab RWA45 25mm, 16 x 0.6x1.2m = 11.52m² - ranging from £1.11 to £1.16 per m²

1 plus packs @ £1.16 per m² / £0.84 per slab = £13.39 (£16.07 inc-VAT) per pack
6 plus packs @ £1.15 per m² / £0.83 per slab = £13.27 (£15.92 inc-VAT) per pack
12 plus packs @ £1.14 per m² / £0.82 per slab = £13.15 (£15.78 inc-VAT) per pack
18 plus packs @ £1.13 per m² / £0.82 per slab = £13.04 (£15.65 inc-VAT) per pack
24 plus packs @ £1.12 per m² / £0.81 per slab = £12.92 (£15.50 inc-VAT) per pack
30 plus packs @ £1.11 per m² / £0.80 per slab = £12.80 (£15.36 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool Building Slab RWA45 30mm, 12 x 0.6x1.2m = 8.64m² - ranging from £1.43 to £1.50 per m²

1 plus packs @ £1.50 per m² / £1.08 per slab = £12.92 (£15.50 inc-VAT) per pack
8 plus packs @ £1.48 per m² / £1.07 per slab = £12.81 (£15.37 inc-VAT) per pack
16 plus packs @ £1.47 per m² / £1.06 per slab = £12.70 (£15.24 inc-VAT) per pack
24 plus packs @ £1.46 per m² / £1.05 per slab = £12.58 (£15.10 inc-VAT) per pack
32 plus packs @ £1.44 per m² / £1.04 per slab = £12.47 (£14.96 inc-VAT) per pack
40 plus packs @ £1.43 per m² / £1.03 per slab = £12.36 (£14.83 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool Building Slab RWA45 40mm, 12 x 0.6x1.2m = 8.64m² - ranging from £1.89 to £1.98 per m²

1 plus packs @ £1.98 per m² / £1.42 per slab = £17.09 (£20.51 inc-VAT) per pack
8 plus packs @ £1.96 per m² / £1.41 per slab = £16.95 (£20.34 inc-VAT) per pack
16 plus packs @ £1.94 per m² / £1.40 per slab = £16.80 (£20.16 inc-VAT) per pack
24 plus packs @ £1.93 per m² / £1.39 per slab = £16.65 (£19.98 inc-VAT) per pack
32 plus packs @ £1.91 per m² / £1.38 per slab = £16.50 (£19.80 inc-VAT) per pack
40 plus packs @ £1.89 per m² / £1.36 per slab = £16.35 (£19.62 inc-VAT) per pack

Common product, generally held by all depots Rockwool Building Slab RWA45 50mm, 9 x 0.6x1.2m = 6.48m² - ranging from £2.31 to £2.42 per m²

1 plus packs @ £2.42 per m² / £1.74 per slab = £15.65 (£18.78 inc-VAT) per pack
8 plus packs @ £2.40 per m² / £1.72 per slab = £15.52 (£18.62 inc-VAT) per pack
16 plus packs @ £2.37 per m² / £1.71 per slab = £15.38 (£18.46 inc-VAT) per pack
24 plus packs @ £2.35 per m² / £1.69 per slab = £15.25 (£18.30 inc-VAT) per pack
32 plus packs @ £2.33 per m² / £1.68 per slab = £15.11 (£18.13 inc-VAT) per pack
40 plus packs @ £2.31 per m² / £1.66 per slab = £14.97 (£17.96 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool Building Slab RWA45 60mm, 8 x 0.6x1.2m = 5.76m² - ranging from £2.87 to £3.00 per m²

1 plus packs @ £3.00 per m² / £2.16 per slab = £17.29 (£20.75 inc-VAT) per pack
8 plus packs @ £2.98 per m² / £2.14 per slab = £17.14 (£20.57 inc-VAT) per pack
16 plus packs @ £2.95 per m² / £2.12 per slab = £16.99 (£20.39 inc-VAT) per pack
24 plus packs @ £2.92 per m² / £2.11 per slab = £16.84 (£20.21 inc-VAT) per pack
32 plus packs @ £2.90 per m² / £2.09 per slab = £16.69 (£20.03 inc-VAT) per pack
40 plus packs @ £2.87 per m² / £2.07 per slab = £16.54 (£19.85 inc-VAT) per pack

Common product, generally held by all depots Rockwool Building Slab RWA45 75mm, 6 x 0.6x1.2m = 4.32m² - ranging from £3.47 to £3.62 per m²

1 plus packs @ £3.62 per m² / £2.61 per slab = £15.65 (£18.78 inc-VAT) per pack
10 plus packs @ £3.59 per m² / £2.59 per slab = £15.52 (£18.62 inc-VAT) per pack
20 plus packs @ £3.56 per m² / £2.56 per slab = £15.38 (£18.46 inc-VAT) per pack
30 plus packs @ £3.53 per m² / £2.54 per slab = £15.25 (£18.30 inc-VAT) per pack
40 plus packs @ £3.50 per m² / £2.52 per slab = £15.11 (£18.13 inc-VAT) per pack
50 plus packs @ £3.47 per m² / £2.50 per slab = £14.97 (£17.96 inc-VAT) per pack

Common product, generally held by all depots Rockwool Building Slab RWA45 100mm, 4 x 0.6x1.2m = 2.88m² - ranging from £4.58 to £4.78 per m²

1 plus packs @ £4.78 per m² / £3.45 per slab = £13.78 (£16.54 inc-VAT) per pack
10 plus packs @ £4.74 per m² / £3.42 per slab = £13.66 (£16.39 inc-VAT) per pack
20 plus packs @ £4.70 per m² / £3.39 per slab = £13.54 (£16.25 inc-VAT) per pack
30 plus packs @ £4.66 per m² / £3.36 per slab = £13.42 (£16.10 inc-VAT) per pack
40 plus packs @ £4.62 per m² / £3.33 per slab = £13.30 (£15.96 inc-VAT) per pack
50 plus packs @ £4.58 per m² / £3.30 per slab = £13.18 (£15.82 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool Building Slab RW3 25mm, 16 x 0.6x1.2m = 11.52m² - ranging from £1.68 to £1.76 per m²

1 plus packs @ £1.76 per m² / £1.27 per slab = £20.27 (£24.32 inc-VAT) per pack
6 plus packs @ £1.74 per m² / £1.26 per slab = £20.10 (£24.12 inc-VAT) per pack
12 plus packs @ £1.73 per m² / £1.25 per slab = £19.92 (£23.90 inc-VAT) per pack
18 plus packs @ £1.71 per m² / £1.23 per slab = £19.75 (£23.70 inc-VAT) per pack
24 plus packs @ £1.70 per m² / £1.22 per slab = £19.57 (£23.48 inc-VAT) per pack
30 plus packs @ £1.68 per m² / £1.21 per slab = £19.39 (£23.27 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool Building Slab RW3 30mm, 15 x 0.6x1.2m = 10.8m² - ranging from £1.89 to £1.98 per m²

1 plus packs @ £1.98 per m² / £1.42 per slab = £21.37 (£25.64 inc-VAT) per pack
6 plus packs @ £1.96 per m² / £1.41 per slab = £21.18 (£25.42 inc-VAT) per pack
12 plus packs @ £1.94 per m² / £1.40 per slab = £21.00 (£25.20 inc-VAT) per pack
18 plus packs @ £1.93 per m² / £1.39 per slab = £20.81 (£24.97 inc-VAT) per pack
24 plus packs @ £1.91 per m² / £1.37 per slab = £20.62 (£24.74 inc-VAT) per pack
30 plus packs @ £1.89 per m² / £1.36 per slab = £20.44 (£24.53 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool Building Slab RW3 40mm, 10 x 0.6x1.2m = 7.2m² - ranging from £2.51 to £2.62 per m²

1 plus packs @ £2.62 per m² / £1.89 per slab = £18.88 (£22.66 inc-VAT) per pack
6 plus packs @ £2.60 per m² / £1.87 per slab = £18.72 (£22.46 inc-VAT) per pack
12 plus packs @ £2.58 per m² / £1.86 per slab = £18.56 (£22.27 inc-VAT) per pack
18 plus packs @ £2.55 per m² / £1.84 per slab = £18.39 (£22.07 inc-VAT) per pack
24 plus packs @ £2.53 per m² / £1.82 per slab = £18.23 (£21.88 inc-VAT) per pack
30 plus packs @ £2.51 per m² / £1.81 per slab = £18.06 (£21.67 inc-VAT) per pack

Common product, generally held by all depots Rockwool Building Slab RW3 50mm, 8 x 0.6x1.2m = 5.76m² - ranging from £3.04 to £3.18 per m²

1 plus packs @ £3.18 per m² / £2.29 per slab = £18.29 (£21.95 inc-VAT) per pack
6 plus packs @ £3.15 per m² / £2.27 per slab = £18.13 (£21.76 inc-VAT) per pack
12 plus packs @ £3.12 per m² / £2.25 per slab = £17.97 (£21.56 inc-VAT) per pack
18 plus packs @ £3.09 per m² / £2.23 per slab = £17.81 (£21.37 inc-VAT) per pack
24 plus packs @ £3.06 per m² / £2.21 per slab = £17.65 (£21.18 inc-VAT) per pack
30 plus packs @ £3.04 per m² / £2.19 per slab = £17.49 (£20.99 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool Building Slab RW3 60mm, 6 x 0.6x1.2m = 4.32m² - ranging from £3.84 to £4.01 per m²

1 plus packs @ £4.01 per m² / £2.89 per slab = £17.34 (£20.81 inc-VAT) per pack
6 plus packs @ £3.98 per m² / £2.87 per slab = £17.19 (£20.63 inc-VAT) per pack
12 plus packs @ £3.94 per m² / £2.84 per slab = £17.04 (£20.45 inc-VAT) per pack
18 plus packs @ £3.91 per m² / £2.82 per slab = £16.89 (£20.27 inc-VAT) per pack
24 plus packs @ £3.88 per m² / £2.79 per slab = £16.74 (£20.09 inc-VAT) per pack
30 plus packs @ £3.84 per m² / £2.77 per slab = £16.59 (£19.91 inc-VAT) per pack

Common product, generally held by all depots Rockwool Building Slab RW3 75mm, 6 x 0.6x1.2m = 4.32m² - ranging from £4.54 to £4.75 per m²

1 plus packs @ £4.75 per m² / £3.42 per slab = £20.52 (£24.62 inc-VAT) per pack
6 plus packs @ £4.71 per m² / £3.39 per slab = £20.34 (£24.41 inc-VAT) per pack
12 plus packs @ £4.67 per m² / £3.36 per slab = £20.17 (£24.20 inc-VAT) per pack
18 plus packs @ £4.63 per m² / £3.33 per slab = £19.99 (£23.99 inc-VAT) per pack
24 plus packs @ £4.59 per m² / £3.30 per slab = £19.81 (£23.77 inc-VAT) per pack
30 plus packs @ £4.54 per m² / £3.27 per slab = £19.63 (£23.56 inc-VAT) per pack

Common product, generally held by all depots Rockwool Building Slab RW3 100mm, 4 x 0.6x1.2m = 2.88m² - ranging from £6.11 to £6.39 per m²

1 plus packs @ £6.39 per m² / £4.60 per slab = £18.39 (£22.07 inc-VAT) per pack
6 plus packs @ £6.33 per m² / £4.56 per slab = £18.23 (£21.88 inc-VAT) per pack
12 plus packs @ £6.27 per m² / £4.52 per slab = £18.07 (£21.68 inc-VAT) per pack
18 plus packs @ £6.22 per m² / £4.48 per slab = £17.91 (£21.49 inc-VAT) per pack
24 plus packs @ £6.16 per m² / £4.44 per slab = £17.75 (£21.30 inc-VAT) per pack
30 plus packs @ £6.11 per m² / £4.40 per slab = £17.59 (£21.11 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool ProRox SL 950 50mm, 6 x 0.6x1.2m = 4.32m² - ranging from £4.60 to £4.81 per m²

1 plus packs @ £4.81 per m² / £3.47 per slab = £20.80 (£24.96 inc-VAT) per pack
13 plus packs @ £4.77 per m² / £3.44 per slab = £20.62 (£24.74 inc-VAT) per pack
27 plus packs @ £4.73 per m² / £3.41 per slab = £20.43 (£24.52 inc-VAT) per pack
40 plus packs @ £4.69 per m² / £3.38 per slab = £20.25 (£24.30 inc-VAT) per pack
54 plus packs @ £4.64 per m² / £3.34 per slab = £20.06 (£24.07 inc-VAT) per pack
68 plus packs @ £4.60 per m² / £3.31 per slab = £19.88 (£23.86 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool ProRox SL 950 75mm, 4 x 0.6x1.2m = 2.88m² - ranging from £6.94 to £7.27 per m²

1 plus packs @ £7.27 per m² / £5.23 per slab = £20.93 (£25.12 inc-VAT) per pack
18 plus packs @ £7.20 per m² / £5.19 per slab = £20.75 (£24.90 inc-VAT) per pack
37 plus packs @ £7.14 per m² / £5.14 per slab = £20.56 (£24.67 inc-VAT) per pack
55 plus packs @ £7.08 per m² / £5.10 per slab = £20.38 (£24.46 inc-VAT) per pack
74 plus packs @ £7.01 per m² / £5.05 per slab = £20.19 (£24.23 inc-VAT) per pack
94 plus packs @ £6.94 per m² / £5.00 per slab = £20.00 (£24.00 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool ProRox SL 950 100mm, 3 x 0.6x1.2m = 2.16m² - ranging from £9.20 to £9.63 per m²

1 plus packs @ £9.63 per m² / £6.93 per slab = £20.80 (£24.96 inc-VAT) per pack
14 plus packs @ £9.55 per m² / £6.87 per slab = £20.62 (£24.74 inc-VAT) per pack
28 plus packs @ £9.46 per m² / £6.81 per slab = £20.43 (£24.52 inc-VAT) per pack
42 plus packs @ £9.38 per m² / £6.75 per slab = £20.25 (£24.30 inc-VAT) per pack
56 plus packs @ £9.29 per m² / £6.69 per slab = £20.06 (£24.07 inc-VAT) per pack
71 plus packs @ £9.20 per m² / £6.63 per slab = £19.88 (£23.86 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool Building Slab RW5 25mm, 8 x 0.6x1.2m = 5.76m² - ranging from £2.95 to £3.09 per m²

1 plus packs @ £3.09 per m² / £2.22 per slab = £17.77 (£21.32 inc-VAT) per pack
15 plus packs @ £3.06 per m² / £2.20 per slab = £17.62 (£21.14 inc-VAT) per pack
30 plus packs @ £3.03 per m² / £2.18 per slab = £17.46 (£20.95 inc-VAT) per pack
46 plus packs @ £3.00 per m² / £2.16 per slab = £17.30 (£20.76 inc-VAT) per pack
62 plus packs @ £2.98 per m² / £2.14 per slab = £17.15 (£20.58 inc-VAT) per pack
77 plus packs @ £2.95 per m² / £2.12 per slab = £16.99 (£20.39 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool Building Slab RW5 30mm, 8 x 0.6x1.2m = 5.76m² - ranging from £3.45 to £3.61 per m²

1 plus packs @ £3.61 per m² / £2.60 per slab = £20.77 (£24.92 inc-VAT) per pack
14 plus packs @ £3.57 per m² / £2.57 per slab = £20.58 (£24.70 inc-VAT) per pack
28 plus packs @ £3.54 per m² / £2.55 per slab = £20.40 (£24.48 inc-VAT) per pack
42 plus packs @ £3.51 per m² / £2.53 per slab = £20.22 (£24.26 inc-VAT) per pack
56 plus packs @ £3.48 per m² / £2.50 per slab = £20.03 (£24.04 inc-VAT) per pack
70 plus packs @ £3.45 per m² / £2.48 per slab = £19.85 (£23.82 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool Building Slab RW5 40mm, 6 x 0.6x1.2m = 4.32m² - ranging from £4.62 to £4.84 per m²

1 plus packs @ £4.84 per m² / £3.48 per slab = £20.90 (£25.08 inc-VAT) per pack
15 plus packs @ £4.79 per m² / £3.45 per slab = £20.71 (£24.85 inc-VAT) per pack
29 plus packs @ £4.75 per m² / £3.42 per slab = £20.53 (£24.64 inc-VAT) per pack
44 plus packs @ £4.71 per m² / £3.39 per slab = £20.34 (£24.41 inc-VAT) per pack
59 plus packs @ £4.67 per m² / £3.36 per slab = £20.16 (£24.19 inc-VAT) per pack
75 plus packs @ £4.62 per m² / £3.33 per slab = £19.97 (£23.96 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool Building Slab RW5 50mm, 4 x 0.6x1.2m = 2.88m² - ranging from £5.63 to £5.89 per m²

1 plus packs @ £5.89 per m² / £4.24 per slab = £16.96 (£20.35 inc-VAT) per pack
18 plus packs @ £5.84 per m² / £4.20 per slab = £16.81 (£20.17 inc-VAT) per pack
36 plus packs @ £5.78 per m² / £4.17 per slab = £16.66 (£19.99 inc-VAT) per pack
54 plus packs @ £5.73 per m² / £4.13 per slab = £16.51 (£19.81 inc-VAT) per pack
73 plus packs @ £5.68 per m² / £4.09 per slab = £16.36 (£19.63 inc-VAT) per pack
92 plus packs @ £5.63 per m² / £4.05 per slab = £16.21 (£19.45 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool Building Slab RW5 60mm, 4 x 0.6x1.2m = 2.88m² - ranging from £6.94 to £7.27 per m²

1 plus packs @ £7.27 per m² / £5.23 per slab = £20.93 (£25.12 inc-VAT) per pack
18 plus packs @ £7.20 per m² / £5.19 per slab = £20.75 (£24.90 inc-VAT) per pack
36 plus packs @ £7.14 per m² / £5.14 per slab = £20.56 (£24.67 inc-VAT) per pack
54 plus packs @ £7.08 per m² / £5.10 per slab = £20.38 (£24.46 inc-VAT) per pack
73 plus packs @ £7.01 per m² / £5.05 per slab = £20.19 (£24.23 inc-VAT) per pack
92 plus packs @ £6.94 per m² / £5.00 per slab = £20.00 (£24.00 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool Building Slab RW5 75mm, 3 x 0.6x1.2m = 2.16m² - ranging from £8.42 to £8.81 per m²

1 plus packs @ £8.81 per m² / £6.34 per slab = £19.02 (£22.82 inc-VAT) per pack
16 plus packs @ £8.73 per m² / £6.28 per slab = £18.85 (£22.62 inc-VAT) per pack
32 plus packs @ £8.65 per m² / £6.23 per slab = £18.68 (£22.42 inc-VAT) per pack
49 plus packs @ £8.57 per m² / £6.17 per slab = £18.51 (£22.21 inc-VAT) per pack
65 plus packs @ £8.50 per m² / £6.12 per slab = £18.35 (£22.02 inc-VAT) per pack
82 plus packs @ £8.42 per m² / £6.06 per slab = £18.18 (£21.82 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool Building Slab RW5 100mm, 2 x 0.6x1.2m = 1.44m² - ranging from £11.15 to £11.67 per m²

1 plus packs @ £11.67 per m² / £8.40 per slab = £16.80 (£20.16 inc-VAT) per pack
18 plus packs @ £11.56 per m² / £8.33 per slab = £16.65 (£19.98 inc-VAT) per pack
36 plus packs @ £11.46 per m² / £8.25 per slab = £16.50 (£19.80 inc-VAT) per pack
55 plus packs @ £11.35 per m² / £8.18 per slab = £16.35 (£19.62 inc-VAT) per pack
73 plus packs @ £11.25 per m² / £8.10 per slab = £16.20 (£19.44 inc-VAT) per pack
92 plus packs @ £11.15 per m² / £8.03 per slab = £16.05 (£19.26 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool ProRox SL 980 30mm, 6 x 0.6x1.2m = 4.32m² - ranging from £4.57 to £4.78 per m²

1 plus packs @ £4.78 per m² / £3.44 per slab = £20.65 (£24.78 inc-VAT) per pack
16 plus packs @ £4.74 per m² / £3.41 per slab = £20.47 (£24.56 inc-VAT) per pack
32 plus packs @ £4.70 per m² / £3.38 per slab = £20.29 (£24.35 inc-VAT) per pack
49 plus packs @ £4.66 per m² / £3.35 per slab = £20.11 (£24.13 inc-VAT) per pack
65 plus packs @ £4.61 per m² / £3.32 per slab = £19.92 (£23.90 inc-VAT) per pack
82 plus packs @ £4.57 per m² / £3.29 per slab = £19.74 (£23.69 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool ProRox SL 980 50mm, 3 x 0.6x1.2m = 2.16m² - ranging from £7.38 to £7.72 per m²

1 plus packs @ £7.72 per m² / £5.56 per slab = £16.68 (£20.02 inc-VAT) per pack
16 plus packs @ £7.65 per m² / £5.51 per slab = £16.53 (£19.84 inc-VAT) per pack
32 plus packs @ £7.58 per m² / £5.46 per slab = £16.38 (£19.66 inc-VAT) per pack
49 plus packs @ £7.51 per m² / £5.41 per slab = £16.23 (£19.48 inc-VAT) per pack
66 plus packs @ £7.45 per m² / £5.36 per slab = £16.09 (£19.31 inc-VAT) per pack
83 plus packs @ £7.38 per m² / £5.31 per slab = £15.94 (£19.13 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool ProRox SL 980 75mm, 2 x 0.6x1.2m = 1.44m² - ranging from £12.97 to £13.58 per m²

1 plus packs @ £13.58 per m² / £9.78 per slab = £19.55 (£23.46 inc-VAT) per pack
16 plus packs @ £13.45 per m² / £9.69 per slab = £19.37 (£23.24 inc-VAT) per pack
32 plus packs @ £13.33 per m² / £9.60 per slab = £19.20 (£23.04 inc-VAT) per pack
48 plus packs @ £13.22 per m² / £9.52 per slab = £19.03 (£22.84 inc-VAT) per pack
64 plus packs @ £13.10 per m² / £9.43 per slab = £18.86 (£22.63 inc-VAT) per pack
81 plus packs @ £12.97 per m² / £9.34 per slab = £18.68 (£22.42 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Rockwool ProRox SL 980 100mm, 2 x 0.6x1.2m = 1.44m² - ranging from £16.83 to £17.61 per m²

1 plus packs @ £17.61 per m² / £12.68 per slab = £25.36 (£30.43 inc-VAT) per pack
14 plus packs @ £17.45 per m² / £12.57 per slab = £25.13 (£30.16 inc-VAT) per pack
28 plus packs @ £17.30 per m² / £12.46 per slab = £24.91 (£29.89 inc-VAT) per pack
42 plus packs @ £17.14 per m² / £12.34 per slab = £24.68 (£29.62 inc-VAT) per pack
56 plus packs @ £16.99 per m² / £12.23 per slab = £24.46 (£29.35 inc-VAT) per pack
71 plus packs @ £16.83 per m² / £12.12 per slab = £24.24 (£29.09 inc-VAT) per pack

Knauf Earthwool Building Slabs

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

The standard products are supplied un-faced, but they can be manufactured with a factory applied foil or tissue facing, they are also available in a water repellent grade.

These slabs, branded 'RS' (short for Rocksilk, by which they were formerly known) are followed by the number that relates to their density per cubic metre. RS33 = 33 kg/m³ | RS45 = 45 kg/m³ | RS60 = 60 kg/m³ | RS80 = 80 kg/m³ | RS100 = 100 kg/m³ | RS140 = 140 kg/m³.

Availability: Although these products are popular, availability is sketchy, particularly outside of London. Please consider Rockwool products as an alternative.

Drop-down price list / Add to shopping basket

Click to Buy: Knauf Earthwool Building Slabs - Unfaced Slabs - Thermal conductivity = 0.035W/mK

Additional information on this product is provided at: Click Here.

Procedure: Select products below to see pricing structure | Use product tick-boxes to select required products | Add to Basket

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS45 25mm, 20 x 0.6x1.2m = 14.4m² - ranging from £1.27 to £1.32 per m²

1 plus packs @ £1.32 per m² / £0.95 per slab = £19.04 (£22.85 inc-VAT) per pack
19 plus packs @ £1.31 per m² / £0.94 per slab = £18.88 (£22.66 inc-VAT) per pack
37 plus packs @ £1.30 per m² / £0.94 per slab = £18.72 (£22.46 inc-VAT) per pack
55 plus packs @ £1.29 per m² / £0.93 per slab = £18.56 (£22.27 inc-VAT) per pack
74 plus packs @ £1.28 per m² / £0.92 per slab = £18.39 (£22.07 inc-VAT) per pack
94 plus packs @ £1.27 per m² / £0.91 per slab = £18.23 (£21.88 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS45 30mm, 16 x 0.6x1.2m = 11.52m² - ranging from £1.64 to £1.71 per m²

1 plus packs @ £1.71 per m² / £1.23 per slab = £19.68 (£23.62 inc-VAT) per pack
19 plus packs @ £1.69 per m² / £1.22 per slab = £19.52 (£23.42 inc-VAT) per pack
38 plus packs @ £1.68 per m² / £1.21 per slab = £19.35 (£23.22 inc-VAT) per pack
58 plus packs @ £1.66 per m² / £1.20 per slab = £19.18 (£23.02 inc-VAT) per pack
78 plus packs @ £1.65 per m² / £1.19 per slab = £19.01 (£22.81 inc-VAT) per pack
98 plus packs @ £1.64 per m² / £1.18 per slab = £18.84 (£22.61 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS45 40mm, 12 x 0.6x1.2m = 8.64m² - ranging from £2.20 to £2.29 per m²

1 plus packs @ £2.29 per m² / £1.65 per slab = £19.82 (£23.78 inc-VAT) per pack
19 plus packs @ £2.27 per m² / £1.64 per slab = £19.65 (£23.58 inc-VAT) per pack
38 plus packs @ £2.25 per m² / £1.62 per slab = £19.48 (£23.38 inc-VAT) per pack
58 plus packs @ £2.23 per m² / £1.61 per slab = £19.31 (£23.17 inc-VAT) per pack
78 plus packs @ £2.22 per m² / £1.60 per slab = £19.14 (£22.97 inc-VAT) per pack
98 plus packs @ £2.20 per m² / £1.58 per slab = £18.97 (£22.76 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS45 50mm, 10 x 0.6x1.2m = 7.2m² - ranging from £2.54 to £2.66 per m²

1 plus packs @ £2.66 per m² / £1.91 per slab = £19.13 (£22.96 inc-VAT) per pack
19 plus packs @ £2.63 per m² / £1.90 per slab = £18.96 (£22.75 inc-VAT) per pack
37 plus packs @ £2.61 per m² / £1.88 per slab = £18.80 (£22.56 inc-VAT) per pack
55 plus packs @ £2.59 per m² / £1.86 per slab = £18.64 (£22.37 inc-VAT) per pack
74 plus packs @ £2.57 per m² / £1.85 per slab = £18.47 (£22.16 inc-VAT) per pack
94 plus packs @ £2.54 per m² / £1.83 per slab = £18.31 (£21.97 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS45 60mm, 8 x 0.6x1.2m = 5.76m² - ranging from £3.33 to £3.48 per m²

1 plus packs @ £3.48 per m² / £2.50 per slab = £20.02 (£24.02 inc-VAT) per pack
19 plus packs @ £3.45 per m² / £2.48 per slab = £19.85 (£23.82 inc-VAT) per pack
38 plus packs @ £3.42 per m² / £2.46 per slab = £19.68 (£23.62 inc-VAT) per pack
57 plus packs @ £3.39 per m² / £2.44 per slab = £19.51 (£23.41 inc-VAT) per pack
77 plus packs @ £3.36 per m² / £2.42 per slab = £19.34 (£23.21 inc-VAT) per pack
97 plus packs @ £3.33 per m² / £2.40 per slab = £19.17 (£23.00 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS45 75mm, 6 x 0.6x1.2m = 4.32m² - ranging from £3.82 to £3.99 per m²

1 plus packs @ £3.99 per m² / £2.87 per slab = £17.24 (£20.69 inc-VAT) per pack
20 plus packs @ £3.96 per m² / £2.85 per slab = £17.09 (£20.51 inc-VAT) per pack
41 plus packs @ £3.92 per m² / £2.83 per slab = £16.95 (£20.34 inc-VAT) per pack
61 plus packs @ £3.89 per m² / £2.80 per slab = £16.80 (£20.16 inc-VAT) per pack
83 plus packs @ £3.85 per m² / £2.78 per slab = £16.65 (£19.98 inc-VAT) per pack
104 plus packs @ £3.82 per m² / £2.75 per slab = £16.50 (£19.80 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS45 100mm, 5 x 0.6x1.2m = 3.6m² - ranging from £5.05 to £5.28 per m²

1 plus packs @ £5.28 per m² / £3.80 per slab = £19.00 (£22.80 inc-VAT) per pack
19 plus packs @ £5.23 per m² / £3.77 per slab = £18.84 (£22.61 inc-VAT) per pack
37 plus packs @ £5.19 per m² / £3.74 per slab = £18.68 (£22.42 inc-VAT) per pack
56 plus packs @ £5.14 per m² / £3.70 per slab = £18.51 (£22.21 inc-VAT) per pack
75 plus packs @ £5.10 per m² / £3.67 per slab = £18.35 (£22.02 inc-VAT) per pack
94 plus packs @ £5.05 per m² / £3.64 per slab = £18.19 (£21.83 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS60 25mm, 18 x 0.6x1.2m = 12.96m² - ranging from £1.62 to £1.70 per m²

1 plus packs @ £1.70 per m² / £1.22 per slab = £21.99 (£26.39 inc-VAT) per pack
16 plus packs @ £1.68 per m² / £1.21 per slab = £21.80 (£26.16 inc-VAT) per pack
32 plus packs @ £1.67 per m² / £1.20 per slab = £21.62 (£25.94 inc-VAT) per pack
48 plus packs @ £1.65 per m² / £1.19 per slab = £21.43 (£25.72 inc-VAT) per pack
65 plus packs @ £1.64 per m² / £1.18 per slab = £21.24 (£25.49 inc-VAT) per pack
81 plus packs @ £1.62 per m² / £1.17 per slab = £21.05 (£25.26 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS60 30mm, 14 x 0.6x1.2m = 10.08m² - ranging from £2.03 to £2.12 per m²

1 plus packs @ £2.12 per m² / £1.53 per slab = £21.35 (£25.62 inc-VAT) per pack
18 plus packs @ £2.10 per m² / £1.51 per slab = £21.17 (£25.40 inc-VAT) per pack
36 plus packs @ £2.08 per m² / £1.50 per slab = £20.99 (£25.19 inc-VAT) per pack
54 plus packs @ £2.06 per m² / £1.49 per slab = £20.80 (£24.96 inc-VAT) per pack
72 plus packs @ £2.05 per m² / £1.47 per slab = £20.62 (£24.74 inc-VAT) per pack
91 plus packs @ £2.03 per m² / £1.46 per slab = £20.44 (£24.53 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS60 40mm, 12 x 0.6x1.2m = 8.64m² - ranging from £2.69 to £2.81 per m²

1 plus packs @ £2.81 per m² / £2.02 per slab = £24.27 (£29.12 inc-VAT) per pack
16 plus packs @ £2.78 per m² / £2.01 per slab = £24.06 (£28.87 inc-VAT) per pack
31 plus packs @ £2.76 per m² / £1.99 per slab = £23.85 (£28.62 inc-VAT) per pack
47 plus packs @ £2.74 per m² / £1.97 per slab = £23.64 (£28.37 inc-VAT) per pack
64 plus packs @ £2.71 per m² / £1.95 per slab = £23.44 (£28.13 inc-VAT) per pack
80 plus packs @ £2.69 per m² / £1.94 per slab = £23.23 (£27.88 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS60 50mm, 9 x 0.6x1.2m = 6.48m² - ranging from £3.10 to £3.24 per m²

1 plus packs @ £3.24 per m² / £2.33 per slab = £21.01 (£25.21 inc-VAT) per pack
17 plus packs @ £3.21 per m² / £2.31 per slab = £20.83 (£25.00 inc-VAT) per pack
34 plus packs @ £3.19 per m² / £2.29 per slab = £20.65 (£24.78 inc-VAT) per pack
51 plus packs @ £3.16 per m² / £2.27 per slab = £20.47 (£24.56 inc-VAT) per pack
68 plus packs @ £3.13 per m² / £2.25 per slab = £20.29 (£24.35 inc-VAT) per pack
86 plus packs @ £3.10 per m² / £2.23 per slab = £20.11 (£24.13 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS60 60mm, 7 x 0.6x1.2m = 5.04m² - ranging from £4.02 to £4.20 per m²

1 plus packs @ £4.20 per m² / £3.02 per slab = £21.17 (£25.40 inc-VAT) per pack
18 plus packs @ £4.16 per m² / £3.00 per slab = £20.99 (£25.19 inc-VAT) per pack
36 plus packs @ £4.13 per m² / £2.97 per slab = £20.81 (£24.97 inc-VAT) per pack
54 plus packs @ £4.09 per m² / £2.95 per slab = £20.63 (£24.76 inc-VAT) per pack
73 plus packs @ £4.06 per m² / £2.92 per slab = £20.45 (£24.54 inc-VAT) per pack
91 plus packs @ £4.02 per m² / £2.90 per slab = £20.27 (£24.32 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS60 75mm, 6 x 0.6x1.2m = 4.32m² - ranging from £4.63 to £4.83 per m²

1 plus packs @ £4.83 per m² / £3.48 per slab = £20.88 (£25.06 inc-VAT) per pack
17 plus packs @ £4.79 per m² / £3.45 per slab = £20.70 (£24.84 inc-VAT) per pack
34 plus packs @ £4.75 per m² / £3.42 per slab = £20.52 (£24.62 inc-VAT) per pack
51 plus packs @ £4.71 per m² / £3.39 per slab = £20.34 (£24.41 inc-VAT) per pack
68 plus packs @ £4.67 per m² / £3.36 per slab = £20.17 (£24.20 inc-VAT) per pack
86 plus packs @ £4.63 per m² / £3.33 per slab = £19.99 (£23.99 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS60 100mm, 4 x 0.6x1.2m = 2.88m² - ranging from £6.22 to £6.50 per m²

1 plus packs @ £6.50 per m² / £4.68 per slab = £18.71 (£22.45 inc-VAT) per pack
19 plus packs @ £6.44 per m² / £4.64 per slab = £18.55 (£22.26 inc-VAT) per pack
38 plus packs @ £6.39 per m² / £4.60 per slab = £18.39 (£22.07 inc-VAT) per pack
57 plus packs @ £6.33 per m² / £4.56 per slab = £18.23 (£21.88 inc-VAT) per pack
76 plus packs @ £6.27 per m² / £4.52 per slab = £18.07 (£21.68 inc-VAT) per pack
96 plus packs @ £6.22 per m² / £4.48 per slab = £17.91 (£21.49 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS100 25mm, 12 x 0.6x1.2m = 8.64m² - ranging from £3.45 to £3.60 per m²

1 plus packs @ £3.60 per m² / £2.60 per slab = £31.14 (£37.37 inc-VAT) per pack
12 plus packs @ £3.57 per m² / £2.57 per slab = £30.87 (£37.04 inc-VAT) per pack
25 plus packs @ £3.54 per m² / £2.55 per slab = £30.61 (£36.73 inc-VAT) per pack
37 plus packs @ £3.51 per m² / £2.53 per slab = £30.34 (£36.41 inc-VAT) per pack
49 plus packs @ £3.48 per m² / £2.51 per slab = £30.08 (£36.10 inc-VAT) per pack
62 plus packs @ £3.45 per m² / £2.48 per slab = £29.81 (£35.77 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS100 30mm, 10 x 0.6x1.2m = 7.2m² - ranging from £4.17 to £4.35 per m²

1 plus packs @ £4.35 per m² / £3.13 per slab = £31.34 (£37.61 inc-VAT) per pack
12 plus packs @ £4.32 per m² / £3.11 per slab = £31.07 (£37.28 inc-VAT) per pack
24 plus packs @ £4.28 per m² / £3.08 per slab = £30.81 (£36.97 inc-VAT) per pack
37 plus packs @ £4.24 per m² / £3.05 per slab = £30.54 (£36.65 inc-VAT) per pack
49 plus packs @ £4.20 per m² / £3.03 per slab = £30.27 (£36.32 inc-VAT) per pack
62 plus packs @ £4.17 per m² / £3.00 per slab = £30.00 (£36.00 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS100 40mm, 7 x 0.6x1.2m = 5.04m² - ranging from £5.60 to £5.85 per m²

1 plus packs @ £5.85 per m² / £4.21 per slab = £29.49 (£35.39 inc-VAT) per pack
13 plus packs @ £5.80 per m² / £4.18 per slab = £29.24 (£35.09 inc-VAT) per pack
26 plus packs @ £5.75 per m² / £4.14 per slab = £28.98 (£34.78 inc-VAT) per pack
39 plus packs @ £5.70 per m² / £4.10 per slab = £28.73 (£34.48 inc-VAT) per pack
52 plus packs @ £5.65 per m² / £4.07 per slab = £28.48 (£34.18 inc-VAT) per pack
66 plus packs @ £5.60 per m² / £4.03 per slab = £28.23 (£33.88 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS100 50mm, 6 x 0.6x1.2m = 4.32m² - ranging from £7.00 to £7.31 per m²

1 plus packs @ £7.31 per m² / £5.27 per slab = £31.59 (£37.91 inc-VAT) per pack
12 plus packs @ £7.25 per m² / £5.22 per slab = £31.32 (£37.58 inc-VAT) per pack
24 plus packs @ £7.19 per m² / £5.18 per slab = £31.05 (£37.26 inc-VAT) per pack
36 plus packs @ £7.13 per m² / £5.13 per slab = £30.78 (£36.94 inc-VAT) per pack
49 plus packs @ £7.06 per m² / £5.09 per slab = £30.51 (£36.61 inc-VAT) per pack
61 plus packs @ £7.00 per m² / £5.04 per slab = £30.24 (£36.29 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS100 60mm, 5 x 0.6x1.2m = 3.6m² - ranging from £8.39 to £8.76 per m²

1 plus packs @ £8.76 per m² / £6.31 per slab = £31.55 (£37.86 inc-VAT) per pack
12 plus packs @ £8.69 per m² / £6.26 per slab = £31.28 (£37.54 inc-VAT) per pack
24 plus packs @ £8.61 per m² / £6.20 per slab = £31.01 (£37.21 inc-VAT) per pack
36 plus packs @ £8.54 per m² / £6.15 per slab = £30.74 (£36.89 inc-VAT) per pack
49 plus packs @ £8.46 per m² / £6.09 per slab = £30.47 (£36.56 inc-VAT) per pack
62 plus packs @ £8.39 per m² / £6.04 per slab = £30.20 (£36.24 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS100 75mm, 4 x 0.6x1.2m = 2.88m² - ranging from £10.49 to £10.95 per m²

1 plus packs @ £10.95 per m² / £7.89 per slab = £31.54 (£37.85 inc-VAT) per pack
12 plus packs @ £10.86 per m² / £7.82 per slab = £31.27 (£37.52 inc-VAT) per pack
24 plus packs @ £10.77 per m² / £7.75 per slab = £31.01 (£37.21 inc-VAT) per pack
36 plus packs @ £10.67 per m² / £7.69 per slab = £30.74 (£36.89 inc-VAT) per pack
49 plus packs @ £10.58 per m² / £7.62 per slab = £30.47 (£36.56 inc-VAT) per pack
62 plus packs @ £10.49 per m² / £7.55 per slab = £30.20 (£36.24 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS100 100mm, 3 x 0.6x1.2m = 2.16m² - ranging from £13.93 to £14.55 per m²

1 plus packs @ £14.55 per m² / £10.47 per slab = £31.42 (£37.70 inc-VAT) per pack
12 plus packs @ £14.42 per m² / £10.38 per slab = £31.15 (£37.38 inc-VAT) per pack
24 plus packs @ £14.30 per m² / £10.29 per slab = £30.88 (£37.06 inc-VAT) per pack
37 plus packs @ £14.17 per m² / £10.20 per slab = £30.61 (£36.73 inc-VAT) per pack
49 plus packs @ £14.05 per m² / £10.11 per slab = £30.34 (£36.41 inc-VAT) per pack
62 plus packs @ £13.93 per m² / £10.03 per slab = £30.08 (£36.10 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS140 30mm, 7 x 0.6x1.2m = 5.04m² - ranging from £5.87 to £6.13 per m²

1 plus packs @ £6.13 per m² / £4.41 per slab = £30.90 (£37.08 inc-VAT) per pack
13 plus packs @ £6.08 per m² / £4.38 per slab = £30.64 (£36.77 inc-VAT) per pack
25 plus packs @ £6.03 per m² / £4.34 per slab = £30.38 (£36.46 inc-VAT) per pack
37 plus packs @ £5.97 per m² / £4.30 per slab = £30.11 (£36.13 inc-VAT) per pack
50 plus packs @ £5.92 per m² / £4.26 per slab = £29.85 (£35.82 inc-VAT) per pack
63 plus packs @ £5.87 per m² / £4.23 per slab = £29.58 (£35.50 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS140 40mm, 5 x 0.6x1.2m = 3.6m² - ranging from £7.73 to £8.08 per m²

1 plus packs @ £8.08 per m² / £5.81 per slab = £29.07 (£34.88 inc-VAT) per pack
13 plus packs @ £8.01 per m² / £5.76 per slab = £28.82 (£34.58 inc-VAT) per pack
26 plus packs @ £7.94 per m² / £5.71 per slab = £28.57 (£34.28 inc-VAT) per pack
40 plus packs @ £7.87 per m² / £5.66 per slab = £28.32 (£33.98 inc-VAT) per pack
53 plus packs @ £7.80 per m² / £5.61 per slab = £28.07 (£33.68 inc-VAT) per pack
67 plus packs @ £7.73 per m² / £5.57 per slab = £27.83 (£33.40 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS140 50mm, 4 x 0.6x1.2m = 2.88m² - ranging from £9.72 to £10.16 per m²

1 plus packs @ £10.16 per m² / £7.31 per slab = £29.25 (£35.10 inc-VAT) per pack
13 plus packs @ £10.07 per m² / £7.25 per slab = £29.00 (£34.80 inc-VAT) per pack
26 plus packs @ £9.98 per m² / £7.19 per slab = £28.75 (£34.50 inc-VAT) per pack
39 plus packs @ £9.90 per m² / £7.13 per slab = £28.50 (£34.20 inc-VAT) per pack
53 plus packs @ £9.81 per m² / £7.06 per slab = £28.25 (£33.90 inc-VAT) per pack
66 plus packs @ £9.72 per m² / £7.00 per slab = £28.00 (£33.60 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS140 75mm, 3 x 0.6x1.2m = 2.16m² - ranging from £15.91 to £16.62 per m²

1 plus packs @ £16.62 per m² / £11.96 per slab = £35.89 (£43.07 inc-VAT) per pack
11 plus packs @ £16.47 per m² / £11.86 per slab = £35.58 (£42.70 inc-VAT) per pack
21 plus packs @ £16.33 per m² / £11.76 per slab = £35.28 (£42.34 inc-VAT) per pack
32 plus packs @ £16.19 per m² / £11.66 per slab = £34.97 (£41.96 inc-VAT) per pack
43 plus packs @ £16.05 per m² / £11.55 per slab = £34.66 (£41.59 inc-VAT) per pack
54 plus packs @ £15.91 per m² / £11.45 per slab = £34.36 (£41.23 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS140 100mm, 2 x 0.6x1.2m = 1.44m² - ranging from £19.35 to £20.22 per m²

1 plus packs @ £20.22 per m² / £14.56 per slab = £29.12 (£34.94 inc-VAT) per pack
13 plus packs @ £20.05 per m² / £14.44 per slab = £28.87 (£34.64 inc-VAT) per pack
26 plus packs @ £19.88 per m² / £14.31 per slab = £28.62 (£34.34 inc-VAT) per pack
39 plus packs @ £19.70 per m² / £14.19 per slab = £28.37 (£34.04 inc-VAT) per pack
53 plus packs @ £19.53 per m² / £14.06 per slab = £28.12 (£33.74 inc-VAT) per pack
67 plus packs @ £19.35 per m² / £13.94 per slab = £27.87 (£33.44 inc-VAT) per pack

Pallet Quantities Only - Limited Availability

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS33 40mm, 12 x (14 x 0.6x1.2m) = 120.96m² - ranging from £2.69 to £2.81 per m²

1 x pallet @ £2.81 per m² / £2.03 per slab = £340.35 (£408.42 inc-VAT)
2 x pallets @ £2.79 per m² / £2.01 per slab = £337.34 (£404.81 inc-VAT)
3 x pallets @ £2.76 per m² / £1.99 per slab = £334.33 (£401.20 inc-VAT)
4 x pallets @ £2.74 per m² / £1.97 per slab = £331.31 (£397.57 inc-VAT)
5 x pallets @ £2.71 per m² / £1.95 per slab = £328.30 (£393.96 inc-VAT)
6 x pallets @ £2.69 per m² / £1.94 per slab = £325.29 (£390.35 inc-VAT)

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS33 50mm, 12 x (12 x 0.6x1.2m) = 103.68m² - ranging from £3.46 to £3.62 per m²

1 x pallet @ £3.62 per m² / £2.60 per slab = £374.91 (£449.89 inc-VAT)
2 x pallets @ £3.58 per m² / £2.58 per slab = £371.59 (£445.91 inc-VAT)
3 x pallets @ £3.55 per m² / £2.56 per slab = £368.28 (£441.94 inc-VAT)
4 x pallets @ £3.52 per m² / £2.53 per slab = £364.96 (£437.95 inc-VAT)
5 x pallets @ £3.49 per m² / £2.51 per slab = £361.64 (£433.97 inc-VAT)
6 x pallets @ £3.46 per m² / £2.49 per slab = £358.32 (£429.98 inc-VAT)

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS33 60mm, 12 x (10 x 0.6x1.2m) = 86.4m² - ranging from £4.26 to £4.45 per m²

1 x pallet @ £4.45 per m² / £3.21 per slab = £384.68 (£461.62 inc-VAT)
2 x pallets @ £4.41 per m² / £3.18 per slab = £381.27 (£457.52 inc-VAT)
3 x pallets @ £4.37 per m² / £3.15 per slab = £377.87 (£453.44 inc-VAT)
4 x pallets @ £4.33 per m² / £3.12 per slab = £374.46 (£449.35 inc-VAT)
5 x pallets @ £4.29 per m² / £3.09 per slab = £371.06 (£445.27 inc-VAT)
6 x pallets @ £4.26 per m² / £3.06 per slab = £367.65 (£441.18 inc-VAT)

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS33 70mm, 12 x (8 x 0.6x1.2m) = 69.12m² - ranging from £4.83 to £5.05 per m²

1 x pallet @ £5.05 per m² / £3.64 per slab = £349.14 (£418.97 inc-VAT)
2 x pallets @ £5.01 per m² / £3.60 per slab = £346.05 (£415.26 inc-VAT)
3 x pallets @ £4.96 per m² / £3.57 per slab = £342.96 (£411.55 inc-VAT)
4 x pallets @ £4.92 per m² / £3.54 per slab = £339.87 (£407.84 inc-VAT)
5 x pallets @ £4.87 per m² / £3.51 per slab = £336.78 (£404.14 inc-VAT)
6 x pallets @ £4.83 per m² / £3.48 per slab = £333.69 (£400.43 inc-VAT)

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Building Slab RS33 100mm, 12 x (5 x 0.6x1.2m) = 43.2m² - ranging from £6.31 to £6.60 per m²

1 x pallet @ £6.60 per m² / £4.75 per slab = £285.09 (£342.11 inc-VAT)
2 x pallets @ £6.54 per m² / £4.71 per slab = £282.57 (£339.08 inc-VAT)
3 x pallets @ £6.48 per m² / £4.67 per slab = £280.04 (£336.05 inc-VAT)
4 x pallets @ £6.42 per m² / £4.63 per slab = £277.52 (£333.02 inc-VAT)
5 x pallets @ £6.37 per m² / £4.58 per slab = £275.00 (£330.00 inc-VAT)
6 x pallets @ £6.31 per m² / £4.54 per slab = £272.48 (£326.98 inc-VAT)


Rockwool Flexi Flexible Mineral Slabs

Rockwool Stone Mineral Wool Building, Flexi and Cavity Slab. Also Fire Barrier System

Rockwool Flexi is a multi-purpose, flexible (on one edge), non-combustible, mineral wool slab specifically designed for installation by friction fitting. They are typically used for the thermal and acoustic insulation of a wide variety of constructions such as stud partitions, either timber or metal, timber frame walls and suspended timber floors.

Uniquely, Rockwool Flexi is available in widths of 400mm as well as the standard 600mm.

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

Drop-down price list / Add to shopping basket

Click to Buy: Rockwool Flexible Slabs - Stone Mineral Wool - Unfaced Slabs - Thermal conductivity = 0.035W/mK

Additional information on this product is provided at: Click Here.


Procedure: Select products below to see pricing structure | Use product tick-boxes to select required products | Add to Basket

Less popular product commonly available at selected depots. Rockwool Flexi 50mm, 12 x 0.4x1.2m = 5.76m² - ranging from £2.66 to £2.78 per m²

1 plus packs @ £2.78 per m² / £1.34 per slab = £16.02 (£19.22 inc-VAT) per pack
6 plus packs @ £2.76 per m² / £1.32 per slab = £15.87 (£19.04 inc-VAT) per pack
12 plus packs @ £2.73 per m² / £1.31 per slab = £15.73 (£18.88 inc-VAT) per pack
18 plus packs @ £2.71 per m² / £1.30 per slab = £15.59 (£18.71 inc-VAT) per pack
24 plus packs @ £2.68 per m² / £1.29 per slab = £15.45 (£18.54 inc-VAT) per pack
30 plus packs @ £2.66 per m² / £1.28 per slab = £15.31 (£18.37 inc-VAT) per pack

Less popular product commonly available at selected depots. Rockwool Flexi 100mm, 6 x 0.4x1.2m = 2.88m² - ranging from £6.02 to £6.30 per m²

1 plus packs @ £6.30 per m² / £3.02 per slab = £18.13 (£21.76 inc-VAT) per pack
10 plus packs @ £6.24 per m² / £3.00 per slab = £17.97 (£21.56 inc-VAT) per pack
20 plus packs @ £6.18 per m² / £2.97 per slab = £17.81 (£21.37 inc-VAT) per pack
30 plus packs @ £6.13 per m² / £2.94 per slab = £17.65 (£21.18 inc-VAT) per pack
40 plus packs @ £6.07 per m² / £2.92 per slab = £17.49 (£20.99 inc-VAT) per pack
50 plus packs @ £6.02 per m² / £2.89 per slab = £17.33 (£20.80 inc-VAT) per pack

Less popular product commonly available at selected depots. Rockwool Flexi 140mm, 4 x 0.4x1.2m = 1.92m² - ranging from £8.43 to £8.82 per m²

1 plus packs @ £8.82 per m² / £4.23 per slab = £16.93 (£20.32 inc-VAT) per pack
12 plus packs @ £8.74 per m² / £4.20 per slab = £16.78 (£20.14 inc-VAT) per pack
24 plus packs @ £8.66 per m² / £4.16 per slab = £16.63 (£19.96 inc-VAT) per pack
36 plus packs @ £8.58 per m² / £4.12 per slab = £16.48 (£19.78 inc-VAT) per pack
48 plus packs @ £8.51 per m² / £4.08 per slab = £16.33 (£19.60 inc-VAT) per pack
60 plus packs @ £8.43 per m² / £4.05 per slab = £16.18 (£19.42 inc-VAT) per pack

Common product, generally held by all depots Rockwool Flexi 50mm, 12 x 0.6x1.2m = 8.64m² - ranging from £2.66 to £2.78 per m²

1 plus packs @ £2.78 per m² / £2.00 per slab = £24.02 (£28.82 inc-VAT) per pack
6 plus packs @ £2.76 per m² / £1.98 per slab = £23.81 (£28.57 inc-VAT) per pack
12 plus packs @ £2.73 per m² / £1.97 per slab = £23.60 (£28.32 inc-VAT) per pack
18 plus packs @ £2.71 per m² / £1.95 per slab = £23.38 (£28.06 inc-VAT) per pack
24 plus packs @ £2.68 per m² / £1.93 per slab = £23.17 (£27.80 inc-VAT) per pack
30 plus packs @ £2.66 per m² / £1.91 per slab = £22.96 (£27.55 inc-VAT) per pack

Common product, generally held by all depots Rockwool Flexi 60mm, 12 x 0.6x1.2m = 8.64m² - ranging from £3.28 to £3.44 per m²

1 plus packs @ £3.44 per m² / £2.47 per slab = £29.69 (£35.63 inc-VAT) per pack
6 plus packs @ £3.41 per m² / £2.45 per slab = £29.42 (£35.30 inc-VAT) per pack
12 plus packs @ £3.38 per m² / £2.43 per slab = £29.16 (£34.99 inc-VAT) per pack
18 plus packs @ £3.34 per m² / £2.41 per slab = £28.90 (£34.68 inc-VAT) per pack
24 plus packs @ £3.31 per m² / £2.39 per slab = £28.63 (£34.36 inc-VAT) per pack
30 plus packs @ £3.28 per m² / £2.36 per slab = £28.37 (£34.04 inc-VAT) per pack

Common product, generally held by all depots Rockwool Flexi 70mm, 8 x 0.6x1.2m = 5.76m² - ranging from £3.77 to £3.94 per m²

1 plus packs @ £3.94 per m² / £2.84 per slab = £22.72 (£27.26 inc-VAT) per pack
6 plus packs @ £3.91 per m² / £2.82 per slab = £22.52 (£27.02 inc-VAT) per pack
12 plus packs @ £3.88 per m² / £2.79 per slab = £22.32 (£26.78 inc-VAT) per pack
18 plus packs @ £3.84 per m² / £2.77 per slab = £22.12 (£26.54 inc-VAT) per pack
24 plus packs @ £3.81 per m² / £2.74 per slab = £21.92 (£26.30 inc-VAT) per pack
30 plus packs @ £3.77 per m² / £2.72 per slab = £21.72 (£26.06 inc-VAT) per pack

Less popular product commonly available at selected depots. Rockwool Flexi 90mm, 6 x 0.6x1.2m = 4.32m² - ranging from £4.67 to £4.88 per m²

1 plus packs @ £4.88 per m² / £3.52 per slab = £21.09 (£25.31 inc-VAT) per pack
10 plus packs @ £4.84 per m² / £3.49 per slab = £20.91 (£25.09 inc-VAT) per pack
20 plus packs @ £4.80 per m² / £3.45 per slab = £20.72 (£24.86 inc-VAT) per pack
30 plus packs @ £4.75 per m² / £3.42 per slab = £20.53 (£24.64 inc-VAT) per pack
40 plus packs @ £4.71 per m² / £3.39 per slab = £20.35 (£24.42 inc-VAT) per pack
50 plus packs @ £4.67 per m² / £3.36 per slab = £20.16 (£24.19 inc-VAT) per pack

Common product, generally held by all depots Rockwool Flexi 100mm, 6 x 0.6x1.2m = 4.32m² - ranging from £5.29 to £5.54 per m²

1 plus packs @ £5.54 per m² / £3.99 per slab = £23.92 (£28.70 inc-VAT) per pack
10 plus packs @ £5.49 per m² / £3.95 per slab = £23.71 (£28.45 inc-VAT) per pack
20 plus packs @ £5.44 per m² / £3.92 per slab = £23.50 (£28.20 inc-VAT) per pack
30 plus packs @ £5.39 per m² / £3.88 per slab = £23.29 (£27.95 inc-VAT) per pack
40 plus packs @ £5.34 per m² / £3.85 per slab = £23.08 (£27.70 inc-VAT) per pack
50 plus packs @ £5.29 per m² / £3.81 per slab = £22.87 (£27.44 inc-VAT) per pack

Less popular product commonly available at selected depots. Rockwool Flexi 140mm, 4 x 0.6x1.2m = 2.88m² - ranging from £8.45 to £8.84 per m²

1 plus packs @ £8.84 per m² / £6.36 per slab = £25.45 (£30.54 inc-VAT) per pack
8 plus packs @ £8.76 per m² / £6.31 per slab = £25.23 (£30.28 inc-VAT) per pack
16 plus packs @ £8.68 per m² / £6.25 per slab = £25.00 (£30.00 inc-VAT) per pack
24 plus packs @ £8.60 per m² / £6.20 per slab = £24.78 (£29.74 inc-VAT) per pack
32 plus packs @ £8.52 per m² / £6.14 per slab = £24.55 (£29.46 inc-VAT) per pack
40 plus packs @ £8.45 per m² / £6.08 per slab = £24.33 (£29.20 inc-VAT) per pack


Knauf Flexible Slabs

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

Earthwool Flexible Slab is also a multi-purpose, flexible (all four edges), non-combustible, rock mineral wool slab specifically designed for installation by friction fitting. They are typically used for the thermal and acoustic insulation of a wide variety of constructions such as timber and metal stud partitions, timber frame walls and suspended timber floors.

Availability: Although these products are popular, availability is sketchy, particularly outside of London. Please consider Rockwool products as an alternative.

Drop-down price list / Add to shopping basket

Click to Buy: Knauf Earthwool Flexi Slabs - Stone Mineral Wool - Unfaced Slabs - Thermal conductivity = 0.035W/mK

Additional information on this product is provided at: Click Here.

Procedure: Select products below to see pricing structure | Use product tick-boxes to select required products | Add to Basket

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Flexible Slab 50mm, 12 x 0.6x1.2m = 8.64m² - ranging from £3.09 to £3.22 per m²

1 plus packs @ £3.22 per m² / £2.32 per slab = £27.84 (£33.41 inc-VAT) per pack
14 plus packs @ £3.19 per m² / £2.30 per slab = £27.60 (£33.12 inc-VAT) per pack
28 plus packs @ £3.17 per m² / £2.28 per slab = £27.37 (£32.84 inc-VAT) per pack
43 plus packs @ £3.14 per m² / £2.26 per slab = £27.13 (£32.56 inc-VAT) per pack
57 plus packs @ £3.11 per m² / £2.24 per slab = £26.89 (£32.27 inc-VAT) per pack
72 plus packs @ £3.09 per m² / £2.22 per slab = £26.66 (£31.99 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Flexible Slab 60mm, 10 x 0.6x1.2m = 7.2m² - ranging from £4.24 to £4.44 per m²

1 plus packs @ £4.44 per m² / £3.20 per slab = £31.98 (£38.38 inc-VAT) per pack
15 plus packs @ £4.40 per m² / £3.17 per slab = £31.70 (£38.04 inc-VAT) per pack
29 plus packs @ £4.36 per m² / £3.14 per slab = £31.41 (£37.69 inc-VAT) per pack
43 plus packs @ £4.32 per m² / £3.11 per slab = £31.13 (£37.36 inc-VAT) per pack
58 plus packs @ £4.28 per m² / £3.09 per slab = £30.85 (£37.02 inc-VAT) per pack
73 plus packs @ £4.24 per m² / £3.06 per slab = £30.56 (£36.67 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Flexible Slab 70mm, 8 x 0.6x1.2m = 5.76m² - ranging from £4.44 to £4.63 per m²

1 plus packs @ £4.63 per m² / £3.33 per slab = £26.67 (£32.00 inc-VAT) per pack
13 plus packs @ £4.59 per m² / £3.31 per slab = £26.44 (£31.73 inc-VAT) per pack
25 plus packs @ £4.55 per m² / £3.28 per slab = £26.22 (£31.46 inc-VAT) per pack
38 plus packs @ £4.51 per m² / £3.25 per slab = £26.00 (£31.20 inc-VAT) per pack
51 plus packs @ £4.47 per m² / £3.22 per slab = £25.77 (£30.92 inc-VAT) per pack
64 plus packs @ £4.44 per m² / £3.19 per slab = £25.55 (£30.66 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Flexible Slab 90mm, 6 x 0.6x1.2m = 4.32m² - ranging from £5.46 to £5.70 per m²

1 plus packs @ £5.70 per m² / £4.11 per slab = £24.63 (£29.56 inc-VAT) per pack
16 plus packs @ £5.65 per m² / £4.07 per slab = £24.42 (£29.30 inc-VAT) per pack
32 plus packs @ £5.61 per m² / £4.04 per slab = £24.22 (£29.06 inc-VAT) per pack
49 plus packs @ £5.56 per m² / £4.00 per slab = £24.01 (£28.81 inc-VAT) per pack
66 plus packs @ £5.51 per m² / £3.97 per slab = £23.80 (£28.56 inc-VAT) per pack
83 plus packs @ £5.46 per m² / £3.93 per slab = £23.59 (£28.31 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Flexible Slab 100mm, 6 x 0.6x1.2m = 4.32m² - ranging from £6.22 to £6.49 per m²

1 plus packs @ £6.49 per m² / £4.67 per slab = £28.02 (£33.62 inc-VAT) per pack
14 plus packs @ £6.43 per m² / £4.63 per slab = £27.79 (£33.35 inc-VAT) per pack
29 plus packs @ £6.38 per m² / £4.59 per slab = £27.55 (£33.06 inc-VAT) per pack
43 plus packs @ £6.32 per m² / £4.55 per slab = £27.32 (£32.78 inc-VAT) per pack
58 plus packs @ £6.27 per m² / £4.51 per slab = £27.08 (£32.50 inc-VAT) per pack
73 plus packs @ £6.22 per m² / £4.48 per slab = £26.85 (£32.22 inc-VAT) per pack

Availability Undetermined - Special circumstances are involved in the supply of these products.. Knauf Earthwool® Flexible Slab 140mm, 3 x 0.6x1.2m = 2.16m² - ranging from £8.71 to £9.09 per m²

1 plus packs @ £9.09 per m² / £6.55 per slab = £19.64 (£23.57 inc-VAT) per pack
17 plus packs @ £9.02 per m² / £6.49 per slab = £19.48 (£23.38 inc-VAT) per pack
34 plus packs @ £8.94 per m² / £6.44 per slab = £19.31 (£23.17 inc-VAT) per pack
51 plus packs @ £8.87 per m² / £6.38 per slab = £19.15 (£22.98 inc-VAT) per pack
68 plus packs @ £8.79 per m² / £6.33 per slab = £18.98 (£22.78 inc-VAT) per pack
86 plus packs @ £8.71 per m² / £6.27 per slab = £18.82 (£22.58 inc-VAT) per pack

Rockwool Cavity Batts

Rockwool Stone Mineral Wool Building, Flexi and Cavity Slab. Also Fire Barrier System

Rockwool cavity insulation is a rigid full-fill insulation solution for masonry cavity wall construction, suitable for use in new builds or extensions. Lightweight and easy to handle, the batts are simple to install and provide a close fit against brick and blockwork, adapting to imperfections in the cavity wall. They are are non-combustible and contain water repellent additives that prevent moisture transmission between the outer and inner leaf.

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

Drop-down price list / Add to basket

Click to Buy: RockwoolFull Fill and Partial Fill Cavity Slabs - Mineral Stone Wool

Additional information on this product is provided at: Click Here.


Procedure: Select products below to see pricing structure | Use product tick-boxes to select required products | Add to Basket

Less popular product commonly available at selected depots. Rockwool Cavity Insulation 50mm, 12 x 0.455x1.2m = 6.55m² - ranging from £3.01 to £3.15 per m²

1 plus packs @ £3.15 per m² / £1.72 per slab = £20.66 (£24.79 inc-VAT) per pack
12 plus packs @ £3.13 per m² / £1.71 per slab = £20.47 (£24.56 inc-VAT) per pack
25 plus packs @ £3.10 per m² / £1.69 per slab = £20.29 (£24.35 inc-VAT) per pack
37 plus packs @ £3.07 per m² / £1.68 per slab = £20.11 (£24.13 inc-VAT) per pack
49 plus packs @ £3.04 per m² / £1.66 per slab = £19.92 (£23.90 inc-VAT) per pack
62 plus packs @ £3.01 per m² / £1.65 per slab = £19.74 (£23.69 inc-VAT) per pack

Less popular product commonly available at selected depots. Rockwool Cavity Insulation 75mm, 9 x 0.455x1.2m = 4.91m² - ranging from £4.00 to £4.18 per m²

1 plus packs @ £4.18 per m² / £2.28 per slab = £20.53 (£24.64 inc-VAT) per pack
2 plus packs @ £4.14 per m² / £2.26 per slab = £20.35 (£24.42 inc-VAT) per pack
3 plus packs @ £4.11 per m² / £2.24 per slab = £20.17 (£24.20 inc-VAT) per pack
4 plus packs @ £4.07 per m² / £2.22 per slab = £19.99 (£23.99 inc-VAT) per pack
5 plus packs @ £4.03 per m² / £2.20 per slab = £19.81 (£23.77 inc-VAT) per pack
6 plus packs @ £4.00 per m² / £2.18 per slab = £19.63 (£23.56 inc-VAT) per pack

Less popular product commonly available at selected depots. Rockwool Cavity Insulation 80mm, 8 x 0.455x1.2m = 4.37m² - ranging from £5.00 to £5.23 per m²

1 plus packs @ £5.23 per m² / £2.86 per slab = £22.87 (£27.44 inc-VAT) per pack
13 plus packs @ £5.19 per m² / £2.83 per slab = £22.67 (£27.20 inc-VAT) per pack
27 plus packs @ £5.14 per m² / £2.81 per slab = £22.46 (£26.95 inc-VAT) per pack
40 plus packs @ £5.09 per m² / £2.78 per slab = £22.26 (£26.71 inc-VAT) per pack
54 plus packs @ £5.05 per m² / £2.76 per slab = £22.06 (£26.47 inc-VAT) per pack
67 plus packs @ £5.00 per m² / £2.73 per slab = £21.86 (£26.23 inc-VAT) per pack

Common product, generally held by all depots Rockwool Cavity Insulation 100mm, 6 x 0.455x1.2m = 3.28m² - ranging from £5.16 to £5.40 per m²

1 plus packs @ £5.40 per m² / £2.95 per slab = £17.72 (£21.26 inc-VAT) per pack
14 plus packs @ £5.35 per m² / £2.93 per slab = £17.56 (£21.07 inc-VAT) per pack
29 plus packs @ £5.31 per m² / £2.90 per slab = £17.41 (£20.89 inc-VAT) per pack
43 plus packs @ £5.26 per m² / £2.88 per slab = £17.25 (£20.70 inc-VAT) per pack
58 plus packs @ £5.21 per m² / £2.85 per slab = £17.09 (£20.51 inc-VAT) per pack
72 plus packs @ £5.16 per m² / £2.82 per slab = £16.94 (£20.33 inc-VAT) per pack


Knauf Dritherm Cavity Slabs

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

Earthwool DriTherm Cavity Slabs are semi-rigid or rigid slabs of non-combustible, water repellent, glass mineral wool. They are 455mm wide to suit standard vertical wall tie spacings, ensuring a closed joint with adjacent slabs. Earthwool DriTherm Cavity Slabs are for the thermal insulation of masonry cavity external walls and can be installed to fully fill the cavity. They are approved for use in buildings up to 12m high in any exposure zone and for use in multi-storey applications up to 25m in height.

Availability: Although these products are popular, availability is challenging, particularly outside of London.
Please consider Rockwool products as an alternative.

Drop-down price list / Add to shopping basket

Click to Buy: Knauf Earthwool Dritherm Full Fill and Partial Fill Cavity Wall Insulation - Glass Mineral Wool Slabs

Additional information on this product is provided at: Click Here.

Procedure: Select products below to see pricing structure | Use product tick-boxes to select required products | Add to Basket



Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 32 Ultimate 75mm, 6 x 0.455x1.2m = 3.28m² - ranging from £9.63 to £10.07 per m²

1 plus packs @ £10.07 per m² / £5.51 per slab = £33.03 (£39.64 inc-VAT) per pack
6 plus packs @ £9.98 per m² / £5.46 per slab = £32.74 (£39.29 inc-VAT) per pack
11 plus packs @ £9.89 per m² / £5.41 per slab = £32.44 (£38.93 inc-VAT) per pack
16 plus packs @ £9.80 per m² / £5.36 per slab = £32.15 (£38.58 inc-VAT) per pack
21 plus packs @ £9.71 per m² / £5.31 per slab = £31.86 (£38.23 inc-VAT) per pack
26 plus packs @ £9.63 per m² / £5.26 per slab = £31.57 (£37.88 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 32 Ultimate 85mm, 5 x 0.455x1.2m = 2.73m² - ranging from £10.89 to £11.39 per m²

1 plus packs @ £11.39 per m² / £6.22 per slab = £31.10 (£37.32 inc-VAT) per pack
5 plus packs @ £11.29 per m² / £6.17 per slab = £30.83 (£37.00 inc-VAT) per pack
9 plus packs @ £11.19 per m² / £6.11 per slab = £30.55 (£36.66 inc-VAT) per pack
14 plus packs @ £11.09 per m² / £6.06 per slab = £30.28 (£36.34 inc-VAT) per pack
19 plus packs @ £10.99 per m² / £6.00 per slab = £30.00 (£36.00 inc-VAT) per pack
24 plus packs @ £10.89 per m² / £5.94 per slab = £29.72 (£35.66 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 32 Ultimate 100mm, 6 x 0.455x1.2m = 3.28m² - ranging from £12.57 to £13.16 per m²

1 plus packs @ £13.16 per m² / £7.19 per slab = £43.15 (£51.78 inc-VAT) per pack
6 plus packs @ £13.04 per m² / £7.13 per slab = £42.77 (£51.32 inc-VAT) per pack
11 plus packs @ £12.92 per m² / £7.06 per slab = £42.38 (£50.86 inc-VAT) per pack
16 plus packs @ £12.80 per m² / £7.00 per slab = £42.00 (£50.40 inc-VAT) per pack
22 plus packs @ £12.69 per m² / £6.94 per slab = £41.62 (£49.94 inc-VAT) per pack
27 plus packs @ £12.57 per m² / £6.87 per slab = £41.24 (£49.49 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 34 Super 75mm, 10 x 0.455x1.2m = 5.46m² - ranging from £7.29 to £7.63 per m²

1 plus packs @ £7.63 per m² / £4.17 per slab = £41.65 (£49.98 inc-VAT) per pack
6 plus packs @ £7.56 per m² / £4.13 per slab = £41.28 (£49.54 inc-VAT) per pack
11 plus packs @ £7.49 per m² / £4.09 per slab = £40.91 (£49.09 inc-VAT) per pack
17 plus packs @ £7.43 per m² / £4.06 per slab = £40.55 (£48.66 inc-VAT) per pack
22 plus packs @ £7.36 per m² / £4.02 per slab = £40.18 (£48.22 inc-VAT) per pack
28 plus packs @ £7.29 per m² / £3.98 per slab = £39.81 (£47.77 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 34 Super 100mm, 8 x 0.455x1.2m = 4.37m² - ranging from £9.51 to £9.96 per m²

1 plus packs @ £9.96 per m² / £5.44 per slab = £43.51 (£52.21 inc-VAT) per pack
6 plus packs @ £9.87 per m² / £5.39 per slab = £43.12 (£51.74 inc-VAT) per pack
11 plus packs @ £9.78 per m² / £5.34 per slab = £42.74 (£51.29 inc-VAT) per pack
16 plus packs @ £9.69 per m² / £5.29 per slab = £42.35 (£50.82 inc-VAT) per pack
21 plus packs @ £9.60 per m² / £5.25 per slab = £41.97 (£50.36 inc-VAT) per pack
27 plus packs @ £9.51 per m² / £5.20 per slab = £41.58 (£49.90 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 37 Standard 50mm, 12 x 0.455x1.2m = 6.55m² - ranging from £3.41 to £3.57 per m²

1 plus packs @ £3.57 per m² / £1.95 per slab = £23.39 (£28.07 inc-VAT) per pack
8 plus packs @ £3.54 per m² / £1.93 per slab = £23.19 (£27.83 inc-VAT) per pack
15 plus packs @ £3.51 per m² / £1.92 per slab = £22.98 (£27.58 inc-VAT) per pack
22 plus packs @ £3.48 per m² / £1.90 per slab = £22.77 (£27.32 inc-VAT) per pack
30 plus packs @ £3.45 per m² / £1.88 per slab = £22.57 (£27.08 inc-VAT) per pack
37 plus packs @ £3.41 per m² / £1.86 per slab = £22.36 (£26.83 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 37 Standard 65mm, 10 x 0.455x1.2m = 5.46m² - ranging from £3.93 to £4.11 per m²

1 plus packs @ £4.11 per m² / £2.25 per slab = £22.46 (£26.95 inc-VAT) per pack
7 plus packs @ £4.08 per m² / £2.23 per slab = £22.26 (£26.71 inc-VAT) per pack
13 plus packs @ £4.04 per m² / £2.21 per slab = £22.07 (£26.48 inc-VAT) per pack
19 plus packs @ £4.01 per m² / £2.19 per slab = £21.87 (£26.24 inc-VAT) per pack
26 plus packs @ £3.97 per m² / £2.17 per slab = £21.67 (£26.00 inc-VAT) per pack
32 plus packs @ £3.93 per m² / £2.15 per slab = £21.47 (£25.76 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 37 Standard 75mm, 8 x 0.455x1.2m = 4.37m² - ranging from £4.16 to £4.35 per m²

1 plus packs @ £4.35 per m² / £2.38 per slab = £19.02 (£22.82 inc-VAT) per pack
6 plus packs @ £4.31 per m² / £2.36 per slab = £18.85 (£22.62 inc-VAT) per pack
12 plus packs @ £4.27 per m² / £2.34 per slab = £18.68 (£22.42 inc-VAT) per pack
18 plus packs @ £4.24 per m² / £2.31 per slab = £18.51 (£22.21 inc-VAT) per pack
24 plus packs @ £4.20 per m² / £2.29 per slab = £18.34 (£22.01 inc-VAT) per pack
31 plus packs @ £4.16 per m² / £2.27 per slab = £18.18 (£21.82 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 37 Standard 85mm, 8 x 0.455x1.2m = 4.37m² - ranging from £4.70 to £4.92 per m²

1 plus packs @ £4.92 per m² / £2.69 per slab = £21.49 (£25.79 inc-VAT) per pack
6 plus packs @ £4.87 per m² / £2.66 per slab = £21.30 (£25.56 inc-VAT) per pack
11 plus packs @ £4.83 per m² / £2.64 per slab = £21.11 (£25.33 inc-VAT) per pack
16 plus packs @ £4.79 per m² / £2.62 per slab = £20.92 (£25.10 inc-VAT) per pack
22 plus packs @ £4.74 per m² / £2.59 per slab = £20.73 (£24.88 inc-VAT) per pack
27 plus packs @ £4.70 per m² / £2.57 per slab = £20.54 (£24.65 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 37 Standard 100mm, 12 x 0.455x1.2m = 6.55m² - ranging from £5.47 to £5.72 per m²

1 plus packs @ £5.72 per m² / £3.12 per slab = £37.46 (£44.95 inc-VAT) per pack
6 plus packs @ £5.67 per m² / £3.09 per slab = £37.13 (£44.56 inc-VAT) per pack
12 plus packs @ £5.62 per m² / £3.07 per slab = £36.79 (£44.15 inc-VAT) per pack
18 plus packs @ £5.57 per m² / £3.04 per slab = £36.46 (£43.75 inc-VAT) per pack
24 plus packs @ £5.52 per m² / £3.01 per slab = £36.13 (£43.36 inc-VAT) per pack
31 plus packs @ £5.47 per m² / £2.98 per slab = £35.80 (£42.96 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 37 Standard 125mm, 6 x 0.455x1.2m = 3.28m² - ranging from £6.86 to £7.18 per m²

1 plus packs @ £7.18 per m² / £3.92 per slab = £23.54 (£28.25 inc-VAT) per pack
6 plus packs @ £7.11 per m² / £3.89 per slab = £23.33 (£28.00 inc-VAT) per pack
12 plus packs @ £7.05 per m² / £3.85 per slab = £23.12 (£27.74 inc-VAT) per pack
18 plus packs @ £6.99 per m² / £3.82 per slab = £22.92 (£27.50 inc-VAT) per pack
24 plus packs @ £6.92 per m² / £3.79 per slab = £22.71 (£27.25 inc-VAT) per pack
30 plus packs @ £6.86 per m² / £3.75 per slab = £22.50 (£27.00 inc-VAT) per pack


Rockwool Fire Barrier System

Rockwool Stone Mineral Wool Building, Flexi and Cavity Slab. Also Fire Barrier System

Fire Barrier systems offer solutions to prevent fire and smoke spread within roof and ceiling voids. The vertically hung fire barriers are capable of achieving both integrity and insulation protection periods from 15 to 120 minutes of integrity and insulation. Rockwool’s essential insulation performance limits the heat transfer through the barriers, preventing ignition of combustible materials in adjacent areas. Rockwool's patented ‘Quick Fit’ support system offers a fast, cost effective installation method for Fire Barriers, for periods of up to 60 minutes, and focuses on ease of construction and installation, and has the added benefit of reducing the risks of installation errors.

Availability: These products are popular, and are available at many of our depots. However, we suggest allowing a 4 - 5 day lead-time.

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Click to Buy: Rockwool Fire Barrier System - Fire insulation with angle bracket and clamping plate system

Additional information on this product is provided at: Click Here.

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Common product, generally held by all depots Rockwool Easyfit Fire Barrier Angle, length = 3lm - ranging from £5.74 to £6.00 per lm

1 plus lengths @ £6.00 per lm = £18.01 (£21.61 inc-VAT) per length
16 plus lengths @ £5.95 per lm = £17.85 (£21.42 inc-VAT) per length
31 plus lengths @ £5.90 per lm = £17.69 (£21.23 inc-VAT) per length
47 plus lengths @ £5.84 per lm = £17.53 (£21.04 inc-VAT) per length
63 plus lengths @ £5.79 per lm = £17.37 (£20.84 inc-VAT) per length
79 plus lengths @ £5.74 per lm = £17.21 (£20.65 inc-VAT) per length

Common product, generally held by all depots Rockwool Easyfit Fire Barrier Clamping Plate, length = 3lm - ranging from £3.21 to £3.36 per lm

1 plus lengths @ £3.36 per lm = £10.07 (£12.08 inc-VAT) per length
28 plus lengths @ £3.33 per lm = £9.98 (£11.98 inc-VAT) per length
56 plus lengths @ £3.30 per lm = £9.90 (£11.88 inc-VAT) per length
84 plus lengths @ £3.27 per lm = £9.81 (£11.77 inc-VAT) per length
113 plus lengths @ £3.24 per lm = £9.72 (£11.66 inc-VAT) per length
142 plus lengths @ £3.21 per lm = £9.63 (£11.56 inc-VAT) per length

Common product, generally held by all depots Rockwool Fire Barrier - foil on both faces 50mm, 1x4m = 4m² - ranging from £18.97 to £19.85 per m²

1 plus rolls @ £19.85 per m² = £79.38 (£95.26 inc-VAT) per roll
4 plus rolls @ £19.67 per m² = £78.67 (£94.40 inc-VAT) per roll
8 plus rolls @ £19.49 per m² = £77.97 (£93.56 inc-VAT) per roll
11 plus rolls @ £19.32 per m² = £77.27 (£92.72 inc-VAT) per roll
15 plus rolls @ £19.14 per m² = £76.57 (£91.88 inc-VAT) per roll
19 plus rolls @ £18.97 per m² = £75.86 (£91.03 inc-VAT) per roll

Rarely requested product sourced directly from manufacturer. Rockwool Fire Barrier - foil on one face 50mm, 1x4m = 4m² - ranging from £18.76 to £19.63 per m²

1 plus rolls @ £19.63 per m² = £78.52 (£94.22 inc-VAT) per roll
4 plus rolls @ £19.46 per m² = £77.82 (£93.38 inc-VAT) per roll
8 plus rolls @ £19.28 per m² = £77.13 (£92.56 inc-VAT) per roll
11 plus rolls @ £19.11 per m² = £76.43 (£91.72 inc-VAT) per roll
15 plus rolls @ £18.94 per m² = £75.74 (£90.89 inc-VAT) per roll
19 plus rolls @ £18.76 per m² = £75.04 (£90.05 inc-VAT) per roll

Common product, generally held by all depots Rockwool Plain Fire Barrier 50mm, 1x4m = 4m² - ranging from £12.29 to £12.86 per m²

1 plus rolls @ £12.86 per m² = £51.44 (£61.73 inc-VAT) per roll
3 plus rolls @ £12.75 per m² = £50.99 (£61.19 inc-VAT) per roll
6 plus rolls @ £12.63 per m² = £50.53 (£60.64 inc-VAT) per roll
9 plus rolls @ £12.52 per m² = £50.08 (£60.10 inc-VAT) per roll
12 plus rolls @ £12.41 per m² = £49.62 (£59.54 inc-VAT) per roll
15 plus rolls @ £12.29 per m² = £49.17 (£59.00 inc-VAT) per roll


Product availability indicators

Price and Availability Advisory: Mineral Wool Slabs

Rockwool Building Slab RW3 Fitted under pitched roof

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
Product availability depends upon stock levels at closest depot and delivery logistics to geographic locations


Priced on Application:

Generally, either Rockwool or the Knauf Earthwool Mineral Slab should be available for fairly speedy delivery.

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 9000 989  - Email: Click Here:



Manufacturer's Contact Details

Use Products Brands Menu or Links below

Brand: Knauf Earthwool and Glass Mineral Wool Rolls

Brand: Rockwool Mineral Wool Slabs

Our Contact Details

www.just-insulation.com

27 Massetts Road, Horley, Surrey, RH6 7DQ

Telephone: 0333 9000 989

Facsimile: 0333 7000 797

Email: enquiries@just-insulation.com

Web presence: just-insulation.com