Another brick in the wall

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Brands: Earthwool Flexi Slabs, RS45, RS60, RS80, RS100, RS140, Cavity Batts and more from Knauf

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Earthwool Slabs - Knauf Thermal and Acoustic Batts

Ranging in density from 33kg/m3 to 200kg/m3

Knauf Flexi, RS33, RS45, RS60, RS100 RS128, RS140 and RS200 slabs are unfaced, rock mineral wool slabs, available from us in a range of densities from 33 to 200 kg/m3. (33 kg/m3 are only available in pallet quantities)

Knauf Universal Earthwool slabs can be used in a wide range of thermal and acoustic insulation applications, in roofs, ceilings, loft conversions, walls and floors


Click on item(s) below for drop-down Price List

 

Knauf Earthwool Universal Slabs - 45kg - 200kg per cubic metre

Less popular product commonly available at selected depots. Knauf Earthwool® Building Slab RS45 100mm, 5 x 0.6x1.2m = 3.6m² - ranging from £4.63 to £4.85 per m²

1 plus packs @ £4.85 per m² / £3.49 per slab = £17.45 (£20.94 inc-VAT) per pack
19 plus packs @ £4.80 per m² / £3.46 per slab = £17.29 (£20.75 inc-VAT) per pack
37 plus packs @ £4.76 per m² / £3.43 per slab = £17.14 (£20.57 inc-VAT) per pack
56 plus packs @ £4.72 per m² / £3.40 per slab = £16.99 (£20.39 inc-VAT) per pack
75 plus packs @ £4.68 per m² / £3.37 per slab = £16.83 (£20.20 inc-VAT) per pack
94 plus packs @ £4.63 per m² / £3.34 per slab = £16.68 (£20.02 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Building Slab RS45 25mm, 20 x 0.6x1.2m = 14.4m² - ranging from £1.17 to £1.22 per m²

1 plus packs @ £1.22 per m² / £0.88 per slab = £17.57 (£21.08 inc-VAT) per pack
19 plus packs @ £1.21 per m² / £0.87 per slab = £17.42 (£20.90 inc-VAT) per pack
37 plus packs @ £1.20 per m² / £0.86 per slab = £17.26 (£20.71 inc-VAT) per pack
55 plus packs @ £1.19 per m² / £0.86 per slab = £17.11 (£20.53 inc-VAT) per pack
74 plus packs @ £1.18 per m² / £0.85 per slab = £16.95 (£20.34 inc-VAT) per pack
94 plus packs @ £1.17 per m² / £0.84 per slab = £16.80 (£20.16 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Building Slab RS45 30mm, 16 x 0.6x1.2m = 11.52m² - ranging from £1.50 to £1.57 per m²

1 plus packs @ £1.57 per m² / £1.13 per slab = £18.13 (£21.76 inc-VAT) per pack
19 plus packs @ £1.56 per m² / £1.12 per slab = £17.97 (£21.56 inc-VAT) per pack
38 plus packs @ £1.55 per m² / £1.11 per slab = £17.81 (£21.37 inc-VAT) per pack
58 plus packs @ £1.53 per m² / £1.10 per slab = £17.65 (£21.18 inc-VAT) per pack
78 plus packs @ £1.52 per m² / £1.09 per slab = £17.49 (£20.99 inc-VAT) per pack
98 plus packs @ £1.50 per m² / £1.08 per slab = £17.33 (£20.80 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Building Slab RS45 40mm, 12 x 0.6x1.2m = 8.64m² - ranging from £2.02 to £2.11 per m²

1 plus packs @ £2.11 per m² / £1.52 per slab = £18.23 (£21.88 inc-VAT) per pack
19 plus packs @ £2.09 per m² / £1.51 per slab = £18.07 (£21.68 inc-VAT) per pack
38 plus packs @ £2.07 per m² / £1.49 per slab = £17.91 (£21.49 inc-VAT) per pack
58 plus packs @ £2.05 per m² / £1.48 per slab = £17.75 (£21.30 inc-VAT) per pack
78 plus packs @ £2.04 per m² / £1.47 per slab = £17.59 (£21.11 inc-VAT) per pack
98 plus packs @ £2.02 per m² / £1.45 per slab = £17.43 (£20.92 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Building Slab RS45 50mm, 10 x 0.6x1.2m = 7.2m² - ranging from £2.33 to £2.44 per m²

1 plus packs @ £2.44 per m² / £1.76 per slab = £17.57 (£21.08 inc-VAT) per pack
19 plus packs @ £2.42 per m² / £1.74 per slab = £17.42 (£20.90 inc-VAT) per pack
37 plus packs @ £2.40 per m² / £1.73 per slab = £17.26 (£20.71 inc-VAT) per pack
55 plus packs @ £2.38 per m² / £1.71 per slab = £17.11 (£20.53 inc-VAT) per pack
74 plus packs @ £2.35 per m² / £1.70 per slab = £16.95 (£20.34 inc-VAT) per pack
94 plus packs @ £2.33 per m² / £1.68 per slab = £16.80 (£20.16 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Building Slab RS45 60mm, 8 x 0.6x1.2m = 5.76m² - ranging from £3.05 to £3.19 per m²

1 plus packs @ £3.19 per m² / £2.30 per slab = £18.39 (£22.07 inc-VAT) per pack
19 plus packs @ £3.16 per m² / £2.28 per slab = £18.23 (£21.88 inc-VAT) per pack
38 plus packs @ £3.14 per m² / £2.26 per slab = £18.07 (£21.68 inc-VAT) per pack
57 plus packs @ £3.11 per m² / £2.24 per slab = £17.91 (£21.49 inc-VAT) per pack
77 plus packs @ £3.08 per m² / £2.22 per slab = £17.75 (£21.30 inc-VAT) per pack
97 plus packs @ £3.05 per m² / £2.20 per slab = £17.58 (£21.10 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Building Slab RS45 75mm, 6 x 0.6x1.2m = 4.32m² - ranging from £3.51 to £3.67 per m²

1 plus packs @ £3.67 per m² / £2.64 per slab = £15.86 (£19.03 inc-VAT) per pack
20 plus packs @ £3.64 per m² / £2.62 per slab = £15.72 (£18.86 inc-VAT) per pack
41 plus packs @ £3.61 per m² / £2.60 per slab = £15.58 (£18.70 inc-VAT) per pack
61 plus packs @ £3.58 per m² / £2.58 per slab = £15.45 (£18.54 inc-VAT) per pack
83 plus packs @ £3.54 per m² / £2.55 per slab = £15.31 (£18.37 inc-VAT) per pack
104 plus packs @ £3.51 per m² / £2.53 per slab = £15.17 (£18.20 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Building Slab RS60 100mm, 4 x 0.6x1.2m = 2.88m² - ranging from £6.03 to £6.29 per m²

1 plus packs @ £6.29 per m² / £4.53 per slab = £18.11 (£21.73 inc-VAT) per pack
19 plus packs @ £6.24 per m² / £4.49 per slab = £17.96 (£21.55 inc-VAT) per pack
38 plus packs @ £6.18 per m² / £4.45 per slab = £17.81 (£21.37 inc-VAT) per pack
57 plus packs @ £6.13 per m² / £4.42 per slab = £17.66 (£21.19 inc-VAT) per pack
76 plus packs @ £6.08 per m² / £4.38 per slab = £17.51 (£21.01 inc-VAT) per pack
96 plus packs @ £6.03 per m² / £4.34 per slab = £17.36 (£20.83 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Building Slab RS60 25mm, 18 x 0.6x1.2m = 12.96m² - ranging from £1.64 to £1.71 per m²

1 plus packs @ £1.71 per m² / £1.23 per slab = £22.20 (£26.64 inc-VAT) per pack
16 plus packs @ £1.70 per m² / £1.22 per slab = £22.02 (£26.42 inc-VAT) per pack
32 plus packs @ £1.69 per m² / £1.21 per slab = £21.84 (£26.21 inc-VAT) per pack
48 plus packs @ £1.67 per m² / £1.20 per slab = £21.67 (£26.00 inc-VAT) per pack
65 plus packs @ £1.66 per m² / £1.19 per slab = £21.49 (£25.79 inc-VAT) per pack
81 plus packs @ £1.64 per m² / £1.18 per slab = £21.31 (£25.57 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Building Slab RS60 30mm, 14 x 0.6x1.2m = 10.08m² - ranging from £1.88 to £1.97 per m²

1 plus packs @ £1.97 per m² / £1.42 per slab = £19.83 (£23.80 inc-VAT) per pack
18 plus packs @ £1.95 per m² / £1.40 per slab = £19.65 (£23.58 inc-VAT) per pack
36 plus packs @ £1.93 per m² / £1.39 per slab = £19.48 (£23.38 inc-VAT) per pack
54 plus packs @ £1.92 per m² / £1.38 per slab = £19.31 (£23.17 inc-VAT) per pack
72 plus packs @ £1.90 per m² / £1.37 per slab = £19.14 (£22.97 inc-VAT) per pack
91 plus packs @ £1.88 per m² / £1.36 per slab = £18.97 (£22.76 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Building Slab RS60 40mm, 12 x 0.6x1.2m = 8.64m² - ranging from £2.49 to £2.60 per m²

1 plus packs @ £2.60 per m² / £1.87 per slab = £22.46 (£26.95 inc-VAT) per pack
16 plus packs @ £2.58 per m² / £1.86 per slab = £22.27 (£26.72 inc-VAT) per pack
31 plus packs @ £2.55 per m² / £1.84 per slab = £22.07 (£26.48 inc-VAT) per pack
47 plus packs @ £2.53 per m² / £1.82 per slab = £21.87 (£26.24 inc-VAT) per pack
64 plus packs @ £2.51 per m² / £1.81 per slab = £21.68 (£26.02 inc-VAT) per pack
80 plus packs @ £2.49 per m² / £1.79 per slab = £21.48 (£25.78 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Building Slab RS60 50mm, 9 x 0.6x1.2m = 6.48m² - ranging from £3.00 to £3.13 per m²

1 plus packs @ £3.13 per m² / £2.26 per slab = £20.30 (£24.36 inc-VAT) per pack
17 plus packs @ £3.11 per m² / £2.24 per slab = £20.13 (£24.16 inc-VAT) per pack
34 plus packs @ £3.08 per m² / £2.22 per slab = £19.96 (£23.95 inc-VAT) per pack
51 plus packs @ £3.05 per m² / £2.20 per slab = £19.79 (£23.75 inc-VAT) per pack
68 plus packs @ £3.03 per m² / £2.18 per slab = £19.62 (£23.54 inc-VAT) per pack
86 plus packs @ £3.00 per m² / £2.16 per slab = £19.45 (£23.34 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Building Slab RS60 60mm, 7 x 0.6x1.2m = 5.04m² - ranging from £3.73 to £3.90 per m²

1 plus packs @ £3.90 per m² / £2.81 per slab = £19.65 (£23.58 inc-VAT) per pack
18 plus packs @ £3.87 per m² / £2.78 per slab = £19.48 (£23.38 inc-VAT) per pack
36 plus packs @ £3.83 per m² / £2.76 per slab = £19.31 (£23.17 inc-VAT) per pack
54 plus packs @ £3.80 per m² / £2.73 per slab = £19.14 (£22.97 inc-VAT) per pack
73 plus packs @ £3.76 per m² / £2.71 per slab = £18.97 (£22.76 inc-VAT) per pack
91 plus packs @ £3.73 per m² / £2.69 per slab = £18.80 (£22.56 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Building Slab RS60 75mm, 6 x 0.6x1.2m = 4.32m² - ranging from £4.49 to £4.68 per m²

1 plus packs @ £4.68 per m² / £3.37 per slab = £20.22 (£24.26 inc-VAT) per pack
17 plus packs @ £4.64 per m² / £3.34 per slab = £20.05 (£24.06 inc-VAT) per pack
34 plus packs @ £4.60 per m² / £3.32 per slab = £19.89 (£23.87 inc-VAT) per pack
51 plus packs @ £4.56 per m² / £3.29 per slab = £19.72 (£23.66 inc-VAT) per pack
68 plus packs @ £4.53 per m² / £3.26 per slab = £19.55 (£23.46 inc-VAT) per pack
86 plus packs @ £4.49 per m² / £3.23 per slab = £19.38 (£23.26 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS100 100mm, 3 x 0.6x1.2m = 2.16m² - ranging from £12.67 to £13.26 per m²

1 plus packs @ £13.26 per m² / £9.55 per slab = £28.64 (£34.37 inc-VAT) per pack
12 plus packs @ £13.14 per m² / £9.46 per slab = £28.38 (£34.06 inc-VAT) per pack
24 plus packs @ £13.02 per m² / £9.38 per slab = £28.13 (£33.76 inc-VAT) per pack
37 plus packs @ £12.91 per m² / £9.29 per slab = £27.88 (£33.46 inc-VAT) per pack
49 plus packs @ £12.79 per m² / £9.21 per slab = £27.62 (£33.14 inc-VAT) per pack
62 plus packs @ £12.67 per m² / £9.12 per slab = £27.37 (£32.84 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS100 25mm, 12 x 0.6x1.2m = 8.64m² - ranging from £3.14 to £3.29 per m²

1 plus packs @ £3.29 per m² / £2.37 per slab = £28.42 (£34.10 inc-VAT) per pack
12 plus packs @ £3.26 per m² / £2.35 per slab = £28.16 (£33.79 inc-VAT) per pack
25 plus packs @ £3.23 per m² / £2.33 per slab = £27.91 (£33.49 inc-VAT) per pack
37 plus packs @ £3.20 per m² / £2.31 per slab = £27.66 (£33.19 inc-VAT) per pack
49 plus packs @ £3.17 per m² / £2.28 per slab = £27.41 (£32.89 inc-VAT) per pack
62 plus packs @ £3.14 per m² / £2.26 per slab = £27.16 (£32.59 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS100 30mm, 10 x 0.6x1.2m = 7.2m² - ranging from £3.79 to £3.97 per m²

1 plus packs @ £3.97 per m² / £2.86 per slab = £28.56 (£34.27 inc-VAT) per pack
12 plus packs @ £3.93 per m² / £2.83 per slab = £28.31 (£33.97 inc-VAT) per pack
24 plus packs @ £3.90 per m² / £2.81 per slab = £28.06 (£33.67 inc-VAT) per pack
37 plus packs @ £3.86 per m² / £2.78 per slab = £27.80 (£33.36 inc-VAT) per pack
49 plus packs @ £3.83 per m² / £2.76 per slab = £27.55 (£33.06 inc-VAT) per pack
62 plus packs @ £3.79 per m² / £2.73 per slab = £27.30 (£32.76 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS100 40mm, 7 x 0.6x1.2m = 5.04m² - ranging from £5.10 to £5.34 per m²

1 plus packs @ £5.34 per m² / £3.84 per slab = £26.89 (£32.27 inc-VAT) per pack
13 plus packs @ £5.29 per m² / £3.81 per slab = £26.65 (£31.98 inc-VAT) per pack
26 plus packs @ £5.24 per m² / £3.77 per slab = £26.41 (£31.69 inc-VAT) per pack
39 plus packs @ £5.19 per m² / £3.74 per slab = £26.17 (£31.40 inc-VAT) per pack
52 plus packs @ £5.14 per m² / £3.70 per slab = £25.93 (£31.12 inc-VAT) per pack
66 plus packs @ £5.10 per m² / £3.67 per slab = £25.70 (£30.84 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS100 50mm, 6 x 0.6x1.2m = 4.32m² - ranging from £6.37 to £6.67 per m²

1 plus packs @ £6.67 per m² / £4.80 per slab = £28.81 (£34.57 inc-VAT) per pack
12 plus packs @ £6.61 per m² / £4.76 per slab = £28.55 (£34.26 inc-VAT) per pack
24 plus packs @ £6.55 per m² / £4.72 per slab = £28.30 (£33.96 inc-VAT) per pack
36 plus packs @ £6.49 per m² / £4.67 per slab = £28.04 (£33.65 inc-VAT) per pack
49 plus packs @ £6.43 per m² / £4.63 per slab = £27.79 (£33.35 inc-VAT) per pack
61 plus packs @ £6.37 per m² / £4.59 per slab = £27.53 (£33.04 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS100 60mm, 5 x 0.6x1.2m = 3.6m² - ranging from £7.64 to £7.99 per m²

1 plus packs @ £7.99 per m² / £5.75 per slab = £28.77 (£34.52 inc-VAT) per pack
12 plus packs @ £7.92 per m² / £5.70 per slab = £28.51 (£34.21 inc-VAT) per pack
24 plus packs @ £7.85 per m² / £5.65 per slab = £28.26 (£33.91 inc-VAT) per pack
36 plus packs @ £7.78 per m² / £5.60 per slab = £28.00 (£33.60 inc-VAT) per pack
49 plus packs @ £7.71 per m² / £5.55 per slab = £27.75 (£33.30 inc-VAT) per pack
62 plus packs @ £7.64 per m² / £5.50 per slab = £27.49 (£32.99 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS100 75mm, 4 x 0.6x1.2m = 2.88m² - ranging from £9.54 to £9.98 per m²

1 plus packs @ £9.98 per m² / £7.19 per slab = £28.74 (£34.49 inc-VAT) per pack
12 plus packs @ £9.89 per m² / £7.12 per slab = £28.49 (£34.19 inc-VAT) per pack
24 plus packs @ £9.80 per m² / £7.06 per slab = £28.23 (£33.88 inc-VAT) per pack
36 plus packs @ £9.72 per m² / £7.00 per slab = £27.98 (£33.58 inc-VAT) per pack
49 plus packs @ £9.63 per m² / £6.93 per slab = £27.72 (£33.26 inc-VAT) per pack
62 plus packs @ £9.54 per m² / £6.87 per slab = £27.47 (£32.96 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS140 100mm, 2 x 0.6x1.2m = 1.44m² - ranging from £17.60 to £18.42 per m²

1 plus packs @ £18.42 per m² / £13.27 per slab = £26.53 (£31.84 inc-VAT) per pack
13 plus packs @ £18.26 per m² / £13.15 per slab = £26.29 (£31.55 inc-VAT) per pack
26 plus packs @ £18.10 per m² / £13.03 per slab = £26.06 (£31.27 inc-VAT) per pack
39 plus packs @ £17.93 per m² / £12.91 per slab = £25.82 (£30.98 inc-VAT) per pack
53 plus packs @ £17.77 per m² / £12.80 per slab = £25.59 (£30.71 inc-VAT) per pack
67 plus packs @ £17.60 per m² / £12.68 per slab = £25.35 (£30.42 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS140 30mm, 7 x 0.6x1.2m = 5.04m² - ranging from £5.34 to £5.58 per m²

1 plus packs @ £5.58 per m² / £4.02 per slab = £28.14 (£33.77 inc-VAT) per pack
13 plus packs @ £5.53 per m² / £3.98 per slab = £27.89 (£33.47 inc-VAT) per pack
25 plus packs @ £5.48 per m² / £3.95 per slab = £27.64 (£33.17 inc-VAT) per pack
37 plus packs @ £5.43 per m² / £3.91 per slab = £27.39 (£32.87 inc-VAT) per pack
50 plus packs @ £5.38 per m² / £3.88 per slab = £27.14 (£32.57 inc-VAT) per pack
63 plus packs @ £5.34 per m² / £3.84 per slab = £26.89 (£32.27 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS140 40mm, 5 x 0.6x1.2m = 3.6m² - ranging from £7.03 to £7.36 per m²

1 plus packs @ £7.36 per m² / £5.30 per slab = £26.49 (£31.79 inc-VAT) per pack
13 plus packs @ £7.29 per m² / £5.25 per slab = £26.25 (£31.50 inc-VAT) per pack
26 plus packs @ £7.23 per m² / £5.20 per slab = £26.02 (£31.22 inc-VAT) per pack
40 plus packs @ £7.16 per m² / £5.16 per slab = £25.78 (£30.94 inc-VAT) per pack
53 plus packs @ £7.10 per m² / £5.11 per slab = £25.55 (£30.66 inc-VAT) per pack
67 plus packs @ £7.03 per m² / £5.06 per slab = £25.32 (£30.38 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS140 50mm, 4 x 0.6x1.2m = 2.88m² - ranging from £8.85 to £9.26 per m²

1 plus packs @ £9.26 per m² / £6.67 per slab = £26.66 (£31.99 inc-VAT) per pack
13 plus packs @ £9.17 per m² / £6.61 per slab = £26.42 (£31.70 inc-VAT) per pack
26 plus packs @ £9.09 per m² / £6.55 per slab = £26.19 (£31.43 inc-VAT) per pack
39 plus packs @ £9.01 per m² / £6.49 per slab = £25.95 (£31.14 inc-VAT) per pack
53 plus packs @ £8.93 per m² / £6.43 per slab = £25.72 (£30.86 inc-VAT) per pack
66 plus packs @ £8.85 per m² / £6.37 per slab = £25.48 (£30.58 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS140 75mm, 3 x 0.6x1.2m = 2.16m² - ranging from £14.47 to £15.14 per m²

1 plus packs @ £15.14 per m² / £10.90 per slab = £32.71 (£39.25 inc-VAT) per pack
11 plus packs @ £15.01 per m² / £10.81 per slab = £32.42 (£38.90 inc-VAT) per pack
21 plus packs @ £14.88 per m² / £10.71 per slab = £32.13 (£38.56 inc-VAT) per pack
32 plus packs @ £14.74 per m² / £10.61 per slab = £31.84 (£38.21 inc-VAT) per pack
43 plus packs @ £14.61 per m² / £10.52 per slab = £31.55 (£37.86 inc-VAT) per pack
54 plus packs @ £14.47 per m² / £10.42 per slab = £31.26 (£37.51 inc-VAT) per pack

(See Product Availability Legend at the foot of this page)


Knauf Earthwool Universal Slabs - 33kg per cubic metre. Including Flexi-Slabs.

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS33 100mm, 12 x (5 x 0.6x1.2m) = 43.2m² - ranging from £5.95 to £6.23 per m²

1 x pallet @ £6.23 per m² / £4.48 per slab = £268.98 (£322.78 inc-VAT)
2 x pallets @ £6.17 per m² / £4.44 per slab = £266.60 (£319.92 inc-VAT)
3 x pallets @ £6.12 per m² / £4.40 per slab = £264.22 (£317.06 inc-VAT)
4 x pallets @ £6.06 per m² / £4.36 per slab = £261.84 (£314.21 inc-VAT)
5 x pallets @ £6.01 per m² / £4.32 per slab = £259.46 (£311.35 inc-VAT)
6 x pallets @ £5.95 per m² / £4.28 per slab = £257.08 (£308.50 inc-VAT)

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS33 40mm, 12 x (12 x 0.6x1.2m) = 103.68m² - ranging from £2.54 to £2.66 per m²

1 x pallet @ £2.66 per m² / £1.91 per slab = £275.33 (£330.40 inc-VAT)
2 x pallets @ £2.63 per m² / £1.90 per slab = £272.89 (£327.47 inc-VAT)
3 x pallets @ £2.61 per m² / £1.88 per slab = £270.45 (£324.54 inc-VAT)
4 x pallets @ £2.59 per m² / £1.86 per slab = £268.02 (£321.62 inc-VAT)
5 x pallets @ £2.56 per m² / £1.84 per slab = £265.58 (£318.70 inc-VAT)
6 x pallets @ £2.54 per m² / £1.83 per slab = £263.14 (£315.77 inc-VAT)

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS33 50mm, 12 x (10 x 0.6x1.2m) = 86.4m² - ranging from £3.26 to £3.41 per m²

1 x pallet @ £3.41 per m² / £2.46 per slab = £294.85 (£353.82 inc-VAT)
2 x pallets @ £3.38 per m² / £2.44 per slab = £292.24 (£350.69 inc-VAT)
3 x pallets @ £3.35 per m² / £2.41 per slab = £289.64 (£347.57 inc-VAT)
4 x pallets @ £3.32 per m² / £2.39 per slab = £287.03 (£344.44 inc-VAT)
5 x pallets @ £3.29 per m² / £2.37 per slab = £284.42 (£341.30 inc-VAT)
6 x pallets @ £3.26 per m² / £2.35 per slab = £281.81 (£338.17 inc-VAT)

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS33 60mm, 12 x (8 x 0.6x1.2m) = 69.12m² - ranging from £4.02 to £4.20 per m²

1 x pallet @ £4.20 per m² / £3.03 per slab = £290.56 (£348.67 inc-VAT)
2 x pallets @ £4.17 per m² / £3.00 per slab = £287.99 (£345.59 inc-VAT)
3 x pallets @ £4.13 per m² / £2.97 per slab = £285.42 (£342.50 inc-VAT)
4 x pallets @ £4.09 per m² / £2.95 per slab = £282.84 (£339.41 inc-VAT)
5 x pallets @ £4.05 per m² / £2.92 per slab = £280.27 (£336.32 inc-VAT)
6 x pallets @ £4.02 per m² / £2.89 per slab = £277.70 (£333.24 inc-VAT)

Rarely requested product sourced directly from manufacturer. Knauf Earthwool® Building Slab RS33 70mm, 12 x (8 x 0.6x1.2m) = 69.12m² - ranging from £4.56 to £4.77 per m²

1 x pallet @ £4.77 per m² / £3.43 per slab = £329.61 (£395.53 inc-VAT)
2 x pallets @ £4.73 per m² / £3.40 per slab = £326.69 (£392.03 inc-VAT)
3 x pallets @ £4.68 per m² / £3.37 per slab = £323.78 (£388.54 inc-VAT)
4 x pallets @ £4.64 per m² / £3.34 per slab = £320.86 (£385.03 inc-VAT)
5 x pallets @ £4.60 per m² / £3.31 per slab = £317.94 (£381.53 inc-VAT)
6 x pallets @ £4.56 per m² / £3.28 per slab = £315.03 (£378.04 inc-VAT)

Less popular product commonly available at selected depots. Knauf Earthwool® Flexible Slab 100mm, 5 x 0.6x1.2m = 3.6m² - ranging from £5.86 to £6.12 per m²

1 plus packs @ £6.12 per m² / £4.40 per slab = £22.02 (£26.42 inc-VAT) per pack
14 plus packs @ £6.07 per m² / £4.37 per slab = £21.84 (£26.21 inc-VAT) per pack
29 plus packs @ £6.01 per m² / £4.33 per slab = £21.65 (£25.98 inc-VAT) per pack
43 plus packs @ £5.96 per m² / £4.29 per slab = £21.47 (£25.76 inc-VAT) per pack
58 plus packs @ £5.91 per m² / £4.26 per slab = £21.28 (£25.54 inc-VAT) per pack
73 plus packs @ £5.86 per m² / £4.22 per slab = £21.10 (£25.32 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Flexible Slab 140mm, 3 x 0.6x1.2m = 2.16m² - ranging from £8.22 to £8.58 per m²

1 plus packs @ £8.58 per m² / £6.18 per slab = £18.54 (£22.25 inc-VAT) per pack
17 plus packs @ £8.51 per m² / £6.13 per slab = £18.38 (£22.06 inc-VAT) per pack
34 plus packs @ £8.44 per m² / £6.08 per slab = £18.23 (£21.88 inc-VAT) per pack
51 plus packs @ £8.37 per m² / £6.02 per slab = £18.07 (£21.68 inc-VAT) per pack
68 plus packs @ £8.29 per m² / £5.97 per slab = £17.91 (£21.49 inc-VAT) per pack
86 plus packs @ £8.22 per m² / £5.92 per slab = £17.76 (£21.31 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Flexible Slab 50mm, 10 x 0.6x1.2m = 7.2m² - ranging from £2.92 to £3.04 per m²

1 plus packs @ £3.04 per m² / £2.19 per slab = £21.92 (£26.30 inc-VAT) per pack
14 plus packs @ £3.02 per m² / £2.17 per slab = £21.74 (£26.09 inc-VAT) per pack
28 plus packs @ £2.99 per m² / £2.16 per slab = £21.55 (£25.86 inc-VAT) per pack
43 plus packs @ £2.97 per m² / £2.14 per slab = £21.37 (£25.64 inc-VAT) per pack
57 plus packs @ £2.94 per m² / £2.12 per slab = £21.18 (£25.42 inc-VAT) per pack
72 plus packs @ £2.92 per m² / £2.10 per slab = £21.00 (£25.20 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Flexible Slab 60mm, 8 x 0.6x1.2m = 5.76m² - ranging from £4.01 to £4.19 per m²

1 plus packs @ £4.19 per m² / £3.02 per slab = £24.15 (£28.98 inc-VAT) per pack
15 plus packs @ £4.16 per m² / £2.99 per slab = £23.94 (£28.73 inc-VAT) per pack
29 plus packs @ £4.12 per m² / £2.97 per slab = £23.73 (£28.48 inc-VAT) per pack
43 plus packs @ £4.08 per m² / £2.94 per slab = £23.51 (£28.21 inc-VAT) per pack
58 plus packs @ £4.05 per m² / £2.91 per slab = £23.30 (£27.96 inc-VAT) per pack
73 plus packs @ £4.01 per m² / £2.89 per slab = £23.08 (£27.70 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Flexible Slab 70mm, 8 x 0.6x1.2m = 5.76m² - ranging from £4.18 to £4.37 per m²

1 plus packs @ £4.37 per m² / £3.15 per slab = £25.16 (£30.19 inc-VAT) per pack
13 plus packs @ £4.33 per m² / £3.12 per slab = £24.95 (£29.94 inc-VAT) per pack
25 plus packs @ £4.30 per m² / £3.09 per slab = £24.74 (£29.69 inc-VAT) per pack
38 plus packs @ £4.26 per m² / £3.07 per slab = £24.53 (£29.44 inc-VAT) per pack
51 plus packs @ £4.22 per m² / £3.04 per slab = £24.32 (£29.18 inc-VAT) per pack
64 plus packs @ £4.18 per m² / £3.01 per slab = £24.10 (£28.92 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® Flexible Slab 90mm, 5 x 0.6x1.2m = 3.6m² - ranging from £5.16 to £5.38 per m²

1 plus packs @ £5.38 per m² / £3.87 per slab = £19.37 (£23.24 inc-VAT) per pack
16 plus packs @ £5.34 per m² / £3.84 per slab = £19.21 (£23.05 inc-VAT) per pack
32 plus packs @ £5.29 per m² / £3.81 per slab = £19.04 (£22.85 inc-VAT) per pack
49 plus packs @ £5.24 per m² / £3.78 per slab = £18.88 (£22.66 inc-VAT) per pack
66 plus packs @ £5.20 per m² / £3.74 per slab = £18.72 (£22.46 inc-VAT) per pack
83 plus packs @ £5.16 per m² / £3.71 per slab = £18.56 (£22.27 inc-VAT) per pack

(See Product Availability Legend at the foot of this page)


Knauf Earthwool Cavity Slabs - 33kg per cubic metre.

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab (Rock) 50mm, 10 x 0.455x1.2m = 5.46m² - ranging from £3.59 to £3.75 per m²

1 plus packs @ £3.75 per m² / £2.05 per slab = £20.49 (£24.59 inc-VAT) per pack
11 plus packs @ £3.72 per m² / £2.03 per slab = £20.31 (£24.37 inc-VAT) per pack
21 plus packs @ £3.69 per m² / £2.01 per slab = £20.13 (£24.16 inc-VAT) per pack
32 plus packs @ £3.65 per m² / £1.99 per slab = £19.94 (£23.93 inc-VAT) per pack
42 plus packs @ £3.62 per m² / £1.98 per slab = £19.76 (£23.71 inc-VAT) per pack
53 plus packs @ £3.59 per m² / £1.96 per slab = £19.58 (£23.50 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab (Rock) 65mm, 8 x 0.455x1.2m = 4.37m² - ranging from £4.13 to £4.32 per m²

1 plus packs @ £4.32 per m² / £2.36 per slab = £18.87 (£22.64 inc-VAT) per pack
12 plus packs @ £4.28 per m² / £2.34 per slab = £18.70 (£22.44 inc-VAT) per pack
23 plus packs @ £4.24 per m² / £2.32 per slab = £18.53 (£22.24 inc-VAT) per pack
34 plus packs @ £4.20 per m² / £2.30 per slab = £18.37 (£22.04 inc-VAT) per pack
46 plus packs @ £4.16 per m² / £2.28 per slab = £18.20 (£21.84 inc-VAT) per pack
58 plus packs @ £4.13 per m² / £2.25 per slab = £18.03 (£21.64 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab (Rock) 75mm, 7 x 0.455x1.2m = 3.82m² - ranging from £4.76 to £4.98 per m²

1 plus packs @ £4.98 per m² / £2.72 per slab = £19.04 (£22.85 inc-VAT) per pack
11 plus packs @ £4.94 per m² / £2.70 per slab = £18.87 (£22.64 inc-VAT) per pack
23 plus packs @ £4.90 per m² / £2.67 per slab = £18.70 (£22.44 inc-VAT) per pack
34 plus packs @ £4.85 per m² / £2.65 per slab = £18.54 (£22.25 inc-VAT) per pack
46 plus packs @ £4.81 per m² / £2.62 per slab = £18.37 (£22.04 inc-VAT) per pack
57 plus packs @ £4.76 per m² / £2.60 per slab = £18.20 (£21.84 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab (Rock) 85mm, 6 x 0.455x1.2m = 3.28m² - ranging from £5.37 to £5.62 per m²

1 plus packs @ £5.62 per m² / £3.07 per slab = £18.43 (£22.12 inc-VAT) per pack
12 plus packs @ £5.57 per m² / £3.04 per slab = £18.26 (£21.91 inc-VAT) per pack
23 plus packs @ £5.52 per m² / £3.02 per slab = £18.10 (£21.72 inc-VAT) per pack
35 plus packs @ £5.47 per m² / £2.99 per slab = £17.94 (£21.53 inc-VAT) per pack
47 plus packs @ £5.42 per m² / £2.96 per slab = £17.77 (£21.32 inc-VAT) per pack
59 plus packs @ £5.37 per m² / £2.94 per slab = £17.61 (£21.13 inc-VAT) per pack

(See Product Availability Legend at the foot of this page)


Knauf Glasswool Cavity Slabs - Thermal Conductivity 0.032 to 0.037W/mK

Definition: W/mK = watts per meter kelvin (lower is better)

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 32 Ultimate 100mm, 4 x 0.455x1.2m = 2.18m² - ranging from £11.29 to £11.81 per m²

1 plus packs @ £11.81 per m² / £6.44 per slab = £25.75 (£30.90 inc-VAT) per pack
6 plus packs @ £11.71 per m² / £6.38 per slab = £25.52 (£30.62 inc-VAT) per pack
11 plus packs @ £11.60 per m² / £6.32 per slab = £25.29 (£30.35 inc-VAT) per pack
16 plus packs @ £11.50 per m² / £6.27 per slab = £25.06 (£30.07 inc-VAT) per pack
22 plus packs @ £11.39 per m² / £6.21 per slab = £24.84 (£29.81 inc-VAT) per pack
27 plus packs @ £11.29 per m² / £6.15 per slab = £24.61 (£29.53 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 32 Ultimate 65mm, 10 x 0.455x1.2m = 5.46m² - ranging from £7.50 to £7.84 per m²

1 plus packs @ £7.84 per m² / £4.28 per slab = £42.82 (£51.38 inc-VAT) per pack
5 plus packs @ £7.77 per m² / £4.24 per slab = £42.44 (£50.93 inc-VAT) per pack
10 plus packs @ £7.71 per m² / £4.21 per slab = £42.07 (£50.48 inc-VAT) per pack
15 plus packs @ £7.64 per m² / £4.17 per slab = £41.69 (£50.03 inc-VAT) per pack
20 plus packs @ £7.57 per m² / £4.13 per slab = £41.31 (£49.57 inc-VAT) per pack
24 plus packs @ £7.50 per m² / £4.09 per slab = £40.93 (£49.12 inc-VAT) per pack

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 £8.64 to £9.04 per m²

1 plus packs @ £9.04 per m² / £4.94 per slab = £29.66 (£35.59 inc-VAT) per pack
6 plus packs @ £8.96 per m² / £4.90 per slab = £29.39 (£35.27 inc-VAT) per pack
11 plus packs @ £8.88 per m² / £4.86 per slab = £29.13 (£34.96 inc-VAT) per pack
16 plus packs @ £8.80 per m² / £4.81 per slab = £28.87 (£34.64 inc-VAT) per pack
21 plus packs @ £8.72 per m² / £4.77 per slab = £28.61 (£34.33 inc-VAT) per pack
26 plus packs @ £8.64 per m² / £4.72 per slab = £28.34 (£34.01 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 32 Ultimate 85mm, 4 x 0.455x1.2m = 2.18m² - ranging from £9.78 to £10.23 per m²

1 plus packs @ £10.23 per m² / £5.58 per slab = £22.30 (£26.76 inc-VAT) per pack
5 plus packs @ £10.14 per m² / £5.53 per slab = £22.10 (£26.52 inc-VAT) per pack
9 plus packs @ £10.05 per m² / £5.48 per slab = £21.90 (£26.28 inc-VAT) per pack
14 plus packs @ £9.96 per m² / £5.43 per slab = £21.71 (£26.05 inc-VAT) per pack
19 plus packs @ £9.87 per m² / £5.38 per slab = £21.51 (£25.81 inc-VAT) per pack
24 plus packs @ £9.78 per m² / £5.33 per slab = £21.31 (£25.57 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 £8.54 to £8.94 per m²

1 plus packs @ £8.94 per m² / £4.88 per slab = £39.07 (£46.88 inc-VAT) per pack
6 plus packs @ £8.86 per m² / £4.84 per slab = £38.72 (£46.46 inc-VAT) per pack
11 plus packs @ £8.78 per m² / £4.80 per slab = £38.37 (£46.04 inc-VAT) per pack
16 plus packs @ £8.70 per m² / £4.75 per slab = £38.03 (£45.64 inc-VAT) per pack
21 plus packs @ £8.62 per m² / £4.71 per slab = £37.68 (£45.22 inc-VAT) per pack
27 plus packs @ £8.54 per m² / £4.67 per slab = £37.34 (£44.81 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 £6.55 to £6.85 per m²

1 plus packs @ £6.85 per m² / £3.74 per slab = £37.39 (£44.87 inc-VAT) per pack
6 plus packs @ £6.79 per m² / £3.71 per slab = £37.06 (£44.47 inc-VAT) per pack
11 plus packs @ £6.73 per m² / £3.67 per slab = £36.73 (£44.08 inc-VAT) per pack
17 plus packs @ £6.67 per m² / £3.64 per slab = £36.40 (£43.68 inc-VAT) per pack
22 plus packs @ £6.61 per m² / £3.61 per slab = £36.07 (£43.28 inc-VAT) per pack
28 plus packs @ £6.55 per m² / £3.57 per slab = £35.74 (£42.89 inc-VAT) per pack

Less popular product commonly available at selected depots. Knauf Earthwool® DriTherm Cavity Slab 37 Standard 100mm, 8 x 0.455x1.2m = 4.37m² - ranging from £4.92 to £5.14 per m²

1 plus packs @ £5.14 per m² / £2.81 per slab = £22.47 (£26.96 inc-VAT) per pack
6 plus packs @ £5.10 per m² / £2.78 per slab = £22.27 (£26.72 inc-VAT) per pack
12 plus packs @ £5.05 per m² / £2.76 per slab = £22.08 (£26.50 inc-VAT) per pack
18 plus packs @ £5.01 per m² / £2.74 per slab = £21.88 (£26.26 inc-VAT) per pack
24 plus packs @ £4.96 per m² / £2.71 per slab = £21.68 (£26.02 inc-VAT) per pack
31 plus packs @ £4.92 per m² / £2.69 per slab = £21.48 (£25.78 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 £6.16 to £6.44 per m²

1 plus packs @ £6.44 per m² / £3.52 per slab = £21.13 (£25.36 inc-VAT) per pack
6 plus packs @ £6.38 per m² / £3.49 per slab = £20.94 (£25.13 inc-VAT) per pack
12 plus packs @ £6.33 per m² / £3.46 per slab = £20.76 (£24.91 inc-VAT) per pack
18 plus packs @ £6.27 per m² / £3.43 per slab = £20.57 (£24.68 inc-VAT) per pack
24 plus packs @ £6.21 per m² / £3.40 per slab = £20.38 (£24.46 inc-VAT) per pack
30 plus packs @ £6.16 per m² / £3.37 per slab = £20.20 (£24.24 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 £3.07 to £3.21 per m²

1 plus packs @ £3.21 per m² / £1.75 per slab = £21.03 (£25.24 inc-VAT) per pack
8 plus packs @ £3.18 per m² / £1.74 per slab = £20.84 (£25.01 inc-VAT) per pack
15 plus packs @ £3.15 per m² / £1.72 per slab = £20.65 (£24.78 inc-VAT) per pack
22 plus packs @ £3.13 per m² / £1.71 per slab = £20.47 (£24.56 inc-VAT) per pack
30 plus packs @ £3.10 per m² / £1.69 per slab = £20.28 (£24.34 inc-VAT) per pack
37 plus packs @ £3.07 per m² / £1.68 per slab = £20.10 (£24.12 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 £3.53 to £3.70 per m²

1 plus packs @ £3.70 per m² / £2.02 per slab = £20.18 (£24.22 inc-VAT) per pack
7 plus packs @ £3.66 per m² / £2.00 per slab = £20.00 (£24.00 inc-VAT) per pack
13 plus packs @ £3.63 per m² / £1.98 per slab = £19.82 (£23.78 inc-VAT) per pack
19 plus packs @ £3.60 per m² / £1.96 per slab = £19.64 (£23.57 inc-VAT) per pack
26 plus packs @ £3.57 per m² / £1.95 per slab = £19.47 (£23.36 inc-VAT) per pack
32 plus packs @ £3.53 per m² / £1.93 per slab = £19.29 (£23.15 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 £3.74 to £3.91 per m²

1 plus packs @ £3.91 per m² / £2.14 per slab = £17.09 (£20.51 inc-VAT) per pack
6 plus packs @ £3.88 per m² / £2.12 per slab = £16.94 (£20.33 inc-VAT) per pack
12 plus packs @ £3.84 per m² / £2.10 per slab = £16.79 (£20.15 inc-VAT) per pack
18 plus packs @ £3.81 per m² / £2.08 per slab = £16.64 (£19.97 inc-VAT) per pack
24 plus packs @ £3.77 per m² / £2.06 per slab = £16.49 (£19.79 inc-VAT) per pack
31 plus packs @ £3.74 per m² / £2.04 per slab = £16.33 (£19.60 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 £4.22 to £4.42 per m²

1 plus packs @ £4.42 per m² / £2.41 per slab = £19.31 (£23.17 inc-VAT) per pack
6 plus packs @ £4.38 per m² / £2.39 per slab = £19.14 (£22.97 inc-VAT) per pack
11 plus packs @ £4.34 per m² / £2.37 per slab = £18.97 (£22.76 inc-VAT) per pack
16 plus packs @ £4.30 per m² / £2.35 per slab = £18.80 (£22.56 inc-VAT) per pack
22 plus packs @ £4.26 per m² / £2.33 per slab = £18.63 (£22.36 inc-VAT) per pack
27 plus packs @ £4.22 per m² / £2.31 per slab = £18.46 (£22.15 inc-VAT) per pack


(See Product Availability Legend at the foot of this page)


Product Description

Knauf Earthwool Universal (previously Rocksilk) Slabs Knauf Rocksilk Universal Slab

Earthwool is the new mineral wool brand from Knauf Insulation, adding the benefits of ECOSE Technology - a revolutionary bio-based binder technology – to create a new kind of mineral wool insulation that is naturally brown.

It offers significant improvements in terms of feel, handling and environmental performance, while still delivering the outstanding performance you expect from our traditional mineral wool Knauf Universal slab products offer a wide range of benefits, and can be used in an equally wide range of applications.

Knauf Universal rock mineral wool slabs offer exceptional fire performance characteristics, as well as excellent thermal and acoustic properties rock mineral wool is made mainly from volcanic rock, typically basalt and/or dolomite.

An increasing proportion is now recycled material from slag, a waste product from blast furnaces. The materials are melted and then spun into fine fibres. A resin is used to bind the fibres together to form a mat of insulation.

Ecose™ TechnologyKnauf Earthwool Rolls and Slabs

Knauf Insulation mineral wool products benefit from a formaldehyde-free binder made from rapidly renewable bio-based materials instead of petroleum-based chemicals which is up to 70% less energy intensive.

The technology has been developed for Knauf Insulation's glass and rock mineral wool products, enhancing their environmental credentials without affecting the thermal, acoustic or fire performance.

Insulation products made with ECOSE Technology contain no dye or artificial colours, and the colour is completely natural.


Product Benefits

Knauf Earthwool Main Characteristics
  • Available in the form of slabs, rolls and mattresses

  • Short fibre - compressive strength

  • Suitable for temperatures up to 850°C

  • Non-combustible

  • Denser than glass mineral wool.

  • High compressive strength

  • Commonly used for

  • Sound insulation for floors and walls

  • Thermal insulation of flat roofs, rainscreen façades and external wall insulation

  • Fire protection, including smoke and fire barriers

  • High temperature applications


Product Details

Knauf Universal Slab Uses

Rocksilk slabs fitted to wallFor a wide range of thermal and acoustic insulation applications in buildings, building services and industry

Description

Universal Slabs are unfaced, rock mineral wool slabs, available in a range of densities from 33 to 200 kg/m3. The standard product is supplied unfaced, but slabs can also be manufactured with a factory applied foil or tissue facing and are also available with a water repellent additive.

Application

Universal Slabs are used for a wide range of thermal and acoustic insulation applications in buildings, building services and industry. Standards Universal Slabs are made from non-combustible inorganic rock wool, defined as mineral wool in BS 3533: 1981 and are manufactured to a Quality Assurance system which complies with BS EN ISO 9001:2000.

Durability

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

Environmental

Universal Slabs are free from CFCs, HCFCs and any other material with ozone depletion potential in their manufacture and content and represent no known threat to the environment. Universal Slab’s manufacture has a low impact on the environment and is classified as Zero ODP and Zero GWP.

Fire PerformanceRocksilk slab installed above ceiling

Universal Slabs are classified as non-combustible to BS 476: Part 4: 1970 (1984) and Euroclass A1, Class 1 Surface Spread of Flame to BS 476: Part 7 1997 and Class ‘O’ to the Building Regulations.

Moisture Resistance

Universal Slabs are non-wicking when tested to BS 2972: 1989: Section 12. When exposed to 90% relative humidity at 20°C, Universal Slabs absorb less than 0.004% of moisture.

Vapour Resistance

Universal Slabs have a vapour resistance of 7.00 MN.s/g.

Operating Temperatures

Universal Slabs can be used up to continuous operating temperatures of 850°C. This is dependent on density.

Handling and Storage

Universal Slabs are easy to handle and install, being lightweight and easy to cut to size.

Universal Slabs are supplied in packs in Supakube pallets.

For longer term outside storage (stock or site) the pallets should be stored under a secure waterproof covering.

Universal Slabs should not be left permanently exposed to the elements.


Product specifications

Universal Slab RS33

Thickness (mm)

Thermal conductivity (W/mK)

Thermal resistance (m2K/W)

Slab Size (mm)

Slabs per Pack

Area per Pack (m2)

100

0.037

2.70

1200 x 600

5

3.60

70

0.037

1.89

1200 x 600

8

5.76

60

0.037

1.60

1200 x 600

8

5.76

50

0.037

1.35

1200 x 600

10

7.20

40

0.037

1.05

1200 x 600

12

8.64

30

0.037

0.80

1200 x 600

18

12.96

All Dimensions are nominal

 

Universal Slab RS45

Thickness (mm)

Thermal conductivity (W/mK)

Thermal resistance (m2K/W)

Slab Size (mm)

Slabs per Pack

Area per Pack (m2)

100

0.035

2.85

1200 x 600

5

3.60

75

0.035

2.10

1200 x 600

6

4.32

60

0.035

1.70

1200 x 600

8

5.76

50

0.035

1.40

1200 x 600

10

7.20

40

0.035

1.10

1200 x 600

12

8.64

30

0.035

0.85

1200 x 600

16

11.52

25

0.035

0.70

1200 x 600

20

14.40

All Dimensions are nominal

 

Universal Slab RS60

Thickness (mm)

Thermal conductivity (W/mK)

Thermal resistance (m2K/W)

Slab Size (mm)

Slabs per Pack

Area per Pack (m2)

100

0.035

2.85

1200 x 600

4

2.88

75

0.035

2.10

1200 x 600

6

4.32

60

0.035

1.70

1200 x 600

7

5.04

50

0.035

1.40

1200 x 600

9

6.48

40

0.035

1.10

1200 x 600

11

7.92

30

0.035

0.85

1200 x 600

14

10.08

25

0.035

0.70

1200 x 600

18

12.96

All Dimensions are nominal

 

Product availability indicators

Availability is GoodAvailability Excellent - popular product generally available at majority of our depots.
Expect 1 - 2 working days for delivery.

Availability is FairAvailability Good - only available at selected depots, or shipped directly from the manufacturer.
Allow 1 - 4 working days for delivery.

Availability is PoorAvailability Fair - specialist, or application specific product, sourced directly from manufacturer.
Allow 1 - 9 working days for delivery, plus minimum quantities may apply.

Availability is ProblematicAvailability poor - specialist, or application specific product, sourced directly from manufacturer, possibly fabricated to order.

Extended lead-times apply . Minimum quantities will apply.

Availability is not determinedAvailability Undetermined - Special circumstances are involved in the supply of these products. Please check the notes relating to these items.

Knauf Universal Slab RS80, RS100, RS128, RS140, RS200

These Universal Slabs are available, but not commonly used by our main markets. We can make these items available to our customers ... at the very best prices, as usual. However, there may be a short lead time, and minimum order requirements.



Manufacturer's details

Knauf Insulation Ltd., PO Box 10, Stafford Road, St Helens, Merseyside, WA10 3NS, England

Tel: +44 (0) 1744 766666 Fax: +44 (0) 1744 766667

Email: Click here - Internet: www.knaufinsulation.com